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Cheap flights from London Gatwick Airport to Illinois from £204

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — ORD
31 Mar — 7 Apr1
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 March 2025.

Round-trip from

£416

One-way from

£204

Popular in

August

Cheapest in

February

Average price

£495
8/5-15/5
  • 8/5-15/5
  • 4 total stops
  • 51h 30m total
  • London to Illinois
Search Deals
4/5
  • 4/5
  • 1 total stop
  • 16h 06m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£59 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 March 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 March 2025.

Thu 8/514:50LGW - ORD
2 stops31h 20mMultiple Airlines
Thu 15/519:15ORD - LGW
2 stops20h 10mMultiple Airlines
Deal found 24/3£416
Wed 30/415:40LGW - ORD
1 stop11h 35mIcelandair
Mon 5/519:25ORD - LGW
1 stop10h 20mIcelandair
Deal found 24/3£419
Wed 23/421:05LGW - ORD
1 stop22h 25mBritish Airways
Mon 28/411:36ORD - LGW
2 stops16h 39mBritish Airways
Deal found 23/3£421
Sat 3/515:05LGW - ORD
2 stops21h 59mFinnair
Sat 10/520:17ORD - LGW
2 stops29h 33mFinnair
Deal found 24/3£431
Thu 1/514:00LGW - MDW
1 stop28h 24mMultiple Airlines
Fri 16/513:19MDW - LGW
1 stop14h 41mMultiple Airlines
Deal found 25/3£438
Thu 28/821:20LGW - ORD
2 stops24h 50mTAP AIR PORTUGAL
Mon 1/918:10ORD - LGW
1 stop15h 25mTAP AIR PORTUGAL
Deal found 25/3£531
Thu 10/414:00LGW - STL
1 stop15h 46mMultiple Airlines
Mon 14/416:57STL - LGW
1 stop35h 03mMultiple Airlines
Deal found 25/3£620
Thu 3/712:00LGW - STL
2 stops41h 20mAir France
Sun 13/719:05STL - LGW
2 stops32h 55mAir France
Deal found 25/3£977
Wed 15/1005:20LGW - STL
2 stops38h 58mTurkish Airlines
Sun 19/1017:18STL - LGW
2 stops23h 07mTurkish Airlines
Deal found 25/3£1,095
Fri 15/812:00LGW - MDW
2 stops39h 47mKLM
Sat 23/810:35MDW - LGW
2 stops17h 25mKLM
Deal found 24/3£1,127
Thu 8/511:45LGW - EVV
2 stops16h 23mBritish Airways
Thu 15/514:51EVV - LGW
2 stops38h 04mBritish Airways
Deal found 24/3£1,469
Tue 19/812:00LGW - EVV
2 stops16h 05mDelta
Tue 26/810:05EVV - LGW
2 stops17h 55mDelta
Deal found 24/3£1,640

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 March 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 8/5

14:50-16:10

2 stops31h 20m

Chicago O'Hare Intl

Thu 15/5

19:15-21:25

2 stops20h 10m

£416

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 30/4

15:40-21:15

1 stop11h 35m

Chicago O'Hare Intl

Mon 5/5

19:25-11:45

1 stop10h 20m

£419

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 23/4

21:05-13:30

1 stop22h 25m

Chicago O'Hare Intl

Mon 28/4

11:36-10:15

2 stops16h 39m

£421

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Sat 3/5

15:05-07:04

2 stops21h 59m

Chicago O'Hare Intl

Sat 10/5

20:17-07:50

2 stops29h 33m

£431

LondonChicago

LGW - MDW

LGWMDW

London Gatwick

Thu 1/5

14:00-12:24

1 stop28h 24m

Chicago Midway

Fri 16/5

13:19-10:00

1 stop14h 41m

£438

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 28/8

21:20-16:10

2 stops24h 50m

Chicago O'Hare Intl

Mon 1/9

18:10-15:35

1 stop15h 25m

£531

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 19/6

15:05-05:59

2 stops20h 54m

Chicago O'Hare Intl

Sun 22/6

10:03-07:50

1 stop15h 47m

£560

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 10/4

14:00-23:46

1 stop15h 46m

Lambert-St Louis

Mon 14/4

16:57-10:00

1 stop35h 03m

£620

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 3/7

12:00-23:20

2 stops41h 20m

Lambert-St Louis

Sun 13/7

19:05-10:00

2 stops32h 55m

£977

LondonChicago

LGW - MDW

LGWMDW

London Gatwick

Fri 15/8

12:00-21:47

2 stops39h 47m

Chicago Midway

Sat 23/8

10:35-10:00

2 stops17h 25m

£1,127

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 23 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 26 March 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 26 March 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
7,891 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

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
7,891 reviews
Delta
8.0
Very Good
7,891 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

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
381 reviews
Delta
8.0
Very Good
7,891 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

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
1,266 reviews
Delta
8.0
Very Good
7,891 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

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 France
7.4
Good
1,423 reviews
Delta
8.0
Very Good
7,891 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

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
Turkish Airlines
7.3
Good
3,745 reviews
Delta
8.0
Very Good
7,891 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

8.0

Crew

8.5

Overall

8.0

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 £393 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Air Transat from £405 and Icelandair from £413 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 26 March 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£324Average£480FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£428Average£582FlexibilityNo 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.

Can Cheapflights notify me if prices for flights from Gatwick to Illinois become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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