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Cheap flights from London Gatwick Airport to Illinois from £255

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 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — ORD
1 Jul — 8 Jul1
1 adult

Cheap flight deals from Gatwick to Illinois

Keep the following information in mind while searching for Gatwick to Illinois flight deals. Data was last updated 26 June 2025.

Round-trip from

£409

One-way from

£255

Popular in

August

Cheapest in

February

Average price

£529
26/9-5/10
  • 26/9-5/10
  • 3 total stops
  • 51h 24m total
  • London to Illinois
Search Deals
24/9
  • 24/9
  • 2 total stops
  • 24h 44m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£53 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find 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 26 June 2025.

Fri 26/913:00LGW - ORD
2 stops36h 17mMultiple Airlines
Sun 5/1013:03ORD - LGW
1 stop15h 07mMultiple Airlines
Deal found 24/6£409
Sat 22/1118:40LGW - ORD
1 stop24h 05mSWISS
Tue 2/1219:05ORD - LGW
1 stop16h 45mSWISS
Deal found 24/6£412
Sat 23/816:30LGW - ORD
1 stop29h 45mTAP AIR PORTUGAL
Mon 1/918:10ORD - LGW
1 stop15h 25mTAP AIR PORTUGAL
Deal found 25/6£416
Fri 31/1011:55LGW - ORD
1 stop11h 25mIcelandair
Sat 8/1118:30ORD - LGW
1 stop10h 25mIcelandair
Deal found 26/6£417
Tue 25/1111:20LGW - ORD
2 stops40h 19mAmerican Airlines
Sat 29/1118:50ORD - LGW
2 stops54h 40mAmerican Airlines
Deal found 25/6£421
Mon 18/812:00LGW - ORD
2 stops26h 04mDelta
Mon 1/917:00ORD - LGW
2 stops35h 00mDelta
Deal found 24/6£484
Sun 17/812:00LGW - ORD
1 stop15h 53mVirgin Atlantic
Tue 2/913:25ORD - LGW
1 stop14h 35mVirgin Atlantic
Deal found 24/6£485
Thu 9/1012:20LGW - ORD
1 stop14h 37mFinnair
Mon 13/1009:00ORD - LGW
1 stop17h 35mFinnair
Deal found 26/6£493
Tue 1/712:10LGW - ORD
1 stop25h 45mJetBlue
Mon 28/708:40ORD - LGW
1 stop18h 55mJetBlue
Deal found 24/6£524
Wed 3/912:40LGW - MDW
1 stop25h 39mMultiple Airlines
Thu 18/909:15MDW - LGW
1 stop16h 40mMultiple Airlines
Deal found 24/6£631
Thu 3/714:00LGW - STL
2 stops33h 04mMultiple Airlines
Sat 12/710:45STL - LGW
1 stop17h 15mMultiple Airlines
Deal found 25/6£632
Mon 18/812:00LGW - STL
2 stops17h 23mDelta
Tue 2/910:45STL - LGW
2 stops17h 15mDelta
Deal found 24/6£780

Cheapflights Fare Finder

Customise 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 858,174 searches. Data last updated 26 June 2025.
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 26/9

13:00-19:17

2 stops36h 17m

Chicago O'Hare Intl

Sun 5/10

13:03-10:10

1 stop15h 07m

£409

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Sat 22/11

18:40-12:45

1 stop24h 05m

Chicago O'Hare Intl

Tue 2/12

19:05-17:50

1 stop16h 45m

£412

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Sat 23/8

16:30-16:15

1 stop29h 45m

Chicago O'Hare Intl

Mon 1/9

18:10-15:35

1 stop15h 25m

£416

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Fri 31/10

11:55-18:20

1 stop11h 25m

Chicago O'Hare Intl

Sat 8/11

18:30-10:55

1 stop10h 25m

£417

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Tue 25/11

11:20-21:39

2 stops40h 19m

Chicago O'Hare Intl

Sat 29/11

18:50-07:30

2 stops54h 40m

£421

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Mon 18/8

12:00-08:04

2 stops26h 04m

Chicago O'Hare Intl

Mon 1/9

17:00-10:00

2 stops35h 00m

£484

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Sun 17/8

12:00-21:53

1 stop15h 53m

Chicago O'Hare Intl

Tue 2/9

13:25-10:00

1 stop14h 35m

£485

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 9/10

12:20-20:57

1 stop14h 37m

Chicago O'Hare Intl

Mon 13/10

09:00-08:35

1 stop17h 35m

£493

LondonChicago

LGW - MDW

LGWMDW

London Gatwick

Wed 3/9

12:40-08:19

1 stop25h 39m

Chicago Midway

Thu 18/9

09:15-07:55

1 stop16h 40m

£631

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Tue 22/7

14:00-10:29

1 stop26h 29m

Lambert-St Louis

Fri 25/7

10:47-10:00

2 stops41h 13m

£643

Flights are sorted by cheapest return flights first.

Deals found on 25/6

Showing 1-10 of 25 results
1
2
3

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 return 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, January is the cheapest month in which you can book a flight from London Gatwick Airport to Illinois (average of £595). Flying from London Gatwick Airport to Illinois in July is currently the most expensive (average of £843). 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.

What is the cheapest time of day to fly from LGW to IL?

Find hourly flight availability from Gatwick to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 June 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Gatwick Airport to Illinois as you normally would.

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 26 June 2025.
See what other customers who have flown with Delta, KLM, andAir Transat from London Gatwick Airport to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,963 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very Good
7,963 reviews
Delta
8.0
Very Good
7,963 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,365 reviews
Delta
8.0
Very Good
7,963 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Transat
7.8
Good
401 reviews
Delta
8.0
Very Good
7,963 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,298 reviews
Delta
8.0
Very Good
7,963 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,649 reviews
Delta
8.0
Very Good
7,963 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What are the cheapest airlines to fly from London Gatwick Airport to Illinois one-way?

    One-way options have recently been found by users for as low as £390 on Icelandair. Other airlines that offer cheap prices include Iberia from £436 and Air Transat from £445 one-way.

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

    The most popular route from London Gatwick Airport to Illinois is London Gatwick - Chicago O'Hare Intl. You may also consider London Gatwick - Lambert-St Louis or 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 holiday 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, January is the cheapest month in which you can book a flight from London Gatwick Airport to Illinois (average of £595). Flying from London Gatwick Airport to Illinois in July is currently the most expensive (average of £843). 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 858,174 searches. Data last updated 26 June 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£309Average£495FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Gatwick to Illinois?

When you search for this flight from Gatwick to Illinois, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Gatwick to Illinois?

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Can Cheapflights find flights from Gatwick to Illinois with no change fees?

Certainly. Search results for flights to Illinois from Gatwick shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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