$487 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 3/31. 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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Flight Deals

Book Cheap Gatwick to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip 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 round-trip flight deals from Gatwick to Illinois

Wed, Jan 21 - Fri, Jan 30
Multiple Airlines Logo
8:50 am - 5:20 pmLGW-ORD
14h 30m2 stops
Multiple Airlines Logo
6:30 pm - 9:05 pmORD-LGW
20h 35m3 stops
$588Multiple Airlines
Find Deal
Wed, Jan 21 - Fri, Jan 30
Multiple Airlines Logo
8:50 am - 5:20 pmLGW-ORD
14h 30m2 stops
Multiple Airlines Logo
12:44 pm - 10:00 amORD-LGW
15h 16m1 stop
$592Multiple Airlines
Find Deal
Wed, Jan 21 - Fri, Jan 30
Multiple Airlines Logo
8:50 am - 5:20 pmLGW-ORD
14h 30m2 stops
Multiple Airlines Logo
4:38 pm - 3:45 pmORD-LGW
17h 07m2 stops
$597Multiple Airlines
Find Deal
Mon, Jan 26 - Mon, Feb 2
Multiple Airlines Logo
2:00 pm - 1:13 pmLGW-ORD
29h 13m1 stop
Multiple Airlines Logo
4:38 pm - 8:35 pmORD-LGW
21h 57m2 stops
$598Multiple Airlines
Find Deal
Thu, Jan 15 - Fri, Jan 23
Multiple Airlines Logo
11:55 am - 10:42 pmLGW-ORD
16h 47m2 stops
Multiple Airlines Logo
8:43 pm - 10:55 amORD-LGW
32h 12m3 stops
$599Multiple Airlines
Find Deal
Thu, Jan 29 - Sat, Jan 31
British Airways Logo
12:30 pm - 2:45 pmLGW-ORD
32h 15m1 stop
British Airways Logo
6:00 pm - 7:30 amORD-LGW
31h 30m1 stop
$600British Airways
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Thu, Jan 15 - Fri, Jan 23
Multiple Airlines Logo
8:50 am - 5:20 pmLGW-ORD
14h 30m2 stops
Multiple Airlines Logo
4:38 pm - 8:20 amORD-LGW
33h 42m2 stops
$601Multiple Airlines
Find Deal
Tue, Jan 27 - Fri, Feb 6
British Airways Logo
11:45 am - 5:47 pmLGW-ORD
36h 02m2 stops
British Airways Logo
6:00 pm - 7:30 amORD-LGW
31h 30m1 stop
$606British Airways
Find Deal
Thu, Jan 22 - Mon, Jan 26
American Airlines Logo
11:20 am - 6:34 pmLGW-STL
37h 14m2 stops
American Airlines Logo
10:17 am - 9:00 amSTL-LGW
16h 43m2 stops
$679American Airlines
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Sun, May 10 - Tue, May 19
Iberia Logo
8:40 pm - 11:24 pmLGW-STL
32h 44m2 stops
Iberia Logo
11:14 am - 10:55 amSTL-LGW
17h 41m2 stops
$753Iberia
Find Deal
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.

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 $528 (return) on average. On the other hand, the most expensive months are March and August, when the average cost of round-trip tickets is $1,316 and $1,045 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.

Your flight ticket price will generally be cheaper if you fly to Illinois on a Sunday and more expensive on a Thursday. On your return trip to London Gatwick Airport, you should consider flying back on a Saturday, and avoid Fridays for better deals.

Good to know

Low seasonJune
Cheapest flight$487
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 33% increase in price.
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 travelers 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 round-trip 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.

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

    The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $713 on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $773.

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 584 reviews
6.2Food
7.0Entertainment
6.9Comfort
7.1Boarding
8.0Crew
Airline reviews

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

2.0 MediocrePei, Nov 2025CDG - KEF
Read more Icelandair reviews

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Never again. Terrible hospitality and human decency for an international flight. No food, no snacks, no beverages, blankets, pillows, limited entertainment. Tiny seats without any cushion and some do not even recline. I was shocked that they did not charge for seat belts. Never in my life have I witness asking for "spare change" for charity before landing on both legs of the flight. Icelandair can contribute on their own to said, so called, children's charity with the money saved from providing 3 centimeters of tea and water to hungry and dehydrated passengers.

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

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.

They had a 4 hour delay and left my luggage in Iceland and it didn’t arrive in Portland until 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

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

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.

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

Information on your arrival and departure airports