£212 Find Cheap Flights from London Gatwick Airport to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Gatwick to Illinois departing on 13/5. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Illinois, as well as popular online travel agencies
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Best Illinois Flight Deals from Gatwick

Cheapest return prices found by our users on KAYAK in the last 72 hours

Chicago
Chicago1 stop£365
Peoria
Peoria2 stops£1,201
Chicago
Chicago1 stop£365
Peoria
Peoria2 stops£1,201

Cheap Flight Deals from Gatwick to Illinois (LGW-USIL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Gatwick to Illinois 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.

Recent return flight deals from Gatwick to Illinois

Recommended return flight deals departing in the coming months from the most popular airlines that fly from Gatwick to Illinois.
Discover the best prices for you by selecting your travel dates on KAYAK.
Icelandair Logo
15:40 - 21:15LGW-ORD
11h 35m1 stop
Icelandair Logo
19:25 - 14:35ORD-LGW
13h 10m1 stop
£365Icelandair
Find Deal
Thu, 11 Sep - Mon, 15 Sep
Icelandair Logo
15:40 - 21:15LGW-ORD
11h 35m1 stop
Icelandair Logo
19:25 - 14:40ORD-LGW
13h 15m1 stop
£381Icelandair
Find Deal
Fri, 12 Sep - Fri, 26 Sep
 Logo
13:40 - 07:27LGW-ORD
23h 47m2 stops
 Logo
13:03 - 10:00ORD-LGW
14h 57m1 stop
Tue, 20 May - Fri, 11 Jul
 Logo
14:00 - 23:32LGW-ORD
15h 32m1 stop
 Logo
13:03 - 10:00ORD-LGW
14h 57m1 stop
Sat, 17 May - Tue, 29 Jul
SWISS Logo
18:35 - 12:45LGW-ORD
24h 10m1 stop
SWISS Logo
19:05 - 17:50ORD-LGW
16h 45m1 stop
£510SWISS
Find Deal
Tue, 13 May - Sun, 18 May
SWISS Logo
18:35 - 15:55LGW-ORD
27h 20m1 stop
SWISS Logo
19:05 - 17:50ORD-LGW
16h 45m1 stop
£521SWISS
Find Deal
Wed, 14 May - Sun, 18 May
Virgin Atlantic Logo
12:00 - 20:21LGW-ORD
14h 21m2 stops
Virgin Atlantic Logo
07:00 - 10:00ORD-LGW
21h 00m1 stop
£544Virgin Atlantic
Find Deal
Fri, 30 May - Mon, 2 Jun
Virgin Atlantic Logo
12:00 - 23:58LGW-ORD
17h 58m2 stops
Virgin Atlantic Logo
07:00 - 10:00ORD-LGW
21h 00m1 stop
£545Virgin Atlantic
Find Deal
Thu, 29 May - Mon, 2 Jun
British Airways Logo
11:35 - 23:23LGW-EVV
17h 48m2 stops
British Airways Logo
17:09 - 20:00EVV-LGW
20h 51m2 stops
£1,415British Airways
Find Deal
Sat, 14 Jun - Sat, 21 Jun
British Airways Logo
11:35 - 23:23LGW-EVV
17h 48m2 stops
British Airways Logo
17:00 - 20:00EVV-LGW
21h 00m2 stops
£1,535British Airways
Find Deal
Mon, 23 Jun - Thu, 26 Jun
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KAYAK's insights & trends for Gatwick to Illinois flights

Get data-powered insights and trends into flights from Gatwick to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from London Gatwick Airport to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Illinois is generally in the morning, when retur flights cost £673 on average. Morning departures are around 9% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally at night, which is peak travel time and where the average cost of a ticket is £824.

What is the cheapest month to fly from London Gatwick Airport to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Gatwick Airport to Illinois, 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 London Gatwick Airport to Illinois is January, when tickets cost £394 (return) on average. On the other hand, the most expensive months are March and August, when the average cost of return tickets is £1,040 and £776 respectively.

What’s the cheapest day of the week to fly from London Gatwick Airport to Illinois?

The average price of all round-trip flights from London Gatwick Airport to Illinois clicked on KAYAK for each day over the last 12 months.
For London Gatwick Airport to Illinois, Thursday is the cheapest day to fly on average and Monday is the most expensive. Flying from Illinois back to London Gatwick Airport, the best deals are generally found on Thursday, with Sunday being the most expensive.

How far in advance should I book a flight from London Gatwick Airport to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Gatwick Airport to Illinois, 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 London Gatwick Airport to Illinois, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know - Cheap tickets from London Gatwick Airport to Illinois

Low season

January

High season

September

Cheapest flight

£212
Best time to beat the crowds (31% less expensive on average)
Most popular time to fly and prices are also 9% lower on average.
Flight from London Gatwick Airport to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from London Gatwick Airport to Illinois?

    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 London Gatwick Airport to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Gatwick Airport to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London Gatwick Airport to Illinois 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 London Gatwick Airport to Illinois?

    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 London Gatwick Airport to Illinois 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 London Gatwick Airport to Illinois?

    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 London Gatwick Airport to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airlines flying from Gatwick to Illinois

 
See real verified KAYAK customer reviews for airlines flying from London to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Gatwick to Illinois? 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.
7.0
IcelandairOverall score based on 487 reviews
7.1Entertainment
7.1Boarding
6.3Food
8.0Crew
7.0Comfort
Airline reviews

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

10.0 ExcellentJames, Apr 2025MAN - KEF
Read more Icelandair reviews

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

No food was served for 7.5 hrs flight. When our flight changed to other airlines due to wether issue, our seats booked with no checked in luggage when I already payed for. We end up to pay 90 euro per suitcase.

The flights were in time and the bags arrived. well done

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

Booked with Kayak… Economy Class it said. I had filtered for 1 checked bag. Get to boarding and it says I have Economy Light w/ no checked bags. $136 each way for baggage now. Do not use smartfares.com. Very misleading and a terrible start to this trip.

Overall good. I was surprised how easy it was to get from plain to plain in such a short time. Food choices were not so great and quite expensive. Entertainment was ok. Flights were smooth.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Horrible. The flight was delayed by over 3 hours but updates were barely provided. Boarding started 3 hours late then stopped because their system crashed. So now, passengers were standing for 15 minutes in the open waiting to get boarding passes scanned and get on a bus. Duty-free closed around 4-4:30. Only 1 food outlet was open and it was super slow and busy since it was serving passengers from multiple flights. So a number of passengers couldn't buy meals at the terminal. Since the flight was delayed by over 3 hours, we could have been offered snacks on-board. Nothing. The seats barely reclined. In-flight entertainment options were pitiful. Overall, a miserable experience. Never flying on Icelandair ever again. :(

Boarding is a mess. They never check group # so lots of people crowding in. Comfortable seats this flight. I had an empty seat next to me, very convenient. Food was really not good, but I was starved. The pizza snack thing was horrible. Crew was grand. They really make it enjoyable.

Crew very helpful and friendly. Food is so so. Main meal is not always the best. Did have a choice of a snack part way which was either a cookie, corn snack, or similar. Second kind of meal was basically like a pizza pastry that really wasn’t a favorite but probably a European snack? Screens and selections of movies, tv and such were good. No WI-Fi unless you buy so no free texting or such on the long flight but I think that might be any overseas flight.

Flight Attendant Karen Lynn was an absolute delight. She assisted in every portion of the services provided throughout the flight, aided with any and all concerns expressed by passengers, and even helped comfort an upset child who was one of five of a traveling family. This quality of service is what keeps me coming back to American. Thank you!

The airplane was old. Some things didn’t work out of middle seat was broken. The rest was OK.

The worst, flight cancelled because the aircraft was not full. Heathrow ground crew totally not helpful and arrogant. Lady proposed us flight with 40min layover instead of direct and said it is our problem of course she was unable to do anything as everything was beyond her control she claimed. after calling on hotline another flight was booked. Flight was cancelled last second so we could not take direct from Zurich but we had to stay overnight in London.

Food was terrible , crew were excellent , IFE was dire . Overall comfortable seat and cabin. Nothing special .

If my tv wasn’t broken and I wasn’t in a seat that didn’t allow for sleeping

Delayed flight due to lack of crew caused me to miss my connection

Please make sure the number of seats matches the number of overhead bins and passengers don't carry on more than one bag.

Seating is tight if you don’t upgrade. Food was decent. Boarding and unboarding was efficient. Smooth flight. Could make upgrades more affordable

Everything you need to know for your flight from Gatwick to Illinois

Information on your arrival and departure airports

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