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Cheap flights from Illinois to London Gatwick Airport from £197

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 26/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LGW
28 Mar — 4 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 26 February 2026.

Sun 20/922:25
ORD
-
LGW
1 stop10h 15m
Icelandair
Sun 27/915:40
LGW
-
ORD
1 stop11h 45m
Icelandair
Deal found 24/2£401
Wed 29/419:25
ORD
-
LGW
2 stops17h 00m
Multiple Airlines
Tue 5/508:50
LGW
-
ORD
2 stops15h 25m
Multiple Airlines
Deal found 23/2£402
Fri 17/422:25
ORD
-
LGW
1 stop10h 15m
Icelandair
Wed 6/515:40
LGW
-
ORD
1 stop11h 45m
Icelandair
Deal found 23/2£403
Tue 14/419:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Sat 9/515:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 23/2£404
Sat 26/919:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Sat 3/1015:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 24/2£404
Tue 28/419:25
ORD
-
LGW
2 stops13h 45m
Multiple Airlines
Tue 5/508:50
LGW
-
ORD
2 stops15h 25m
Multiple Airlines
Deal found 25/2£405
Tue 15/919:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Tue 29/915:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 22/2£406
Tue 10/319:30
ORD
-
LGW
1 stop10h 25m
Icelandair
Tue 17/311:55
LGW
-
ORD
1 stop11h 25m
Icelandair
Deal found 25/2£407
Wed 2/919:25
ORD
-
LGW
1 stop10h 20m
Icelandair
Thu 10/913:00
LGW
-
ORD
1 stop11h 15m
Icelandair
Deal found 24/2£407
Wed 11/320:10
ORD
-
LGW
1 stop13h 55m
TAP AIR PORTUGAL
Tue 17/316:35
LGW
-
ORD
1 stop28h 25m
TAP AIR PORTUGAL
Deal found 24/2£408
Wed 26/819:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Wed 9/915:40
LGW
-
ORD
1 stop11h 45m
Icelandair
Deal found 24/2£409
Sun 6/922:25
ORD
-
LGW
1 stop10h 15m
Icelandair
Tue 15/915:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 25/2£410

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 26 February 2026.

Round-trip from

£402

One-way from

£197

Popular in

June

Cheapest in

September

Average price

£490
29/4-5/5
  • 29/4-5/5
  • 4 total stops
  • 32h 25m total
  • Illinois to London
Search Deals
26/3
  • 26/3
  • 1 total stop
  • 20h 58m total
  • Illinois to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£113 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% 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 26 February 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

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Sun 10/5

07:30-06:20

1 stop16h 50m

London Gatwick

Fri 15/5

13:05-13:00

1 stop29h 55m

£441

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 22/4

17:10-09:25

1 stop10h 15m

London Gatwick

Tue 28/4

10:35-20:40

2 stops16h 05m

£488

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Wed 8/4

13:39-16:00

2 stops20h 21m

London Gatwick

Wed 15/4

10:25-21:19

2 stops16h 54m

£493

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Tue 21/4

13:02-09:25

2 stops14h 23m

London Gatwick

Wed 29/4

10:25-21:19

2 stops16h 54m

£493

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sat 9/5

17:10-16:00

1 stop16h 50m

London Gatwick

Wed 20/5

10:25-20:14

2 stops15h 49m

£525

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 8/4

19:25-14:40

1 stop13h 15m

London Gatwick

Wed 22/4

15:40-18:15

1 stop32h 35m

£526

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Tue 5/5

07:30-06:20

1 stop16h 50m

London Gatwick

Mon 11/5

15:50-13:00

2 stops51h 10m

£533

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Wed 22/4

13:03-09:25

2 stops14h 22m

London Gatwick

Thu 30/4

10:25-21:19

2 stops16h 54m

£582

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Thu 26/3

13:24-10:00

1 stop15h 36m

London Gatwick

Wed 15/4

15:40-13:00

2 stops27h 20m

£598

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Tue 31/3

09:30-06:20

1 stop14h 50m

London Gatwick

Mon 6/4

14:00-23:00

1 stop15h 00m

£607

Flights are sorted by cheapest return flights first.

Deals found on 24/2

Showing 1-10 of 60 resultsSorted by cheapest first
1
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6

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, February is the cheapest month in which you can book a flight from Illinois to London Gatwick Airport (average of £315). Flying from Illinois to London Gatwick Airport in June is currently the most expensive (average of £702). 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 and Icelandair 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 3h. 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, February is the cheapest month in which you can book a flight from Illinois to London Gatwick Airport (average of £315). Flying from Illinois to London Gatwick Airport in June is currently the most expensive (average of £702). 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
Croydon
Wembley
Luton
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Watford
Guildford
Kingston upon Thames
Eastbourne
Ipswich
Chelmsford
Bedford
Romford
Folkestone

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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Dulles Intl to London City flights
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Philadelphia to Heathrow flights
Los Angeles to Stansted flights
Boston to Stansted flights
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O'Hare Intl to Gatwick flights
Minneapolis to Heathrow flights
O'Hare Intl to London City flights
Charlotte to Heathrow flights
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Austin to Heathrow flights
O'Hare Intl to Stansted flights
Los Angeles to London City flights
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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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