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Cheap flights from Illinois to London Gatwick Airport from £151

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 21/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LGW
3 Mar — 10 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Gatwick

Enter your travel dates to find the best prices.

Cheapest flights from Illinois to Gatwick
Explore the most affordable flight options available from Illinois to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 February 2026.

Sun 19/419:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Sun 10/515:40
LGW
-
ORD
1 stop11h 45m
Icelandair
Deal found 1/2£380
Sun 15/218:30
ORD
-
LGW
1 stop10h 25m
Icelandair
Thu 26/211:55
LGW
-
ORD
1 stop11h 25m
Icelandair
Deal found 29/1£381
Mon 21/919:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Wed 30/915:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 1/2£382
Mon 20/419:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Sun 10/515:40
LGW
-
ORD
1 stop11h 45m
Icelandair
Deal found 29/1£383
Sat 18/419:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Mon 11/515:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 29/1£383
Wed 4/218:30
ORD
-
LGW
2 stops18h 25m
Multiple Airlines
Wed 11/208:50
LGW
-
ORD
2 stops14h 30m
Multiple Airlines
Deal found 30/1£384
Tue 10/218:30
ORD
-
LGW
1 stop10h 25m
Icelandair
Thu 19/211:55
LGW
-
ORD
1 stop11h 25m
Icelandair
Deal found 31/1£385
Fri 8/522:25
ORD
-
LGW
1 stop10h 15m
Icelandair
Sun 17/515:40
LGW
-
ORD
1 stop11h 45m
Icelandair
Deal found 30/1£386
Sat 2/519:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Thu 7/513:00
LGW
-
ORD
1 stop11h 15m
Icelandair
Deal found 1/2£386
Sun 15/218:30
ORD
-
LGW
2 stops16h 40m
Multiple Airlines
Tue 24/208:50
LGW
-
ORD
2 stops14h 30m
Multiple Airlines
Deal found 1/2£387
Tue 5/519:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Sat 16/515:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 1/2£388
Wed 25/205:15
ORD
-
LGW
2 stops18h 45m
Multiple Airlines
Mon 2/314:00
LGW
-
ORD
1 stop35h 47m
Multiple Airlines
Deal found 30/1£388

Find flight deals from Illinois to Gatwick

Keep the following information in mind while searching for Illinois to Gatwick flight deals. Data was last updated 1 February 2026.

Round-trip from

£380

One-way from

£151

Popular in

June

Cheapest in

April

Average price

£480
Icelandair
  • Icelandair
  • 7/4-12/5
  • 2 total stops
  • 24h 30m total
  • Illinois to London
Search Deals
21/2
  • 21/2
  • 2 total stops
  • 27h 43m total
  • Illinois to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£107 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Illinois to Gatwick 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 1 February 2026.
Use the filters below to find and compare flights from Illinois to London Gatwick Airport that are best for you.

Fly from

Illinois

Fly to

Gatwick

Route

Depart

Return

Price

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Fri 10/4

22:25-14:40

1 stop10h 15m

London Gatwick

Fri 17/4

15:40-21:25

1 stop11h 45m

£394

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Mon 11/5

19:25-11:45

1 stop10h 20m

London Gatwick

Wed 20/5

15:40-21:25

1 stop11h 45m

£406

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Sun 26/4

07:30-20:20

2 stops30h 50m

London Gatwick

Tue 28/4

13:05-13:00

1 stop29h 55m

£415

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Mon 2/3

12:44-10:00

1 stop15h 16m

London Gatwick

Mon 9/3

14:00-17:46

1 stop32h 46m

£425

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Sun 8/3

07:30-06:00

1 stop17h 30m

London Gatwick

Wed 18/3

13:00-13:02

1 stop29h 02m

£426

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Thu 5/3

07:30-10:00

1 stop20h 30m

London Gatwick

Fri 6/3

14:00-23:51

1 stop15h 51m

£439

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Thu 14/5

19:25-14:40

1 stop13h 15m

London Gatwick

Thu 21/5

13:00-18:15

1 stop11h 15m

£451

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 8/4

17:10-09:25

1 stop10h 15m

London Gatwick

Wed 22/4

10:25-20:40

2 stops16h 15m

£483

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Thu 12/2

06:25-10:00

2 stops21h 35m

London Gatwick

Thu 19/2

14:00-14:26

1 stop30h 26m

£497

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Tue 17/2

06:00-06:00

2 stops42h 00m

London Gatwick

Fri 20/2

14:00-14:55

1 stop30h 55m

£503

Flights are sorted by cheapest return flights first.

Deals found on 30/1

Showing 1-10 of 56 results
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Best time to book a flight from Illinois to Gatwick

Have a flexible travel schedule? Discover the best time to fly to Gatwick from Illinois 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 Illinois to London Gatwick Airport

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

Currently, June is the cheapest month in which you can book a flight from Illinois to London Gatwick Airport (average of £274). Flying from Illinois to London Gatwick Airport in July is currently the most expensive (average of £516). 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.

How much does it cost for a return flight from Illinois to London Gatwick Airport?

Related info for your journey

Find useful and relevant information for your journey from Illinois to Gatwick. 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 Illinois to London Gatwick Airport?

    Airlines like Icelandair, Turkish Airlines, and Delta fly from Illinois to London Gatwick Airport in about 10h 15m. The time it takes to get you to your destination can typically vary by up to 5h 20m. Illinois and London Gatwick Airport are separated by a distance of 3960 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    The most popular route from Illinois to London Gatwick Airport is Chicago O'Hare Intl - London Gatwick. You may also consider Lambert-St Louis - London Gatwick or Chicago Midway - London Gatwick.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Gatwick 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 Illinois to London Gatwick Airport?

    Currently, June is the cheapest month in which you can book a flight from Illinois to London Gatwick Airport (average of £274). Flying from Illinois to London Gatwick Airport in July is currently the most expensive (average of £516). 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

Travelling to a place near London Gatwick Airport?

Book flights to London Gatwick Airport if you plan to visit one of these locations
Milton Keynes
Luton
Croydon
Wembley
Gatwick
Slough
Hounslow
Ilford
Brentford
Hayes
Watford
Colchester
Guildford
Chelmsford
Bedford
Crawley
Kingston upon Thames
Eastbourne
Romford
Ipswich

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Alternative routes for Illinois to Gatwick

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Illinois to Gatwick. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Gatwick from Illinois.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Illinois to Gatwick flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on Illinois to Gatwick flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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