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Cheap flights from Illinois to London Gatwick Airport from £248

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
31 May — 7 Jun1
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 May 2026.

Fri 2/1022:25
ORD
-
LGW
1 stop10h 15m
Icelandair
Mon 5/1015:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 26/4£536
Wed 16/922:25
ORD
-
LGW
1 stop10h 15m
Icelandair
Mon 21/915:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 26/4£537
Tue 15/919:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Tue 6/1015:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 26/4£539
Wed 16/922:25
ORD
-
LGW
1 stop10h 15m
Icelandair
Fri 2/1015:40
LGW
-
ORD
1 stop11h 45m
Icelandair
Deal found 26/4£541
Fri 18/919:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Thu 1/1015:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 26/4£542
Wed 4/1118:30
ORD
-
LGW
2 stops17h 50m
Multiple Airlines
Wed 11/1108:50
LGW
-
ORD
2 stops14h 30m
Multiple Airlines
Deal found 26/4£542
Sun 19/719:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Tue 25/813:00
LGW
-
ORD
1 stop11h 15m
Icelandair
Deal found 27/4£543
Thu 17/919:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Sat 26/915:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 27/4£544
Tue 3/1118:30
ORD
-
LGW
2 stops21h 30m
Multiple Airlines
Tue 10/1108:50
LGW
-
ORD
2 stops14h 30m
Multiple Airlines
Deal found 26/4£546
Mon 23/1118:30
ORD
-
LGW
1 stop10h 25m
Icelandair
Fri 27/1111:55
LGW
-
ORD
1 stop11h 25m
Icelandair
Deal found 26/4£551
Tue 10/1118:30
ORD
-
LGW
1 stop10h 25m
Icelandair
Mon 16/1111:55
LGW
-
ORD
1 stop11h 25m
Icelandair
Deal found 26/4£552
Thu 8/1019:25
ORD
-
LGW
1 stop13h 15m
Icelandair
Thu 15/1015:40
LGW
-
ORD
1 stop32h 35m
Icelandair
Deal found 26/4£553

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 May 2026.

Round-trip from

£536

One-way from

£248

Popular in

June

Cheapest in

February

Average price

£640
Icelandair
  • Icelandair
  • 2/10-5/10
  • 2 total stops
  • 42h 50m total
  • Illinois to London
Search Deals
Delta
  • Delta
  • 4/8
  • 2 total stops
  • 15h 56m total
  • Illinois to London
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£124 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 May 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

MDW - LGW

MDWLGW

Chicago Midway

Fri 12/6

10:15-07:55

2 stops15h 40m

London Gatwick

Thu 18/6

11:35-14:35

2 stops33h 00m

£599

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sun 16/8

22:25-11:45

1 stop31h 20m

London Gatwick

Sun 23/8

15:40-18:15

1 stop32h 35m

£612

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Sat 13/6

10:15-09:50

2 stops17h 35m

London Gatwick

Sat 20/6

11:35-14:35

2 stops33h 00m

£621

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Tue 16/6

10:15-07:55

2 stops15h 40m

London Gatwick

Tue 30/6

09:40-14:35

2 stops34h 55m

£638
Fastest return journey

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 12/8

17:10-09:25

1 stop10h 15m

London Gatwick

Wed 19/8

10:25-20:17

2 stops15h 52m

£652

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 14/10

10:30-09:25

2 stops16h 55m

London Gatwick

Wed 21/10

10:25-21:33

2 stops17h 08m

£655

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Fri 22/5

10:30-07:55

2 stops15h 25m

London Gatwick

Sun 7/6

09:40-14:35

2 stops34h 55m

£692

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Sat 6/6

10:15-09:50

2 stops17h 35m

London Gatwick

Wed 10/6

11:35-09:35

2 stops28h 00m

£692

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Fri 12/6

10:15-10:45

1 stop18h 30m

London Gatwick

Sun 21/6

10:45-09:40

2 stops28h 55m

£707

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Tue 2/6

10:25-10:45

1 stop18h 20m

London Gatwick

Thu 11/6

09:45-09:40

2 stops29h 55m

£717

Flights are sorted by cheapest return flights first.

Deals found on 30/4

Showing 1-10 of 60 resultsSorted by cheapest first
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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, 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 £504). 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, Delta, and Virgin Atlantic 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 21h 05m. 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 £46). Flying from Illinois to London Gatwick Airport in July is currently the most expensive (average of £504). 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
Ilford
Slough
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Ipswich
Southend-on-Sea
Guildford
Bishop's Stortford
Chelmsford

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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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