£141 Find Cheap Flights from Chicago O'Hare Airport to United Kingdom

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to the United Kingdom departing on 7/12. 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.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from O'Hare Intl to the United Kingdom

Cheapest return prices found by our users on KAYAK in the last 72 hours
London
London2 stops£426
Manchester
Manchester2 stops£425
Edinburgh
Edinburgh2 stops£342
Birmingham
Birmingham2 stops£347
Bristol
Bristol2 stops£442
Aberdeen
Aberdeen2 stops£398
Liverpool
Liverpool3 stops£557
Leeds
Leeds1 stop£489
Inverness
Inverness1 stop£382
Cardiff
Cardiff2 stops£474
London
London2 stops£426
Manchester
Manchester2 stops£425
Edinburgh
Edinburgh2 stops£342
Birmingham
Birmingham2 stops£347
Bristol
Bristol2 stops£442
Aberdeen
Aberdeen2 stops£398
Liverpool
Liverpool3 stops£557
Leeds
Leeds1 stop£489
Inverness
Inverness1 stop£382
Cardiff
Cardiff2 stops£474

Book Cheap O'Hare Intl to the United Kingdom Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from O'Hare Intl to the United Kingdom 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.

Recent return flight deals from O'Hare Intl to the United Kingdom

Thu, 8 Jan - Tue, 13 Jan
Multiple Airlines Logo
18:30 - 22:30ORD-EDI
22h 00m2 stops
Multiple Airlines Logo
08:40 - 17:20EDI-ORD
14h 40m2 stops
£342Multiple Airlines
Find Deal
Thu, 8 Jan - Thu, 15 Jan
Multiple Airlines Logo
18:30 - 21:35ORD-BHX
21h 05m2 stops
Multiple Airlines Logo
07:25 - 17:20BHX-ORD
15h 55m2 stops
£347Multiple Airlines
Find Deal
Mon, 12 Jan - Tue, 20 Jan
Multiple Airlines Logo
18:30 - 20:15ORD-EDI
19h 45m2 stops
Multiple Airlines Logo
08:40 - 17:20EDI-ORD
14h 40m2 stops
£347Multiple Airlines
Find Deal
Sun, 1 Mar - Sat, 7 Mar
Icelandair Logo
18:30 - 09:55ORD-GLA
9h 25m1 stop
Icelandair Logo
12:35 - 17:20GLA-ORD
10h 45m1 stop
£358Icelandair
Find Deal
Tue, 3 Feb - Sat, 7 Feb
Icelandair Logo
18:30 - 09:55ORD-GLA
9h 25m1 stop
Icelandair Logo
12:35 - 17:20GLA-ORD
10h 45m1 stop
£370Icelandair
Find Deal
Mon, 23 Feb - Thu, 5 Mar
Scandinavian Airlines Logo
19:20 - 12:15ORD-MAN
34h 55m2 stops
Scandinavian Airlines Logo
10:10 - 16:45MAN-ORD
12h 35m1 stop
£425Scandinavian Airlines
Find Deal
Mon, 26 Jan - Tue, 3 Feb
Scandinavian Airlines Logo
19:20 - 21:40ORD-LHR
20h 20m1 stop
Scandinavian Airlines Logo
17:30 - 16:45LHR-ORD
29h 15m2 stops
£427Scandinavian Airlines
Find Deal
Wed, 7 Jan - Wed, 14 Jan
Virgin Atlantic Logo
17:20 - 21:15ORD-BHX
21h 55m1 stop
Virgin Atlantic Logo
06:15 - 19:35BHX-ORD
19h 20m2 stops
£495Virgin Atlantic
Find Deal
Wed, 14 Jan - Thu, 22 Jan
Aer Lingus Logo
21:00 - 15:35ORD-SOU
12h 35m1 stop
Aer Lingus Logo
09:30 - 19:15SOU-ORD
15h 45m1 stop
£550Aer Lingus
Find Deal
Thu, 16 Apr - Thu, 23 Apr
Aer Lingus Logo
15:45 - 08:40ORD-SOU
10h 55m1 stop
Aer Lingus Logo
09:10 - 19:00SOU-ORD
15h 50m1 stop
£580Aer Lingus
Find Deal
Booking Insights

KAYAK's insights & trends for O'Hare Intl to the United Kingdom flights

Get data-powered insights and trends into flights from O'Hare Intl to the United Kingdom to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Chicago O'Hare Intl Airport to the United Kingdom flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to the United Kingdom from Chicago O'Hare Intl Airport found in the last 72 hours was to London, at £467 return. The most popular route is from Chicago O'Hare Intl Airport (ORD) to London Heathrow Airport (LHR), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £467.

Can I save money by flying with a stopover from Chicago O'Hare Intl Airport to the United Kingdom?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of £566, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to the United Kingdom?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to the United Kingdom, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago O'Hare Intl Airport to the United Kingdom is October, when tickets cost £489 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is £888 and £733 respectively.

What’s the cheapest day of the week to fly from Chicago O'Hare Airport to United Kingdom?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to the United Kingdom clicked on KAYAK for each day over the last 12 months.

For Chicago O'Hare Airport to United Kingdom, Sunday is the cheapest day to fly on average and Saturday is the most expensive. Flying from United Kingdom back to Chicago O'Hare Airport, the best deals are generally found on Wednesday, with Saturday being the most expensive.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to the United Kingdom?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to the United Kingdom, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on the flight from Chicago O'Hare Intl Airport to the United Kingdom, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know - Cheap tickets from Chicago O'Hare Airport to United Kingdom

Low seasonFebruary
Cheapest flight£141
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly and prices are also 13% lower on average.
Flight from Chicago O'Hare Airport to Manchester

Flights from O'Hare Intl to the United Kingdom: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from O'Hare Intl to the United Kingdom 
Verified travelerFlew with British AirwaysORD-LHRJun 2025
Get a wheel chair if you have difficulty walking
JoeFlew with IberiaORD-LHRApr 2025
Get there early. Nice airport options while you wait.
Verified travelerFlew with IberiaORD-LHRMay 2025
Get to the airport early so you’re relaxed. Con yourself into believing it’s bedtime and try to sleep so that you can keep going all day when you get there. If you can afford more comfy seats it might be worth it - though I always have the cheap ones so I can’t say for sure. Try very hard not to. sit in the middle. I’m small and the guy next to me played games all night and didn’t care that he continually ( with every move) jabbed me with his arm. This was my first flight with Cheap Flights and it was far less convenient than other times I’ve flown overseas.
DinaFlew with United AirlinesORD-LHRJan 2025
Anticipate delays, prepare for long walks through Heathrow to baggage claim or for connections.
KariFlew with British AirwaysORD-LHRMay 2024
Always check to confirm your assistance is in system. No wheelchair waiting for me in London. Had no clue about airport or how to get around. Got lost easy
AaronFlew with American AirlinesORD-LHRDec 2023
Find a flight where you are allowed to choose your seats before the day of boarding for anything international.

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Chicago O'Hare Airport to United Kingdom?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago O'Hare Airport to United Kingdom.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago O'Hare Airport to United Kingdom?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Chicago O'Hare Airport to United Kingdom is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago O'Hare Airport to United Kingdom?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Chicago O'Hare Airport to United Kingdom with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago O'Hare Airport to United Kingdom?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Chicago O'Hare Airport to United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to the United Kingdom?

    The cheapest time of day to fly to the United Kingdom is generally in the evening, when retur flights cost £574 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the afternoon, which is peak travel time and where the average cost of a ticket is £712.

Top tips for finding a cheap flight from Chicago O'Hare Airport to United Kingdom

  • Looking for a cheap flight from Chicago O'Hare Airport to United Kingdom? 25% of our users found tickets from Chicago O'Hare Airport to United Kingdom for the following prices or less: London £304 one-way - £499 round-trip

Reviews of the top 5 airlines flying from O'Hare Intl to the United Kingdom

 
Need help choosing which airline to fly with from O'Hare Intl to the United Kingdom? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9044 reviews
7.7Boarding
7.1Entertainment
6.6Food
7.3Comfort
8.1Crew
Airline reviews

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

10.0 ExcellentDenis, Nov 2025ORD - YOW
Read more United Airlines reviews

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

Customer service was excellent! The app was terrible, tried several times to check in without success! But the young lady that checked us in was absolutely terrific and helpful.

NOTE. Aer Lingus does not accept American Express. I was denied boarding because I could not pay the fee for my oversized bag. I did not have another credit or debit card. Moreover, at CDG, I needed to check my bag at one location, go to another location to check my oversized bag and a THIRD location to pay for my oversized bag. Hence, once I was denied boarding, my bags were already en route to the plane. To retrieve them I needed to go to a FOURTH location in another part of the terminal. Last, Aer Lingus will not reimburse me for any portion of my ticket. I lost $1000 bc Aer Lingus doesn’t accept American Express at the CDG counter even though I paid for my ticket through the Kayak link with Amex. Kayak should remedy this situation if they want to continue to partner with Aer Lingus.

Fast and sensible boarding was absolutely amazing. But extortionate wifi and seats that barely moved, making me unable to sleep, didn't do a lot of favors.

I liked the front row seats. A lot of leg room. The check-in window needs to be longer

My flights with Aer Lingus were very good and I will definitely fly with them. Again in future trips to Ireland and Scotland.

Too hot. Asked for an extra glass of water and was ignored. Asked to sit in empty seats that were open because it was so hot and crowded and was denied and the seats were empty the entire flight

Terrible leg room - I’m 5’3” and my knees were touching the seat in front of me. When the person sitting in front of me leaned back, there was about 15 inches of space between my head and the TV screen which made it awkward to view movies. Last year they had decent food, but this year the only tasty item on the trip was dessert.

The flight was delayed leaving Philadelphia due to “catering” and consequently arrived in Dublin some 75 minutes later than scheduled. Consequently this caused me to miss my connecting flight to Glasgow and I had to spend the night in Dublin.

The flight from Cincinnati to Philadelphia was satisfactory and uneventful.

It was truly a horrible flight. We were delayed almost 2 hours. The seats were so tiny, my legs were hurting the entire flight. When i finally made it to Ireland i missed my connecting flight because we left Newark late. I will most likely never fly Aer Lingus again

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

It was too cold in the plane my feet froze

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

It was good. The air plane is clean and staff were friendly.

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

Everything sucked. No food, one small glass of water, a tiny coffee, 5.5 hour delay with no customer service. Would never recommend flying them.

The staff was very nice and helpful. Some of the best crew I have met.

Suddenly, I don't find my flight back on the app Help Ticket 0757345716866 Hoeflich Flight back Sunday ib5333 Ib2629 Ib4268

Was all good.l including a sofdrink. AA improved significantly. There was no entertainment.

I've taken British Airways before and it has been great. On this trip to Spain and Portugal we had two BA flights. On both flights we were taken by bus from the terminal out to the plane on the tarmac. There were many older folks on these flights, and to ask people in their 70s to lug their carry-on and personal items up the long mobile staircase to the plane entrance, is very disturbing. I won't be taking British Airways in the future. Many people on these flights were very unhappy.

The food on the flight was of marginal quality. Small bits of chicken, instant mashed potatoes and some carrots. The rolls were very dry, nearly inedible. The seats were quite small and didn’t allow for any shifting of position during the flight. There was limited leg room.0

The seats are so small that you can barely move at all. Don't try to eat with utensils in your seat either - you will elbow your neighbor in the face. Miserably small and I swear they are shrinking every time I fly. Food was meh (per usual), but at least there is free alcohol on an overseas flight. Doesn't make up for sitting in a torture chamber while hurtling through the air with hundreds of fussy people, but it's something. Entertainment options (movies, shows) are okay, nothing special, but at least there are screens, because most of the seats in these large planes do not have adjustable lighting - or air control - that you can get to, it's too high to reach - which makes reading impossible. Zero stars, AA.

Terrible customer service. I booked business class and the counter agent didn’t bother asking me about any choice or preferred seat, basically assigned me that last seat and couldn’t even answer if it was a business class seat. Also iberia lost my suitcase on my flight from JFK to MAD with the layover in BCN. Useless customer service at the counter. Thank goodness I happened to check the baggage claim area of the next flight in…there it was.

Disaster. Downgraded. Zero apology. No effort or coordination between gate and crew. Awful seat blocked by door emergency slide box. Iberia is a mess. App never works. Avoid this airline.

We departed late but made up most of the time in flight. Our ticket was pure economy, so it wasn’t anything fancy; however, I heard that we arrived in Madrid at the exact same time that First Class passengers arrived! Overall, our experience was similar to what we had on other American Airlines transatlantic flights - good value at a reasonable price. We were even able to get our carry-on baggage onto the plane without needing to gate check it.

The crew were friendly and helpful. Iberia lost our luggage on arrival, Friday and we didn't get it until Sunday at 10:00 p.m. local Malaga time. I also paid $382.80 for seat assignments but two out out of the four were not together. Iberia mentioned that it was because the plane was delayed in Madrid before our flight began in LAX. They should compensate us half of my payment.

Smooth trip no turbulence which is always a bonus for me lol! In cattle class so an element of being a bit squished (but not as bad as other shorter haul airlines) smaller plane than the one we flew out on and entertainment system wasn’t as modern but still definitely passed the time. Lovely crew x

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

The flat beds. Other than that, the place was not clean.

Moved me away from my family and refused to fix it.

I have always been pleased with their service. Would not change a thing

Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .

Economy seats felt more cramped than other flights we have taken.7 hr, painful sitting hours 6 and 7. Web site difficult to deal with. Originally put in for 1 special meal due to type 2. Meal was awful. Tried to change selection to standard for return flight, on app and website, unable to complete that action.

I was sleeping during dinner service, no one bothered to offer meal later, I remained hungry….until I got a morning sandwich!

Everything you need to know for your flight from O'Hare Intl to the United Kingdom

Information on your arrival and departure airports