Cheap flights from Illinois to London Gatwick Airport from £171

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 19/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LGW
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Illinois to Gatwick

Keep the following information in mind while searching for Illinois to Gatwick flight deals. Data was last updated 16 September 2025.

Round-trip from

£372

One-way from

£171

Popular in

June

Cheapest in

February

Average price

£485
Icelandair
  • Icelandair
  • 2/2-15/2
  • 2 total stops
  • 21h 50m total
  • Illinois to London
19/10
  • 19/10
  • 2 total stops
  • 50h 26m total
  • Illinois to London
Highest demand for flights based on searches. 21% potential increase in price (£112 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from Illinois to Gatwick

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 16 September 2025.

Wed 5/1118:30ORD - LGW
2 stops16h 50mMultiple Airlines
Tue 11/1108:50LGW - ORD
2 stops14h 30mMultiple Airlines
Deal found 14/9£372
Mon 6/1019:51ORD - LGW
1 stop32h 09mMultiple Airlines
Thu 9/1014:00LGW - ORD
1 stop34h 46mMultiple Airlines
Deal found 15/9£373
Fri 28/1118:30ORD - LGW
2 stops18h 15mMultiple Airlines
Thu 4/1220:50LGW - ORD
2 stops26h 30mMultiple Airlines
Deal found 15/9£375
Fri 3/1017:17ORD - LGW
1 stop34h 43mMultiple Airlines
Mon 6/1014:00LGW - ORD
1 stop33h 53mMultiple Airlines
Deal found 15/9£376
Tue 14/1019:05ORD - LGW
1 stop16h 45mSWISS
Tue 21/1018:35LGW - ORD
1 stop27h 20mSWISS
Deal found 15/9£377
Wed 29/1019:50ORD - LGW
1 stop17h 00mSWISS
Mon 3/1118:40LGW - ORD
1 stop27h 40mSWISS
Deal found 14/9£378
Wed 26/1118:50ORD - LGW
1 stop17h 00mSWISS
Wed 3/1218:40LGW - ORD
1 stop27h 40mSWISS
Deal found 14/9£379
Sun 2/1120:25ORD - LGW
2 stops18h 10mTAP AIR PORTUGAL
Sat 8/1116:35LGW - ORD
1 stop28h 10mTAP AIR PORTUGAL
Deal found 14/9£380
Tue 11/1118:30ORD - LGW
1 stop10h 25mIcelandair
Thu 20/1111:55LGW - ORD
1 stop11h 25mIcelandair
Deal found 14/9£381
Sun 2/1120:25ORD - LGW
2 stops18h 10mTAP AIR PORTUGAL
Tue 25/1116:35LGW - ORD
1 stop28h 25mTAP AIR PORTUGAL
Deal found 14/9£382
Sun 5/1019:25ORD - LGW
1 stop13h 15mIcelandair
Tue 14/1015:40LGW - ORD
1 stop32h 35mIcelandair
Deal found 15/9£383
Mon 6/1008:19MDW - LGW
1 stop19h 41mMultiple Airlines
Fri 31/1014:00LGW - MDW
1 stop25h 26mMultiple Airlines
Deal found 13/9£384

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 16 September 2025.
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

Mon 17/11

18:30-10:55

1 stop10h 25m

London Gatwick

Tue 25/11

11:55-17:20

1 stop11h 25m

£381

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sat 6/12

18:30-10:55

1 stop10h 25m

London Gatwick

Wed 10/12

11:55-17:20

1 stop11h 25m

£381

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 19/11

18:30-10:55

1 stop10h 25m

London Gatwick

Wed 26/11

11:55-17:20

1 stop11h 25m

£381

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Tue 18/11

18:30-10:55

1 stop10h 25m

London Gatwick

Tue 25/11

11:55-17:20

1 stop11h 25m

£381

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Thu 2/10

17:17-10:00

1 stop34h 43m

London Gatwick

Mon 6/10

14:00-17:53

1 stop33h 53m

£391

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sun 28/9

06:30-10:10

1 stop21h 40m

London Gatwick

Tue 7/10

14:00-17:53

1 stop33h 53m

£411

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 28/1

19:10-15:05

1 stop13h 55m

London Gatwick

Fri 6/2

21:25-14:45

2 stops47h 20m

£420

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Thu 13/11

18:26-06:00

1 stop29h 34m

London Gatwick

Sun 16/11

13:00-23:55

1 stop16h 55m

£427

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Fri 3/10

08:15-10:00

2 stops19h 45m

London Gatwick

Wed 8/10

14:00-09:47

1 stop25h 47m

£435

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Thu 23/10

06:00-10:00

1 stop22h 00m

London Gatwick

Mon 27/10

14:00-16:23

1 stop31h 23m

£452

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 58 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, April is the cheapest month in which you can book a flight from Illinois to London Gatwick Airport (average of £102). Flying from Illinois to London Gatwick Airport in July is currently the most expensive (average of £142). 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 Icelandair and American Airlines fly from Illinois to London Gatwick Airport in about 10h 25m. The time it takes to get you to your destination can typically vary by up to 9h 40m. 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?

  • 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, April is the cheapest month in which you can book a flight from Illinois to London Gatwick Airport (average of £102). Flying from Illinois to London Gatwick Airport in July is currently the most expensive (average of £142). 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
Hounslow
Gatwick
Slough
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Winchester
Chichester
Ipswich
Dartford
Eastbourne
Guildford
Bishop's Stortford

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Alternative routes for Illinois to Gatwick

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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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