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Cheap flights from Illinois to London Gatwick Airport from £129

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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LGW
30 Dec — 6 Jan1
1 adult
1 adult, Economy, 0 bags

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 30 November 2025.

Round-trip from

£422

One-way from

£129

Popular in

June

Cheapest in

February

Average price

£516
4/2-11/2
  • 4/2-11/2
  • 3 total stops
  • 37h 20m total
  • Illinois to London
Search Deals
26/1
  • 26/1
  • 1 total stop
  • 17h 44m total
  • Illinois to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£117 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 30 November 2025.

Sun 7/1215:50ORD - LGW
1 stop11h 25mMultiple Airlines
Tue 16/1211:25LGW - ORD
1 stop12h 30mMultiple Airlines
Deal found 30/11£423
Wed 3/1218:30ORD - LGW
1 stop10h 25mIcelandair
Wed 10/1211:55LGW - ORD
1 stop11h 25mIcelandair
Deal found 28/11£431
Tue 9/1207:44MDW - LGW
2 stops21h 11mMultiple Airlines
Thu 15/114:00LGW - MDW
1 stop25h 09mMultiple Airlines
Deal found 28/11£432
Wed 3/1218:30ORD - LGW
1 stop10h 25mIcelandair
Tue 9/1211:55LGW - ORD
1 stop11h 25mIcelandair
Deal found 28/11£432
Thu 11/1211:44ORD - LGW
2 stops16h 16mMultiple Airlines
Fri 16/114:00LGW - ORD
1 stop30h 39mMultiple Airlines
Deal found 28/11£436
Sun 7/1220:25ORD - LGW
1 stop13h 20mTAP AIR PORTUGAL
Tue 16/1221:20LGW - ORD
2 stops23h 40mTAP AIR PORTUGAL
Deal found 28/11£437
Sun 30/1120:25ORD - LGW
2 stops18h 10mTAP AIR PORTUGAL
Sat 6/1216:35LGW - ORD
1 stop28h 10mTAP AIR PORTUGAL
Deal found 28/11£438
Wed 10/1215:50ORD - LGW
1 stop10h 20mMultiple Airlines
Wed 17/1208:50LGW - ORD
1 stop15h 05mMultiple Airlines
Deal found 28/11£440
Sun 7/1219:40ORD - LGW
1 stop12h 45mMultiple Airlines
Wed 10/1208:50LGW - ORD
1 stop11h 10mMultiple Airlines
Deal found 27/11£444
Fri 12/1210:42STL - LGW
2 stops17h 18mMultiple Airlines
Thu 8/114:00LGW - STL
1 stop23h 50mMultiple Airlines
Deal found 29/11£556
Sun 7/1207:44MDW - LGW
1 stop16h 16mMultiple Airlines
Sat 13/1214:00LGW - MDW
2 stops27h 08mMultiple Airlines
Deal found 30/11£692
Mon 8/1214:54STL - LGW
2 stops22h 06mIberia
Wed 24/1219:40LGW - STL
2 stops43h 51mIberia
Deal found 29/11£744

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 30 November 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

Wed 15/4

18:00-14:00

1 stop14h 00m

London Gatwick

Tue 28/4

21:15-16:00

2 stops24h 45m

£465

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Tue 20/1

17:40-17:10

2 stops17h 30m

London Gatwick

Mon 26/1

17:20-14:55

2 stops27h 35m

£477

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Tue 6/1

17:11-06:00

2 stops30h 49m

London Gatwick

Mon 12/1

14:00-22:33

1 stop14h 33m

£499

St. LouisLondon

STL - LGW

STLLGW

Lambert-St Louis

Wed 7/1

17:11-10:00

1 stop34h 49m

London Gatwick

Thu 15/1

14:00-22:34

1 stop14h 34m

£515

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 15/4

16:30-19:00

2 stops20h 30m

London Gatwick

Tue 28/4

15:25-14:15

2 stops28h 50m

£539

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 22/4

16:30-19:00

2 stops20h 30m

London Gatwick

Mon 27/4

19:40-14:15

2 stops24h 35m

£543

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 25/3

20:10-15:05

1 stop13h 55m

London Gatwick

Wed 1/4

21:15-16:00

2 stops48h 45m

£570

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 22/4

16:30-19:00

2 stops20h 30m

London Gatwick

Wed 29/4

19:40-14:15

2 stops24h 35m

£571

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Fri 20/3

15:10-10:00

1 stop13h 50m

London Gatwick

Sun 29/3

21:15-13:01

2 stops45h 46m

£593

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Tue 5/5

16:30-17:20

2 stops18h 50m

London Gatwick

Mon 11/5

21:05-14:15

2 stops23h 10m

£596

Flights are sorted by cheapest return flights first.

Deals found on 27/11

Showing 1-10 of 57 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, February is the cheapest month in which you can book a flight from Illinois to London Gatwick Airport (average of £323). Flying from Illinois to London Gatwick Airport in July is currently the most expensive (average of £533). 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 TAP AIR PORTUGAL and American Airlines fly from Illinois to London Gatwick Airport in about 14h. The time it takes to get you to your destination can typically vary by up to 4h 47m. 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 cheapest airlines to fly from Illinois to London Gatwick Airport one-way?

    One-way options have recently been found by users for as low as £288 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include SWISS from £290 and WestJet from £291 one-way.

  • 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 Chicago Midway - London Gatwick or Lambert-St Louis - 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 £323). Flying from Illinois to London Gatwick Airport in July is currently the most expensive (average of £533). 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
Slough
Gatwick
Luton
Ilford
Wembley
Colchester
Brentford
Watford
Hayes
Crawley
Deal
Winchester
Romford
Bedford
Chichester
Guildford
Ipswich

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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?

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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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