£337 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 30/5. 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
1 adult, Economy, 0 bags

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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Cheap Flights from Gatwick to Illinois

Cheapest return prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago2 stops£517
Chicago
Chicago2 stops£517

Book Cheap Gatwick to Illinois Plane Tickets

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Gatwick to Illinois

fre, 5 jun - sön, 14 jun
Multiple Airlines Logo
16:25 - 18:15
LGW
-
ORD
31h 50m
2 stops
Multiple Airlines Logo
19:25 - 08:30
ORD
-
LGW
31h 05m
3 stops
£517Multiple Airlines
ons, 7 okt - mån, 12 okt
Icelandair Logo
15:40 - 21:25
LGW
-
ORD
11h 45m
1 stop
Icelandair Logo
19:25 - 14:40
ORD
-
LGW
13h 15m
1 stop
£517Icelandair
fre, 5 jun - sön, 14 jun
Multiple Airlines Logo
18:30 - 18:15
LGW
-
ORD
29h 45m
2 stops
Multiple Airlines Logo
19:25 - 08:30
ORD
-
LGW
31h 05m
3 stops
£521Multiple Airlines
tis, 16 jun - ons, 24 jun
Multiple Airlines Logo
18:00 - 21:25
LGW
-
ORD
33h 25m
2 stops
Multiple Airlines Logo
19:25 - 21:45
ORD
-
LGW
20h 20m
2 stops
£523Multiple Airlines
tors, 14 maj - ons, 27 maj
Multiple Airlines Logo
08:40 - 19:15
LGW
-
ORD
16h 35m
1 stop
Multiple Airlines Logo
21:00 - 20:10
ORD
-
LGW
17h 10m
1 stop
£524Multiple Airlines
ons, 9 sep - ons, 23 sep
Icelandair Logo
15:40 - 21:25
LGW
-
ORD
11h 45m
1 stop
Icelandair Logo
19:25 - 14:40
ORD
-
LGW
13h 15m
1 stop
£525Icelandair
mån, 11 maj - mån, 25 maj
Multiple Airlines Logo
08:40 - 19:15
LGW
-
ORD
16h 35m
1 stop
Multiple Airlines Logo
21:00 - 17:55
ORD
-
LGW
14h 55m
1 stop
£528Multiple Airlines
mån, 1 jun - sön, 7 jun
JetBlue Logo
12:20 - 08:00
LGW
-
ORD
25h 40m
1 stop
JetBlue Logo
08:49 - 09:35
ORD
-
LGW
18h 46m
1 stop
£531JetBlue
mån, 14 sep - mån, 28 sep
Icelandair Logo
15:40 - 18:15
LGW
-
ORD
32h 35m
1 stop
Icelandair Logo
19:25 - 14:40
ORD
-
LGW
13h 15m
1 stop
£536Icelandair
lör, 30 maj - tors, 11 jun
Delta Logo
10:25 - 21:44
LGW
-
EVV
17h 19m
2 stops
Delta Logo
10:08 - 09:25
EVV
-
LGW
17h 17m
2 stops
£7,480Delta
Booking Insights

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.

How much is a return flight from London Gatwick Airport to Illinois?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London Gatwick Airport to Illinois departing in June.

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 December, when tickets cost £172 (return) on average. On the other hand, the most expensive months are July and March, when the average cost of return tickets is £509 and £424 respectively.

Find deals

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

Low seasonNovember
Cheapest flight£337
Best time to beat the crowds (41% less expensive on average)
Most popular time to fly (40% more expensive on average)
Flight from London Gatwick Airport to St. Louis

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.

Reviews of the top airline 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 646 reviews
7.2Boarding
8.0Crew
6.9Comfort
6.9Entertainment
6.2Food
Airline reviews

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

10.0 ExcellentAnonymous, Apr 2026
KEF - SEA
Read more Icelandair reviews

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

I am not going to fillo this out for each leg of my trip. My first review holds for the experience

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

The most uncomfortable seat i’ve ever had on a flight

Waiting area on top of stairs before Boarding the bus wasn’t great. Took a long time to load the bus to gate.

The real reason why the flying experience with Icelandair ---was mediocre was because of not being able to enter DC airspace yesterday evening. This obviously was out of your control and do realize this is a safety issue. I did notice---that everything was being done to get us to Washington Dulles and we did arrive at Dulles SAFELY with just a 4 hour delay. Thank you!

Iceland Air severely damaged a checked bag. Additionally, the gate agent caused issues for many passengers who had standard-sized onboard bags that would have passed inspection by any other airline.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

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

Information on your arrival and departure airports

London Gatwick Airport (LGW)