$348 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 1/23. 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

Mon, May 4 - Thu, May 14
Icelandair Logo
3:40 pm - 6:15 pm
LGW
-
ORD
32h 35m
1 stop
Icelandair Logo
7:25 pm - 2:40 pm
ORD
-
LGW
13h 15m
1 stop
$535Icelandair
Wed, Feb 18 - Sun, Feb 22
SWISS Logo
6:40 pm - 4:20 pm
LGW
-
ORD
27h 40m
1 stop
SWISS Logo
6:50 pm - 5:50 pm
ORD
-
LGW
17h 00m
1 stop
$539SWISS
Sat, Feb 7 - Wed, Feb 18
TAP AIR PORTUGAL Logo
4:35 pm - 2:45 pm
LGW
-
ORD
28h 10m
1 stop
TAP AIR PORTUGAL Logo
7:10 pm - 3:05 pm
ORD
-
LGW
13h 55m
1 stop
$544TAP AIR PORTUGAL
Fri, Jan 30 - Mon, Feb 2
SWISS Logo
6:40 pm - 4:20 pm
LGW
-
ORD
27h 40m
1 stop
SWISS Logo
6:50 pm - 5:50 pm
ORD
-
LGW
17h 00m
1 stop
$545SWISS
Mon, Mar 2 - Mon, Mar 9
Multiple Airlines Logo
2:00 pm - 11:22 am
LGW
-
ORD
27h 22m
2 stops
Multiple Airlines Logo
12:44 pm - 10:00 am
ORD
-
LGW
16h 16m
1 stop
$546Multiple Airlines
Sat, Feb 28 - Sat, Mar 7
Icelandair Logo
11:55 am - 5:20 pm
LGW
-
ORD
11h 25m
1 stop
Icelandair Logo
6:30 pm - 10:55 am
ORD
-
LGW
10h 25m
1 stop
$547Icelandair
Sat, Feb 7 - Wed, Feb 18
TAP AIR PORTUGAL Logo
4:35 pm - 2:45 pm
LGW
-
ORD
28h 10m
1 stop
TAP AIR PORTUGAL Logo
7:10 pm - 9:50 am
ORD
-
LGW
32h 40m
1 stop
$551TAP AIR PORTUGAL
Fri, Feb 20 - Wed, Mar 4
Multiple Airlines Logo
2:00 pm - 12:27 am
LGW
-
STL
16h 27m
1 stop
Multiple Airlines Logo
8:17 pm - 6:00 am
STL
-
LGW
51h 43m
2 stops
$558Multiple Airlines
Mon, Apr 13 - Thu, Apr 23
Air France Logo
10:25 am - 10:29 pm
LGW
-
MDW
18h 04m
2 stops
Air France Logo
6:34 pm - 4:00 pm
MDW
-
LGW
15h 26m
2 stops
$946Air France
Mon, Apr 13 - Thu, Apr 23
Air France Logo
10:25 am - 10:29 pm
LGW
-
MDW
18h 04m
2 stops
Air France Logo
6:34 pm - 4:00 pm
MDW
-
LGW
15h 26m
2 stops
$1,101Air France
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 November, when tickets cost $443 (return) on average. On the other hand, the most expensive months are March and August, when the average cost of round-trip tickets is $1,470 and $1,045 respectively.

Good to know

Low seasonJanuary
Cheapest flight$344
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 36% 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.

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.
7.1
IcelandairOverall score based on 596 reviews
8.0Crew
7.2Boarding
7.0Comfort
7.0Entertainment
6.2Food
Airline reviews

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

8.0 ExcellentDetlef, Dec 2025
DEN - BER
Read more Icelandair reviews

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

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

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

Information on your arrival and departure airports