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$338+ Cheap flights from Gatwick (LGW) to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — ORD
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Gatwick to Illinois

Cheapest flights from Gatwick to Illinois
Explore the most affordable flight options available from Gatwick to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This flugladen.de deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/54:00 pm
LGW
-
ORD
1 stop29h 25m
TAP AIR PORTUGAL
Wed 2/117:10 pm
ORD
-
LGW
1 stop13h 55m
TAP AIR PORTUGAL
Deal found 1/21$529
This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/173:40 pm
LGW
-
ORD
1 stop11h 45m
Icelandair
Tue 4/217:25 pm
ORD
-
LGW
1 stop13h 15m
Icelandair
Deal found 1/21$530
This Gotogate deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/173:40 pm
LGW
-
ORD
1 stop32h 35m
Icelandair
Wed 9/3010:25 pm
ORD
-
LGW
1 stop10h 15m
Icelandair
Deal found 1/20$533
This Ovago deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/244:35 pm
LGW
-
ORD
1 stop28h 10m
TAP AIR PORTUGAL
Fri 2/68:15 pm
ORD
-
LGW
1 stop13h 30m
TAP AIR PORTUGAL
Deal found 1/20$535
This Tripair deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Tripair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2911:55 am
LGW
-
ORD
1 stop11h 25m
Icelandair
Wed 2/116:30 pm
ORD
-
LGW
1 stop10h 25m
Icelandair
Deal found 1/21$537
This Gotogate deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/511:55 am
LGW
-
ORD
1 stop11h 25m
Icelandair
Mon 2/96:30 pm
ORD
-
LGW
1 stop10h 25m
Icelandair
Deal found 1/21$538
This Trip.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/244:35 pm
LGW
-
ORD
1 stop28h 10m
TAP AIR PORTUGAL
Wed 2/117:10 pm
ORD
-
LGW
1 stop32h 40m
TAP AIR PORTUGAL
Deal found 1/21$540
This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/52:00 pm
LGW
-
MDW
1 stop35h 52m
Multiple Airlines
Mon 2/91:00 pm
MDW
-
LGW
1 stop15h 00m
Multiple Airlines
Deal found 1/21$542
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/232:00 pm
LGW
-
ORD
1 stop31h 52m
Multiple Airlines
Thu 2/265:58 pm
ORD
-
LGW
1 stop30h 02m
Multiple Airlines
Deal found 1/20$543
This Booking.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/83:40 pm
LGW
-
ORD
1 stop32h 35m
Icelandair
Sun 10/1110:25 pm
ORD
-
LGW
1 stop10h 15m
Icelandair
Deal found 1/20$545
This Icelandair deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1111:55 am
LGW
-
ORD
1 stop11h 25m
Icelandair
Wed 3/46:30 pm
ORD
-
LGW
1 stop10h 25m
Icelandair
Deal found 1/19$548
This Icelandair deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/71:00 pm
LGW
-
ORD
1 stop11h 15m
Icelandair
Mon 5/117:25 pm
ORD
-
LGW
1 stop13h 15m
Icelandair
Deal found 1/21$549

Find flight deals from Gatwick to Illinois

Keep the following information in mind while searching for Gatwick to Illinois flight deals. Data was last updated January 21, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$538
(Gotogate)

One-way from

$338
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$624
Provider with most accurate pricing for London (LON)-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Chicago (CHI) flights.
Search Deals
From London Gatwick to Illinois
Search Deals
One-way flight from London Gatwick to Illinois
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($119 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Gatwick to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from London Gatwick Airport to Illinois that are best for you.

Fly from

Gatwick

Fly to

Illinois

Route

Depart

Return

Price

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Fri 4/17

3:40 pm-9:25 pm

1 stop11h 45m

Chicago O'Hare Intl

Tue 4/21

7:25 pm-2:40 pm

1 stop13h 15m

$530

LondonChicago

LGW - MDW

LGWMDW

London Gatwick

Thu 2/5

2:00 pm-7:52 pm

1 stop35h 52m

Chicago Midway

Mon 2/9

1:00 pm-10:00 am

1 stop15h 00m

$542

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 2/11

11:55 am-5:20 pm

1 stop11h 25m

Chicago O'Hare Intl

Wed 3/4

6:30 pm-10:55 am

1 stop10h 25m

$551

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 5/27

3:40 pm-9:25 pm

1 stop11h 45m

Chicago O'Hare Intl

Sun 5/31

10:25 pm-2:40 pm

1 stop10h 15m

$589

LondonChicago

LGW - MDW

LGWMDW

London Gatwick

Wed 3/4

1:00 pm-4:16 pm

2 stops33h 16m

Chicago Midway

Wed 3/25

11:19 am-10:00 am

1 stop17h 41m

$599

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Sat 2/7

10:10 am-2:45 pm

2 stops34h 35m

Chicago O'Hare Intl

Wed 2/18

7:10 pm-3:05 pm

1 stop13h 55m

$611

LondonChicago

LGW - MDW

LGWMDW

London Gatwick

Mon 2/2

2:00 pm-12:05 pm

2 stops28h 05m

Chicago Midway

Fri 2/6

1:00 pm-10:00 am

1 stop15h 00m

$658

LondonChicago

LGW - MDW

LGWMDW

London Gatwick

Thu 3/5

2:00 pm-1:08 pm

1 stop29h 08m

Chicago Midway

Thu 3/12

7:30 am-8:40 pm

2 stops32h 10m

$659

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 4/16

2:00 pm-11:12 pm

1 stop15h 12m

Chicago O'Hare Intl

Sun 4/19

7:25 pm-7:20 pm

2 stops17h 55m

$660

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 2/4

5:15 pm-2:55 pm

2 stops27h 40m

Chicago O'Hare Intl

Mon 3/2

5:40 pm-7:05 pm

2 stops19h 25m

$662

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 58 results
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Best time to book a flight from Gatwick to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Gatwick with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Gatwick Airport to Illinois

What is the cheapest month to book a flight from London Gatwick Airport to Illinois?

Currently, December is the cheapest month in which you can book a flight from London Gatwick Airport to Illinois (average of $293). Flying from London Gatwick Airport to Illinois in July is currently the most expensive (average of $688). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated January 21, 2026.
Get a feel of what it's like to fly with Icelandair from London Gatwick Airport to Illinois by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.1
Good
602 reviews

Boarding

7.2

Overall

7.1

Entertainment

7.0

Comfort

7.0

Crew

8.0

Food

6.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMS - KEF

We paid a total of 328.00 for specific seats and we were not assigned to any of the seats for which we paid.
Icelandair
7.1
Good
602 reviews
Icelandair
7.1
Good
602 reviews

Boarding

7.2

Overall

7.1

Entertainment

7.0

Comfort

7.0

Crew

8.0

Food

6.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMS - KEF

We paid a total of 328.00 for specific seats and we were not assigned to any of the seats for which we paid.

Related info for your journey

Find useful and relevant information for your journey from Gatwick to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Gatwick Airport to Illinois?

    Airlines like Icelandair, TAP AIR PORTUGAL, and Delta fly from London Gatwick Airport to Illinois in about 11h 45m. The time it takes to get you to your destination can typically vary by up to 22h 50m. London Gatwick Airport and Illinois are separated by a distance of 3960 mi. This flight may include one or multiple stops.

  • What are the most popular routes from London Gatwick Airport to Illinois?

    The most popular flight routes from London Gatwick Airport to Illinois are London Gatwick - Chicago O'Hare Intl, London Gatwick - Lambert-St Louis and London Gatwick - Chicago Midway.

  • Can I find deals for flights from Gatwick to Illinois that include hotel bookings?

    Yes. In addition to deals on Gatwick to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Gatwick to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gatwick to Illinois.

  • Can I find deals for business class flights from Gatwick to Illinois?

    Yes. Cheapflights offers flight deals from Gatwick to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Gatwick Airport to Illinois?

    Currently, December is the cheapest month in which you can book a flight from London Gatwick Airport to Illinois (average of $293). Flying from London Gatwick Airport to Illinois in July is currently the most expensive (average of $688). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Gatwick to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Gatwick to Illinois

Discover the top airline that operate flights from Gatwick to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$453Average$542FlexibilityNo cancel feeOn-time76%

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