£346 Find Cheap Flights from London to Chicago – Compare and Save
This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Chicago departing on 29/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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0 bags
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1 adult, Economy, 0 bags
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Everything you should know
Cheapest return flight
£524
Typical prices: £496-£772
Icelandair
Tue 20/11Wed 5/12
LGW - ORD • 1 stop
Cheapest direct flights
£527
Typical prices: £551-£817
British Airways
Sun 30/9Mon 29/1
LHR - ORD • Direct
Advice from real travellers
AI-powered summary based on content written by KAYAK users. AI can make mistakes.
Lufthansa Premium Economy adds 50% more space and an extra checked bag.
BA premium economy adds 18 cm legroom; Finnair Economy Comfort costs extra.
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Chicago!
Flight Deals
Booking Insights
Expert advice
Flight Deals
Cheap Flights from London to Chicago (LON-CHI)
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Chicago that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.
Return
One-way
Last minute
Direct
Recent return flight deals from London to Chicago
Wed, 28 Oct - Sat, 14 Nov
12:15 - 18:20LHR London Heathrow-ORD Chicago O'Hare Intl
11h 05m1 stop Reykjavik Keflavik Intl
18:30 - 10:50ORD Chicago O'Hare Intl-LHR London Heathrow
10h 20m1 stop Reykjavik Keflavik Intl
£524Icelandair
Tue, 6 Oct - Tue, 13 Oct
13:10 - 19:15LTN London Luton-ORD Chicago O'Hare Intl
12h 05m1 stop Dublin
15:45 - 09:15ORD Chicago O'Hare Intl-LTN London Luton
11h 30m1 stop Dublin
£524Multiple Airlines
Fri, 20 Nov - Sat, 5 Dec
11:55 - 17:20LGW London Gatwick-ORD Chicago O'Hare Intl
11h 25m1 stop Reykjavik Keflavik Intl
18:30 - 10:55ORD Chicago O'Hare Intl-LGW London Gatwick
10h 25m1 stop Reykjavik Keflavik Intl
£524Icelandair
Thu, 22 Oct - Thu, 29 Oct
08:40 - 19:15LGW London Gatwick-ORD Chicago O'Hare Intl
16h 35m1 stop Dublin
21:05 - 14:30ORD Chicago O'Hare Intl-LGW London Gatwick
12h 25m1 stop Dublin
£524Multiple Airlines
Thu, 29 Oct - Sat, 7 Nov
12:10 - 19:20LHR London Heathrow-ORD Chicago O'Hare Intl
12h 10m1 stop Dublin
20:30 - 10:25ORD Chicago O'Hare Intl-LHR London Heathrow
7h 55mdirect
£527British Airways
Wed, 30 Sep - Fri, 29 Jan
13:10 - 15:55LHR London Heathrow-ORD Chicago O'Hare Intl
8h 45mdirect
17:10 - 06:55ORD Chicago O'Hare Intl-LHR London Heathrow
7h 45mdirect
£527British Airways
Sat, 3 Oct - Sat, 31 Oct
12:00 - 19:15LHR London Heathrow-ORD Chicago O'Hare Intl
13h 15m1 stop Dublin
16:55 - 09:05ORD Chicago O'Hare Intl-LHR London Heathrow
11h 10m1 stop Dublin
£528Aer Lingus
Wed, 18 Nov - Sat, 28 Nov
11:10 - 18:25LHR London Heathrow-ORD Chicago O'Hare Intl
13h 15m1 stop Munich Franz Josef Strauss
17:45 - 07:55ORD Chicago O'Hare Intl-LHR London Heathrow
8h 10mdirect
£530Lufthansa
Tue, 20 Oct - Tue, 27 Oct
08:50 - 14:00LHR London Heathrow-ORD Chicago O'Hare Intl
11h 10m1 stop Dublin
21:05 - 19:50ORD Chicago O'Hare Intl-LHR London Heathrow
17h 45m1 stop Dublin
£530Aer Lingus
Sat, 19 Sep - Fri, 6 Nov
07:30 - 14:55LHR London Heathrow-ORD Chicago O'Hare Intl
13h 25m1 stop Frankfurt am Main
14:30 - 09:40ORD Chicago O'Hare Intl-LHR London Heathrow
13h 10m1 stop Denver Intl
£533Lufthansa
Recent one-way flight deals from London to Chicago
Fri, 29 Jan
13:45 - 14:55LTN London Luton-ORD Chicago O'Hare Intl
31h 10m3 stops Bilbao Valencia Madrid Barajas
£346Multiple Airlines
Fri, 15 Jan
20:25 - 19:15LTN London Luton-ORD Chicago O'Hare Intl
28h 50m3 stops Milan Malpensa Malaga Dublin
£346Multiple Airlines
Sun, 8 Nov
09:05 - 14:00LHR London Heathrow-ORD Chicago O'Hare Intl
34h 55m1 stop Vienna Intl
£346Austrian Airlines
Sun, 8 Nov
09:05 - 14:00LHR London Heathrow-ORD Chicago O'Hare Intl
34h 55m1 stop Vienna Intl
£347Austrian Airlines
Sun, 24 Jan
15:40 - 18:45LHR London Heathrow-ORD Chicago O'Hare Intl
9h 05mdirect
£350British Airways
Fri, 29 Jan
15:40 - 18:45LHR London Heathrow-ORD Chicago O'Hare Intl
9h 05mdirect
£350British Airways
Mon, 9 Nov
11:55 - 17:20LGW London Gatwick-ORD Chicago O'Hare Intl
11h 25m1 stop Reykjavik Keflavik Intl
£350Icelandair
Mon, 16 Nov
11:55 - 17:20LGW London Gatwick-ORD Chicago O'Hare Intl
11h 25m1 stop Reykjavik Keflavik Intl
£350Icelandair
Wed, 27 Jan
11:10 - 18:25LHR London Heathrow-ORD Chicago O'Hare Intl
13h 15m1 stop Munich Franz Josef Strauss
£362Lufthansa
Wed, 27 Jan
11:10 - 18:25LHR London Heathrow-ORD Chicago O'Hare Intl
13h 15m1 stop Munich Franz Josef Strauss
£364Lufthansa
Recent last minute flight deals from London to Chicago
Fri, 11 Sep - Thu, 24 Sep
07:40 - 14:00LHR London Heathrow-ORD Chicago O'Hare Intl
12h 20m1 stop Dublin
21:00 - 13:55ORD Chicago O'Hare Intl-LHR London Heathrow
10h 55m1 stop Dublin
£525Aer Lingus
Tue, 15 Sep - Mon, 19 Oct
21:25 - 18:15LHR London Heathrow-ORD Chicago O'Hare Intl
26h 50m1 stop Reykjavik Keflavik Intl
19:25 - 11:55ORD Chicago O'Hare Intl-LHR London Heathrow
10h 30m1 stop Reykjavik Keflavik Intl
£526Icelandair
Fri, 11 Sep - Sun, 13 Sep
06:00 - 12:35LHR London Heathrow-ORD Chicago O'Hare Intl
12h 35m1 stop Zurich
19:05 - 13:00ORD Chicago O'Hare Intl-LHR London Heathrow
11h 55m1 stop Zurich
£527SWISS
Fri, 11 Sep - Sat, 19 Sep
06:35 - 14:00STN London Stansted-ORD Chicago O'Hare Intl
13h 25m1 stop Dublin
15:45 - 07:50ORD Chicago O'Hare Intl-STN London Stansted
10h 05m1 stop Dublin
£528Multiple Airlines
Tue, 15 Sep - Tue, 20 Oct
07:25 - 14:05LHR London Heathrow-ORD Chicago O'Hare Intl
12h 40m1 stop Munich Franz Josef Strauss
16:25 - 06:45ORD Chicago O'Hare Intl-LHR London Heathrow
8h 20mdirect
£532Lufthansa
Tue, 15 Sep - Sun, 18 Oct
21:25 - 18:15LHR London Heathrow-ORD Chicago O'Hare Intl
26h 50m1 stop Reykjavik Keflavik Intl
19:25 - 11:55ORD Chicago O'Hare Intl-LHR London Heathrow
10h 30m1 stop Reykjavik Keflavik Intl
£532Icelandair
Sat, 12 Sep - Sat, 19 Sep
07:30 - 14:55LHR London Heathrow-ORD Chicago O'Hare Intl
13h 25m1 stop Frankfurt am Main
18:05 - 08:30ORD Chicago O'Hare Intl-LHR London Heathrow
8h 25mdirect
£534Lufthansa
Fri, 11 Sep - Thu, 24 Sep
07:40 - 14:00LHR London Heathrow-ORD Chicago O'Hare Intl
12h 20m1 stop Dublin
21:00 - 13:55ORD Chicago O'Hare Intl-LHR London Heathrow
10h 55m1 stop Dublin
£538Aer Lingus
Mon, 14 Sep - Sun, 27 Sep
09:45 - 12:25LHR London Heathrow-ORD Chicago O'Hare Intl
8h 40mdirect
17:55 - 07:40ORD Chicago O'Hare Intl-LHR London Heathrow
7h 45mdirect
£547Finnair
Mon, 14 Sep - Sun, 27 Sep
09:45 - 12:25LHR London Heathrow-ORD Chicago O'Hare Intl
8h 40mdirect
17:55 - 07:40ORD Chicago O'Hare Intl-LHR London Heathrow
7h 45mdirect
£571Finnair
Recent direct flight deals from London to Chicago
Wed, 30 Sep - Fri, 29 Jan
13:10 - 15:55LHR London Heathrow-ORD Chicago O'Hare Intl
8h 45mdirect
17:10 - 06:55ORD Chicago O'Hare Intl-LHR London Heathrow
7h 45mdirect
£527British Airways
Fri, 2 Oct - Mon, 25 Jan
13:10 - 15:55LHR London Heathrow-ORD Chicago O'Hare Intl
8h 45mdirect
17:10 - 06:55ORD Chicago O'Hare Intl-LHR London Heathrow
7h 45mdirect
£527British Airways
Wed, 18 Nov - Sat, 28 Nov
16:30 - 19:30LHR London Heathrow-ORD Chicago O'Hare Intl
9h 00mdirect
18:30 - 08:35ORD Chicago O'Hare Intl-LHR London Heathrow
8h 05mdirect
£550Finnair
Thu, 24 Sep - Sun, 27 Sep
14:10 - 17:25LHR London Heathrow-ORD Chicago O'Hare Intl
9h 15mdirect
16:25 - 06:45ORD Chicago O'Hare Intl-LHR London Heathrow
8h 20mdirect
£555Lufthansa
Sat, 31 Oct - Wed, 4 Nov
13:35 - 17:55LHR London Heathrow-ORD Chicago O'Hare Intl
9h 20mdirect
21:50 - 12:00ORD Chicago O'Hare Intl-LHR London Heathrow
8h 10mdirect
£555Lufthansa
Sat, 19 Sep - Thu, 5 Nov
14:10 - 17:25LHR London Heathrow-ORD Chicago O'Hare Intl
9h 15mdirect
21:50 - 12:00ORD Chicago O'Hare Intl-LHR London Heathrow
8h 10mdirect
£556Austrian Airlines
Sat, 19 Sep - Thu, 12 Nov
14:10 - 17:25LHR London Heathrow-ORD Chicago O'Hare Intl
9h 15mdirect
15:45 - 05:55ORD Chicago O'Hare Intl-LHR London Heathrow
8h 10mdirect
£556Brussels Airlines
Wed, 7 Oct - Wed, 21 Oct
14:10 - 17:25LHR London Heathrow-ORD Chicago O'Hare Intl
9h 15mdirect
16:25 - 06:45ORD Chicago O'Hare Intl-LHR London Heathrow
8h 20mdirect
£558Austrian Airlines
Sat, 19 Sep - Sat, 26 Sep
14:10 - 17:25LHR London Heathrow-ORD Chicago O'Hare Intl
9h 15mdirect
18:05 - 08:30ORD Chicago O'Hare Intl-LHR London Heathrow
8h 25mdirect
£558Brussels Airlines
Tue, 6 Oct - Tue, 13 Oct
14:45 - 17:35LHR London Heathrow-ORD Chicago O'Hare Intl
8h 50mdirect
18:05 - 08:05ORD Chicago O'Hare Intl-LHR London Heathrow
8h 00mdirect
£563Finnair
Booking Insights
Price, demand, and travel trends for London to Chicago flights
Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from London to Chicago with more confidence.
Prices
Airlines
Delays
Stopovers
More
How much is a return flight from London to Chicago?
This analysis is based on the cheapest return price found on KAYAK in the last 12 months by searching for a flight from London to Chicago departing in November.
Return flights from London to Chicago start at £524. Prices are typical for this route right now, with typical return fares ranging from £496 to £772. The lowest price found in the past 5 days was £524 on Icelandair.
What is the cheapest London to Chicago flight route?
KAYAK tracks online flight deals over the last 12 months and analyses pricing trends to identify the best available fares.
London City Airport (LCY) to Chicago O'Hare Intl Airport (ORD) is the cheapest London to Chicago route, averaging £437 return. Other London to Chicago routes average £725, based on KAYAK data over the past 12 months.
What's the cheapest day of the week to fly from London to Chicago?
Thursday is the cheapest day of the week to fly from London to Chicago and is 3% cheaper than the average day. Sunday is the most expensive day with flight prices 5% higher than average. Based on deals found by KAYAK users in the last 12 months.
What is the cheapest month to fly from London to Chicago?
KAYAK internal proprietary data takes all prices for each month over the last 12 months for return flights from London to Chicago, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
February is the cheapest month to fly from London to Chicago at £449 return.
August (£803) and July (£762) are the most expensive months.
The price difference between flying in the cheapest and most expensive months is 78% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.
When are prices from London to Chicago the cheapest?
Flights from London to Chicago are cheapest 23 weeks before departure. Booking in this window typically costs about 17% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.
What is the cheapest airline to fly from London to Chicago?
Icelandair (£524) and British Airways (£527) are the cheapest airlines to fly return from London to Chicago according to KAYAK data over the last 5 days.
Which airline offers the most direct flights between London and Chicago?
United Airlines and American Airlines offer the most frequent direct flights from London to Chicago at 21 and 16 flights per week, respectively. British Airways is another good option, operating 14 flights per week. Based on KAYAK flight data over the last 3 months.
What is the most punctual time of day to fly from London to Chicago?
Morning flights have the fewest delays. Afternoon departures experience delays most often. Based on KAYAK data over the past 3 months.
Which day of the week has the fewest delays on London to Chicago flights?
Monday has the fewest flight delays on the London to Chicago route at only 9% of flights delayed.
Thursday has the most delays at 11%. Based on KAYAK data over the past 3 months.
Which airline is the most punctual on London to Chicago flights?
United Airlines is the most punctual airline on London to Chicago flights – KAYAK's system tracked that 94% of flights were on time in the past 3 months.
What is the most popular stopover airport when flying from London to Chicago?
KAYAK data for 1-stop return journeys over the past 3 months. Only counts itineraries with the same stopover on both legs.
Reykjavik Keflavik Intl (KEF) is the most popular stopover for the London to Chicago route. 45% of KAYAK users who booked 1-stop return journeys over the past 3 months connected via KEF.
What is the cheapest stopover airport when flying from London to Chicago?
Flights via Miami (MIA) offer the most affordable fares, with an average return price of £377. Based on KAYAK data over the past 3 months.
Which route, including a stopover, takes the shortest amount of time to travel from London to Chicago?
Detroit Metropolitan Wayne County (DTW) offers the shortest 1-stop connection from London to Chicago at 10h 39m one-way, 1h 40m longer than the 8h 59m direct flight. Based on KAYAK data over the past 3 months.
When flying from London to Chicago, which airport offers the shortest stopover?
Detroit Metropolitan Wayne County (DTW) had the shortest average connection time for London to Chicago stopovers at 338 minutes over the past 3 months.
How many direct flights run daily between London and Chicago?
There are about 8 flights per day from London to Chicago, which is about 56 flights per week, spread evenly across the week.
What time of day do most flights depart from London to Chicago?
Based on KAYAK flight schedules for the upcoming 3 months.
Most direct flights from London to Chicago depart in the morning, accounting for 50% of direct departures. Around 4 flights are scheduled in that window over the next three months.
Expert advice for your flight from London to Chicago
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden
Expert on British Airways
Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.
Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has travelled to more than 50 countries across six continents.
Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.
Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, The Points Guy, and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.
Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialising in airline interiors and regulations. 10 years ago, she pivoted to journalism. She shares her insights in leading aviation, travel and business publications and on her site, FlightChic.
Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or out at sea, likely en route to Antarctica or the Arctic.
Aviation and business journalist Kirstie didn’t leave England until she was 18 years old, but has since travelled to over 20 countries including Japan, Canada, and Iceland. Her travel expertise lies in European city breaks, including how to find the best locally-owned hotels and restaurants and how to optimise the airport experience for your needs.
Best time to beat the crowds (28% less expensive on average)
Most popular time to fly (11% more expensive on average)
Flights from London Luton Airport to Chicago O'Hare Intl Airport
When to book flights from London to Chicago
Are your dates flexible? Find out the best times to travel from London to Chicago based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.
Flights from London to Chicago: the best tips from KAYAK users' own experiences
Insights shared by verified travellers who flew the route from London to Chicago
Verified travelerFlew with Austrian Airlines-Sept 2026
Never plan any close connections in O'Hare. I give myself at least 3 hours if I have a connection. Nothing is convenient and if you need to change terminals, and you usually do, it takes forever. In addition, customs takes a long time. I entered the UK more easily than I got back into the country of my birth. Heathrow is not bad unless you need to go from any other terminal to Terminals 4 & 5. That is difficult bc there is no clear signage. Don't be afraid to ask for help. I have found people ready to help, especially if you are a senior.
Verified travelerFlew with British Airways-Jun 2025
I wish I'd known that there were food and shopping opportunities at the B gate area. This was a lovely, NOT busy place to spend time. I'd have gone directly there if I'd known. Definitely a nice place to wait.
Verified travelerFlew with British Airways-Apr 2025
Make sure to allow ample time between connecting flights. I have to hoof it when I realized that TSA required bags to be picked up and rechecked.
MichaelFlew with British Airways-Apr 2025
Have a light luggage as much as you can. Boarding gate walk is not a joke.
Verified travelerFlew with British Airways-Jul 2024
Gate 10 is a train wreck because there are multiple gates distinguished by a letter following A10. If possible get there as quickly as possible to find the appropriate gate.
EmilyFlew with British Airways-Mar 2024
Bring as few liquids as possible or put them in checked bag. They are very strict at Heathrow about all of them fitting into one small ziplock bag
Your London to Chicago flight questions, answered
Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.
How much is a taxi from O’Hare Airport to the city centre?
If you’d prefer to skip the train after your flight from London to Chicago, the taxi rank outside the departure area is just a few steps away from your arrival terminal. A taxi from the airport to the centre will cost around $40 (£32) + tip, although using a rideshare app like Uber or Lyft can get you lower prices.
Is there a direct transfer to the Convention Centre from the airport?
The convention centre near O’Hare Airport is directly linked to the airport via a shuttle bus. This shuttle bus also features transportation to nearby shopping and dining options for long layovers. If you’re going to the convention centre near the city centre (McCormick Place), a third-party shuttle can be arranged for a direct connection.
Does O’Hare Airport offer free WiFi?
Unlimited free WiFi connection is available to travellers in all areas of O’Hare Airport, both before and after security. You have to watch an ad to connect, but after that, you will have access to all the WiFi you need to make additional travel arrangements, organise your emails or complete some last-minute work.
How much is daily parking at O’Hare Airport?
O’Hare Airport has a handful of daily parking options available to travellers. The main parking areas around the airport cost about $40 (£32) per day for parking, while the economy lots, which are accessible via the dedicated airport tram, cost anywhere between approximately $10-17 (£8-13.50) per day.
Are there hotel at London Airports (LON)?
Before you fly there are hotels you can stay in. For example, at Gatwick Airport there is the Sofitel, which is located in the North Terminal. Whereas at Heathrow you can stay at the Aerotel, which is at Terminal 3. The hotels are located nearby to the airports, so your journey will be made easy the following day.
Can I exchange my currency at Chicago Airports (CHI)?
You can change your money easily upon landing at CHI Airports. For example, at O’Hare International you’ll find a Seaway National Bank in Terminal 2 and in Terminal 5 on both the lower and upper levels. At Midway Airport there is also a Seaway National Bank Currency Exchange, which you will find on the airport’s concourse A.
Which airlines offer extra legroom and free seat selection on London to Chicago flights?
Among airlines operating London to Chicago flights:
• British Airways: offers extra legroom • Finnair: offers free seat selection • United Airlines: offers extra legroom; offers free seat selection • Iberia: offers free seat selection • American Airlines: offers extra legroom; offers free seat selection
Extra legroom and free seat selection availability depends on fare class and route.
Which airlines are available on the route from London to Chicago?
3 airlines operate flights between London and Chicago. The airlines offering direct flights on this route include:
• United Airlines • American Airlines • British Airways
Which airports can I use when flying from London to Chicago?
Flights from London to Chicago may depart from several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN), with arrivals available at airports in Chicago such as Chicago Midway (MDW), Chicago O'Hare Intl (ORD) and Chicago Greater Rockford (RFD).
Which airlines include bags at no extra cost on London to Chicago flights?
Here are some options for this route, based on selected ticket types and cabin classes:
• British Airways: a cabin bag and a checked bag in Economy class • Lufthansa: a cabin bag and a checked bag in Economy class • Finnair: a cabin bag and a checked bag in Economy class
Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.
Which cabin classes can I book on flights from London to Chicago?
Four cabin classes are available on flights from London to Chicago:
• Economy class • Premium Economy Class • Business Class • First Class
Prices vary by airline.
How much can I save by having a stopover when flying from London to Chicago?
On this route, stopover flights are cheaper than direct options on average. Stopover fares average £377 return via Miami (MIA), compared with £671 for direct.
What is the standard checked bag allowance on flights from London to Chicago?
There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £41–£74 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.
Which airports do connecting flights from London to Chicago pass through?
One-stop flights from London to Chicago most commonly connect through:
• Reykjavik Keflavik Intl (KEF) – 45% of one-stop connections • Dublin (DUB) – 23% of one-stop connections • Kastrup Copenhagen (CPH) – 13% of one-stop connections • Lisbon Humberto Delgado (LIS) – 10% of one-stop connections
Reykjavik Keflavik Intl (KEF) handles the largest share of one-stop connections on this route.
Can I save money by using flexible dates for flights from London to Chicago?
Yes. Being flexible with your travel dates can save you up to 8% on the London to Chicago route. Thursday is the cheapest departure day at £604 return on average, while Sunday is the most expensive at £654, a difference of £50. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
At what point is a flight considered delayed on the route from London to Chicago?
A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the London to Chicago route, 10% of flights were delayed in the past 3 months, with delays averaging 3 hours 0 minutes.
How are flight departures from London to Chicago spread across the day?
Morning is the busiest departure period on London to Chicago flights, with 50% leaving in that window. Afternoon departures account for 50%, Evening flights for 0%, and Night flights for 0%.
What popular places can I visit in Chicago?
Some of the most popular sights in Chicago are Grant Park, Magnificent Mile, and United Center. These are among the most viewed places in Chicago on KAYAK.
What are the earliest and latest flights from London to Chicago?
These are the earliest and latest flight times available from London to Chicago:
• Earliest: departs at 07:40 and lands at 16:39 • Latest: departs at 16:30 and lands at 01:29.
The flight takes about 8h 59m.
How expensive are last-minute London to Chicago flights?
Last-minute fares on this route (booked within 2 weeks of departure) run 12% above the route average of £622. Book 23 weeks before departure for the lowest fares.
How long is a flight from London to Chicago?
A direct flight from London to Chicago takes 8h 59m, covering 3,945 miles.
Do I need a passport to fly from London to Chicago?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
How are flight prices from London to Chicago looking right now?
One-way fares from London to Chicago are currently lower than usual. Average one-way flight prices are about £352, which is 31% below the typical average for this route.
How does United Airlines's on-time performance compare to other airlines on London to Chicago flights?
United Airlines is slightly above the route average for timely arrivals, while British Airways has a lower on-time arrival rate. On-time arrival rates on London to Chicago flights are:
• United Airlines: 94% on time • British Airways: 89% on time • American Airlines: 87% on time
On average, flights on this route are punctual 90% of the time.
How do delay rates compare for morning and evening flights from London to Chicago?
Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.
How much time can I save by choosing a different stopover airport from London to Chicago?
Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time of 10h 39m, compared to 11h 02m via Amsterdam Schiphol (AMS) and 11h 10m via Dublin (DUB).
What is the time difference between London and Chicago?
Chicago is 6 hours behind London (Central Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.
What car hire options are available in Chicago?
Since Chicago is served by multiple airports, car hire options and rates can vary depending on which one you fly into. Near Chicago O'Hare Intl Airport (ORD) – daily rates from around £13:
· Routes Car & Truck Rentals · Europcar · Hertz · Dollar · Ace
Near Chicago Midway Airport (MDW) – daily rates from around £24:
· Hertz · Dollar · Budget · Alamo · Rent-A-Wreck
Near Chicago Greater Rockford Airport (RFD) – daily rates from around £22:
How much should I expect to pay for a London to Chicago flight?
Return flights from London to Chicago range from £496 to £772, with an average of £622 over the past 12 months. Anything below £496 counts as a good deal.
Which airlines offer Wi-Fi on London to Chicago flights?
American Airlines is the only airline on the London to Chicago route offering in-flight Wi-Fi. Pricing depends on fare class.
Your guide to booking London to Chicago flights
Get tips on when to book, when to fly, and what to know before your trip.
If your dates are flexible, aim for a Thursday departure instead of Sunday. On this route, Thursday flights average £604 – about £50 less than Sunday (8% savings) based on the last 12 months.
For the best chance at a low fare, aim to book around 23 weeks before you fly. On this route, that window historically saves about 17% versus last-minute pricing (KAYAK booking data, last 12 months).
If you can choose when to travel, plan your London to Chicago trip for February. Fares historically average £449 return in that month – typically £354 less than the most expensive month, which is August (based on the last 12 months).
If arriving on time is high on your priority list, United Airlines is the strongest pick on this route. 94% of United Airlines flights from London to Chicago arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 90%. When flights on this route do arrive late, the average delay is 3 hours, so choosing an airline with strong on-time performance can make a difference on tight schedules.
If you have the time, taking a 1-stop flight through Miami Airport (MIA) can be cheaper than flying direct. The cheapest stopover option averages £377 return on this route – about £294 less than direct flights (based on the last 12 months).
As you’re booking flights from London to Chicago, you may notice that many of the more affordable flights have at least one stop. Non-stop travel between the two cities is limited, but non-stop flight deals can be found with Austrian Airlines and Finnair, especially if you book far enough in advance and compare prices here on KAYAK.co.uk.
Chicago has two main airports, but unless you’re making two stops you’ll most likely be flying into Chicago O’Hare Airport. O’Hare Airport lies 14 miles northwest of the city centre and is the third-busiest airport in the US. Lines for security at O’Hare can be long, so be sure to arrive early.
Chicago city centre can be reached from O’Hare in a number of different ways. The most popular way to get to the centre is the CTA Blue Line train. This train has a direct connection with the airport and connects to the Chicago metro and elevated train system, which can take you anywhere in the city. A single ride will cost you around $2.75 (£2.19).
If you’re traveling with children, O’Hare features a “Kids on the Fly” play area thanks to its partnership with the Chicago Children’s Museum. Your young ones can play on large aeroplane and helicopter models until your flight home or to your next destination departs. “Kids on the Fly” is located in the upper level of Terminal 2.
Feeling hungry before your flight? O’Hare offers travellers several airport restaurant options. Fill up before you take off with Chicago-style hot dogs, a wrap from a Mediterranean cafe, Chinese fried rice and a long list of other options. O’Hare’s restaurants are spread throughout the airport, so you’ll have plenty of options whether you’re in T1, T2 or T3.
If you find cheap flights from London to Chicago, the flights normally depart at peak times, which means the airport will be busy. To pass through security quicker at London airports (LON) there is the option of the fast track service. The cost of this at Gatwick Airport (LGW) is about £5, whilst at Heathrow Airport (LHR) it’s around £12.50.
You can get to London airports quickly before you depart. If you are departing from Gatwick then there is the Gatwick Express from Victoria train station. This takes about 30 minutes. Whereas if you’re travelling from Heathrow Airport, you can get the Heathrow Express in about 15 minutes from Paddington train station. Alternatively, you can get the Piccadilly Line from an area like Covent Garden in about 45 minutes.
When you arrive at Chicago Airports (CHI) you can get to nearby locations quickly. For instance, if you land at O’Hare International Airport (ORD), you can drive to Schaumburg in about 19 minutes or Naperville in around 42 minutes. From Midway Airport (MDW) you are able to go by car to Bloomington in about 2h 10min or Joliet in around 1 hour.
Prefer to fly direct from London to Chicago?
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London to Chicago.
Find which airlines fly direct from London to Chicago, which days they fly and book direct flights.
Direct departures
London to Chicago
Monday
American Airlines,British Airways,United Airlines
American Airlines,British Airways, +1 more
Tuesday
American Airlines,British Airways,United Airlines
American Airlines,British Airways, +1 more
Wednesday
American Airlines,British Airways,United Airlines
American Airlines,British Airways, +1 more
Thursday
American Airlines,British Airways,United Airlines
American Airlines,British Airways, +1 more
Friday
American Airlines,British Airways,United Airlines
American Airlines,British Airways, +1 more
Saturday
American Airlines,British Airways,United Airlines
American Airlines,British Airways, +1 more
Sunday
American Airlines,British Airways,United Airlines
American Airlines,British Airways, +1 more
See more direct flights
Direct returns
Chicago to London
Monday
American Airlines,British Airways,United Airlines
American Airlines,British Airways, +1 more
Tuesday
American Airlines,British Airways,United Airlines
American Airlines,British Airways, +1 more
Wednesday
American Airlines,British Airways,United Airlines
American Airlines,British Airways, +1 more
Thursday
American Airlines,British Airways,United Airlines
American Airlines,British Airways, +1 more
Friday
American Airlines,British Airways,United Airlines
American Airlines,British Airways, +1 more
Saturday
American Airlines,British Airways,United Airlines
American Airlines,British Airways, +1 more
Sunday
American Airlines,British Airways,United Airlines
American Airlines,British Airways, +1 more
See more direct flights
More options for your flight from London to Chicago
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Flights from the other most popular airlines that fly from London to Chicago according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.
Cabin class types available on flights from London to Chicago
Cabin classes available on flights from London to Chicago. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.
The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.
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