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Cheap flights from London Gatwick Airport to Illinois from £260

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 29/5. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — ORD
5 May — 12 May1
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 30 April 2025.

Round-trip from

£416

One-way from

£260

Popular in

August

Cheapest in

February

Average price

£504
Icelandair
  • Icelandair
  • 25/9-29/9
  • 2 total stops
  • 45h 45m total
  • London to Illinois
Search Deals
29/5
  • 29/5
  • 1 total stop
  • 15h 52m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£58 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 30 April 2025.

Thu 25/915:40LGW - ORD
1 stop32h 35mIcelandair
Mon 29/919:25ORD - LGW
1 stop13h 10mIcelandair
Deal found 29/4£416
Tue 20/513:40LGW - ORD
2 stops23h 47mMultiple Airlines
Fri 11/713:03ORD - LGW
1 stop14h 57mMultiple Airlines
Deal found 29/4£438
Fri 30/512:40LGW - MDW
1 stop26h 05mMultiple Airlines
Mon 2/609:40MDW - LGW
2 stops18h 10mMultiple Airlines
Deal found 29/4£461
Tue 13/518:35LGW - ORD
1 stop24h 10mSWISS
Sun 18/519:05ORD - LGW
1 stop16h 45mSWISS
Deal found 29/4£510
Thu 29/512:00LGW - ORD
1 stop15h 31mVirgin Atlantic
Thu 5/611:07ORD - LGW
2 stops16h 53mVirgin Atlantic
Deal found 29/4£545
Wed 18/614:00LGW - STL
1 stop15h 53mMultiple Airlines
Sat 21/617:47STL - LGW
1 stop34h 23mMultiple Airlines
Deal found 29/4£597
Mon 19/515:05LGW - ORD
2 stops25h 38mFinnair
Sat 31/508:21ORD - LGW
2 stops17h 49mFinnair
Deal found 29/4£601
Fri 12/910:40LGW - STL
2 stops18h 43mFinnair
Sat 20/907:34STL - LGW
2 stops18h 36mFinnair
Deal found 29/4£791
Mon 16/612:20LGW - STL
2 stops17h 39mAmerican Airlines
Mon 30/607:50STL - LGW
2 stops16h 45mAmerican Airlines
Deal found 28/4£878
Thu 29/512:00LGW - STL
2 stops17h 26mDelta
Thu 5/613:09STL - LGW
2 stops14h 51mDelta
Deal found 29/4£899
Thu 16/1005:20LGW - STL
2 stops38h 59mTurkish Airlines
Tue 21/1015:30STL - LGW
2 stops42h 45mTurkish Airlines
Deal found 29/4£1,086
Sat 14/612:00LGW - EVV
2 stops15h 56mVirgin Atlantic
Sat 21/609:37EVV - LGW
2 stops18h 23mVirgin Atlantic
Deal found 29/4£1,117

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 30 April 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

Thu 25/9

15:40-18:15

1 stop32h 35m

Chicago O'Hare Intl

Mon 29/9

19:25-14:35

1 stop13h 10m

£416

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Tue 20/5

13:40-07:27

2 stops23h 47m

Chicago O'Hare Intl

Fri 11/7

13:03-10:00

1 stop14h 57m

£438

LondonChicago

LGW - MDW

LGWMDW

London Gatwick

Fri 30/5

12:40-08:45

1 stop26h 05m

Chicago Midway

Mon 2/6

09:40-09:50

2 stops18h 10m

£461

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Tue 13/5

18:35-12:45

1 stop24h 10m

Chicago O'Hare Intl

Sun 18/5

19:05-17:50

1 stop16h 45m

£510

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 29/5

12:00-21:31

1 stop15h 31m

Chicago O'Hare Intl

Thu 5/6

11:07-10:00

2 stops16h 53m

£545

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Wed 18/6

14:00-23:53

1 stop15h 53m

Lambert-St Louis

Sat 21/6

17:47-10:10

1 stop34h 23m

£597

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Mon 19/5

15:05-10:43

2 stops25h 38m

Chicago O'Hare Intl

Sat 31/5

08:21-08:10

2 stops17h 49m

£601

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Fri 12/9

10:40-23:23

2 stops18h 43m

Lambert-St Louis

Sat 20/9

07:34-08:10

2 stops18h 36m

£791

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Mon 16/6

12:20-23:59

2 stops17h 39m

Lambert-St Louis

Mon 30/6

07:50-06:35

2 stops16h 45m

£878

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 29/5

12:00-23:26

2 stops17h 26m

Lambert-St Louis

Thu 5/6

13:09-10:00

2 stops14h 51m

£899

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 24 results
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2
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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 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 30 April 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.

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

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 30 April 2025.
Peruse reviews from past customers who have flown with Delta, Air Transat and Finnair from London to Illinois to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,936 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Transat
7.8
Good
385 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Virgin Atlantic
7.4
Good
642 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 £421 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Icelandair from £439 and WestJet from £471 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 2 airlines flying from Gatwick to Illinois

Discover the top 2 airlines 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 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£313Average£472FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£413Average£561FlexibilityNo cancel feeOn-time70%
Search British Airways 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?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Gatwick to Illinois for you. Better yet — we are completely free to use.

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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