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Cheap flights from Illinois to London Gatwick Airport from £261

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LGW
23 Apr — 30 Apr1
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 24 March 2026.

Wed 15/411:25
ORD
-
LGW
1 stop16h 30m
Turkish Airlines
Tue 21/417:35
LGW
-
ORD
1 stop22h 05m
Turkish Airlines
Deal found 24/3£489
Wed 15/420:10
ORD
-
LGW
1 stop20h 20m
Turkish Airlines
Thu 23/417:35
LGW
-
ORD
1 stop22h 05m
Turkish Airlines
Deal found 23/3£490
Tue 14/420:10
ORD
-
LGW
1 stop20h 15m
Turkish Airlines
Tue 21/417:35
LGW
-
ORD
1 stop22h 05m
Turkish Airlines
Deal found 24/3£491
Wed 15/411:25
ORD
-
LGW
1 stop23h 15m
Turkish Airlines
Fri 24/417:35
LGW
-
ORD
1 stop22h 05m
Turkish Airlines
Deal found 20/3£491
Wed 15/418:00
ORD
-
LGW
1 stop14h 00m
TAP AIR PORTUGAL
Mon 20/421:15
LGW
-
ORD
2 stops48h 45m
TAP AIR PORTUGAL
Deal found 20/3£493
Sun 12/422:25
ORD
-
LGW
1 stop10h 15m
Icelandair
Tue 21/415:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 24/3£494
Thu 1/1019:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Wed 7/1015:40
LGW
-
ORD
1 stop11h 45m
Icelandair
Deal found 22/3£494
Tue 14/411:25
ORD
-
LGW
1 stop16h 30m
Turkish Airlines
Mon 20/417:35
LGW
-
ORD
1 stop22h 05m
Turkish Airlines
Deal found 24/3£495
Sun 3/522:25
ORD
-
LGW
1 stop10h 15m
Icelandair
Sat 9/515:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 22/3£497
Wed 29/420:10
ORD
-
LGW
1 stop35h 00m
Turkish Airlines
Wed 6/507:05
LGW
-
ORD
1 stop17h 10m
Turkish Airlines
Deal found 23/3£497
Fri 24/411:25
ORD
-
LGW
1 stop23h 20m
Turkish Airlines
Fri 1/514:05
LGW
-
ORD
1 stop25h 35m
Turkish Airlines
Deal found 24/3£498
Mon 13/419:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Fri 17/415:40
LGW
-
ORD
1 stop11h 45m
Icelandair
Deal found 23/3£499

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 24 March 2026.

Round-trip from

£489

One-way from

£261

Popular in

June

Cheapest in

February

Average price

£529
Turkish Airlines
  • Turkish Airlines
  • 15/4-22/4
  • 2 total stops
  • 64h 00m total
  • Illinois to London
Search Deals
15/8
  • 15/8
  • 2 total stops
  • 32h 47m total
  • Illinois to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£112 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 24 March 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

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Tue 14/4

20:10-22:25

1 stop20h 15m

London Gatwick

Sat 18/4

07:10-09:40

1 stop32h 30m

£593

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Tue 21/4

12:52-09:25

2 stops14h 33m

London Gatwick

Fri 1/5

10:25-22:28

2 stops18h 03m

£622

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Thu 16/4

07:30-06:20

1 stop16h 50m

London Gatwick

Sun 19/4

14:00-19:31

2 stops35h 31m

£629

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Sat 4/4

06:00-10:00

1 stop22h 00m

London Gatwick

Sat 11/4

14:00-23:05

1 stop15h 05m

£655

BloomingtonLondon

BMI - LGW

BMILGW

Bloomington-Normal

Tue 5/5

12:02-09:25

2 stops15h 23m

London Gatwick

Tue 12/5

10:35-22:30

2 stops17h 55m

£670

BloomingtonLondon

BMI - LGW

BMILGW

Bloomington-Normal

Tue 21/4

12:02-09:25

2 stops15h 23m

London Gatwick

Tue 28/4

10:35-22:21

2 stops17h 46m

£670

BloomingtonLondon

BMI - LGW

BMILGW

Bloomington-Normal

Wed 6/5

16:20-16:00

2 stops17h 40m

London Gatwick

Wed 13/5

10:25-22:30

2 stops18h 05m

£670

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Mon 13/4

08:58-14:40

2 stops23h 42m

London Gatwick

Tue 21/4

15:40-18:15

1 stop32h 35m

£676

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Fri 12/6

15:20-10:45

1 stop13h 25m

London Gatwick

Wed 17/6

09:45-09:40

2 stops29h 55m

£681

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Fri 12/6

15:20-10:45

1 stop13h 25m

London Gatwick

Sun 21/6

21:35-09:40

2 stops42h 05m

£684

Flights are sorted by cheapest return flights first.

Deals found on 19/3

Showing 1-10 of 56 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, June is the cheapest month in which you can book a flight from Illinois to London Gatwick Airport (average of £46). Flying from Illinois to London Gatwick Airport in July is currently the most expensive (average of £524). 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 Turkish Airlines, Delta, and Icelandair fly from Illinois to London Gatwick Airport in about 14h 33m. The time it takes to get you to your destination can typically vary by up to 9h 09m. Illinois and London Gatwick Airport are separated by a distance of 3963 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 £46). Flying from Illinois to London Gatwick Airport in July is currently the most expensive (average of £524). 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
Wembley
Croydon
Hounslow
Luton
Gatwick
Slough
Ilford
Hayes
Brentford
Colchester
Eastbourne
Guildford
Watford
Kingston upon Thames
Romford
Ipswich
Bedford
Chelmsford
Bishop's Stortford

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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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