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Cheap flights from Illinois to London Gatwick Airport from £163

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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LGW
20 Aug — 27 Aug1
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 21 July 2026.

Mon 14/909:26
ORD
-
LGW
1 stop18h 34m
Multiple Airlines
Fri 18/914:00
LGW
-
ORD
1 stop15h 55m
Multiple Airlines
Deal found 21/7£518
Mon 17/819:25
ORD
-
LGW
2 stops21h 00m
Multiple Airlines
Mon 24/821:30
LGW
-
ORD
3 stops28h 35m
Multiple Airlines
Deal found 20/7£518
Tue 11/817:30
ORD
-
LGW
2 stops34h 30m
Multiple Airlines
Tue 25/814:00
LGW
-
ORD
1 stop15h 08m
Multiple Airlines
Deal found 21/7£519
Wed 12/817:30
ORD
-
LGW
2 stops34h 30m
Multiple Airlines
Tue 25/814:00
LGW
-
ORD
1 stop15h 08m
Multiple Airlines
Deal found 21/7£520
Mon 10/817:13
ORD
-
LGW
1 stop34h 47m
Multiple Airlines
Tue 25/814:00
LGW
-
ORD
1 stop15h 08m
Multiple Airlines
Deal found 20/7£521
Thu 1/1019:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Tue 6/1015:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 19/7£522
Fri 14/810:16
ORD
-
LGW
1 stop17h 44m
Multiple Airlines
Tue 1/914:00
LGW
-
ORD
1 stop15h 08m
Multiple Airlines
Deal found 17/7£523
Wed 30/922:25
ORD
-
LGW
1 stop10h 15m
Icelandair
Sun 4/1015:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 18/7£523
Fri 2/1019:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Tue 6/1015:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 21/7£525
Wed 14/1022:25
ORD
-
LGW
1 stop10h 15m
Icelandair
Wed 4/1111:55
LGW
-
ORD
1 stop11h 25m
Icelandair
Deal found 20/7£526
Fri 9/1015:20
MDW
-
LGW
1 stop13h 25m
Multiple Airlines
Mon 19/1012:40
LGW
-
MDW
1 stop28h 20m
Multiple Airlines
Deal found 18/7£676
Thu 24/915:20
MDW
-
LGW
1 stop13h 25m
Multiple Airlines
Tue 29/912:40
LGW
-
MDW
1 stop28h 20m
Multiple Airlines
Deal found 17/7£678

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 21 July 2026.

Round-trip from

£518

One-way from

£163

Popular in

June

Cheapest in

February

Average price

£734
17/8-24/8
  • 17/8-24/8
  • 5 total stops
  • 49h 35m total
  • Illinois to London
Search Deals
4/8
  • 4/8
  • 2 total stops
  • 33h 26m total
  • Illinois to London
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£160 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£30 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 21 July 2026.
Use the filters below to find and compare flights from Illinois to London Gatwick Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Mon 2/11

18:25-15:45

1 stop15h 20m

London Gatwick

Tue 10/11

10:00-16:15

1 stop12h 15m

£642

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sun 13/9

11:25-09:55

1 stop16h 30m

London Gatwick

Tue 22/9

17:35-09:40

1 stop22h 05m

£648

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Tue 20/10

07:30-09:25

2 stops19h 55m

London Gatwick

Thu 12/11

10:00-23:50

2 stops19h 50m

£651

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 12/8

18:00-20:30

2 stops20h 30m

London Gatwick

Tue 15/9

16:25-16:00

1 stop29h 35m

£665

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Mon 5/10

07:35-09:40

2 stops20h 05m

London Gatwick

Wed 14/10

17:00-15:10

1 stop28h 10m

£667

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Thu 14/1

20:15-09:10

1 stop30h 55m

London Gatwick

Sat 23/1

06:30-18:20

1 stop17h 50m

£670

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sat 15/8

17:13-10:00

1 stop34h 47m

London Gatwick

Sat 22/8

14:00-23:08

1 stop15h 08m

£687

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 9/9

18:00-11:20

2 stops35h 20m

London Gatwick

Wed 23/9

16:25-12:40

1 stop26h 15m

£705

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Mon 17/8

13:25-09:40

2 stops14h 15m

London Gatwick

Wed 26/8

10:25-22:36

2 stops18h 11m

£708

MolineLondon

MLI - LGW

MLILGW

Moline Quad-City

Wed 23/9

11:19-09:25

2 stops16h 06m

London Gatwick

Wed 30/9

10:25-22:30

2 stops18h 05m

£714

Flights are sorted by cheapest return flights first.

Deals found on 16/7

Showing 1-10 of 57 resultsSorted by cheapest first
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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, January is the cheapest month in which you can book a flight from Illinois to London Gatwick Airport (average of £355). Flying from Illinois to London Gatwick Airport in December is currently the most expensive (average of £1,031). 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.

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 Delta, TAP AIR PORTUGAL, and Turkish Airlines fly from Illinois to London Gatwick Airport in about 15h 20m. The time it takes to get you to your destination can typically vary by up to 15h 35m. 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, January is the cheapest month in which you can book a flight from Illinois to London Gatwick Airport (average of £355). Flying from Illinois to London Gatwick Airport in December is currently the most expensive (average of £1,031). 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
Hounslow
Milton Keynes
Luton
Wembley
Gatwick
Slough
Ilford
Hayes
Croydon
Colchester
Brentford
Eastbourne
Watford
Southend-on-Sea
Kingston upon Thames
Southall
Aylesbury
Dover
Romford
Enfield

Browse thousands of different options on Cheapflights for your next trip

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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

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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