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Cheap flights from Illinois to London Gatwick Airport from £227

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LGW
12 Sep — 19 Sep1
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 13 August 2026.

Fri 23/1020:34 -
1 stop31h 26m
Tue 3/1110:10 -
2 stops53h 30m
Deal found 10/8£435
Fri 25/917:19 -
1 stop34h 41m
Wed 30/914:00 -
1 stop33h 54m
Deal found 11/8£489
Mon 28/911:15 -
1 stop16h 45m
Wed 18/1110:10 -
1 stop19h 40m
Deal found 12/8£492
Sat 17/1019:44 -
2 stops32h 16m
Thu 29/1011:00 -
1 stop26h 21m
Deal found 12/8£493
Wed 21/1019:44 -
2 stops32h 16m
Thu 29/1011:00 -
1 stop26h 21m
Deal found 12/8£494
Sun 27/917:19 -
1 stop34h 41m
Wed 30/914:00 -
1 stop33h 54m
Deal found 10/8£495
Mon 21/915:45 -
1 stop23h 10m
Tue 29/920:00 -
2 stops29h 15m
Deal found 13/8£496
Tue 20/1009:00 -
1 stop19h 00m
Tue 27/1010:10 -
1 stop18h 40m
Deal found 13/8£497
Tue 6/1019:25 -
2 stops19h 50m
Tue 13/1009:40 -
2 stops14h 35m
Deal found 13/8£498
Sat 24/1009:20 -
2 stops18h 40m
Thu 29/1011:00 -
1 stop26h 21m
Deal found 10/8£501
Tue 20/1009:00 -
1 stop19h 00m
Wed 28/1010:10 -
1 stop27h 11m
Deal found 12/8£502
Tue 13/1019:15 -
2 stops18h 00m
Tue 20/1019:55 -
2 stops26h 15m
Deal found 11/8£504

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 13 August 2026.

Round-trip from

£435

One-way from

£227

Popular in

June

Cheapest in

February

Average price

£600
23/10-3/11
  • 23/10-3/11
  • 3 total stops
  • 84h 56m total
  • Illinois to London
Search Deals
Icelandair
  • Icelandair
  • 7/10
  • 1 total stop
  • 10h 15m total
  • Illinois to London
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£156 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£29 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 13 August 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 Chicago Midway - LGW London Gatwick

MDWLGW

Chicago Midway

Fri 11/9

11:45-09:50

2 stops16h 05m

London Gatwick

Sun 13/9

09:40-14:35

2 stops34h 55m

£588

PeoriaLondon

PIA Greater Peoria - LGW London Gatwick

PIALGW

Greater Peoria

Tue 9/2

06:50-07:30

2 stops18h 40m

London Gatwick

Tue 16/2

11:15-00:10

2 stops18h 55m

£646

BloomingtonLondon

BMI Bloomington-Normal - LGW London Gatwick

BMILGW

Bloomington-Normal

Tue 9/2

05:00-07:30

2 stops20h 30m

London Gatwick

Tue 16/2

11:15-23:59

2 stops18h 44m

£646

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Wed 20/1

11:45-22:35

1 stop28h 50m

London Gatwick

Mon 8/2

06:30-18:20

1 stop17h 50m

£654

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Tue 3/11

12:45-16:30

1 stop21h 45m

London Gatwick

Tue 10/11

10:05-10:00

1 stop29h 55m

£660

MolineLondon

MLI Moline Quad-City - LGW London Gatwick

MLILGW

Moline Quad-City

Wed 23/9

11:19-09:25

2 stops16h 06m

London Gatwick

Wed 30/9

10:25-22:30

2 stops18h 05m

£664

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Mon 21/9

10:30-09:40

2 stops17h 10m

London Gatwick

Tue 29/9

10:35-21:37

2 stops17h 02m

£664

ChicagoLondon

MDW Chicago Midway - LGW London Gatwick

MDWLGW

Chicago Midway

Tue 27/10

12:27-09:00

2 stops15h 33m

London Gatwick

Tue 10/11

10:00-22:56

2 stops18h 56m

£664

BloomingtonLondon

BMI Bloomington-Normal - LGW London Gatwick

BMILGW

Bloomington-Normal

Wed 23/9

16:32-16:00

2 stops17h 28m

London Gatwick

Wed 30/9

10:25-22:34

2 stops18h 09m

£664

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Mon 11/1

20:15-22:35

1 stop20h 20m

London Gatwick

Thu 21/1

17:25-10:00

1 stop22h 35m

£674

Flights are sorted by cheapest return flights first.

Deals found on 9/8

Showing 1-10 of 60 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, January is the cheapest month in which you can book a flight from Illinois to London Gatwick Airport (average of £354). Flying from Illinois to London Gatwick Airport in December is currently the most expensive (average of £1,026). 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 American Airlines, Turkish Airlines, and Delta fly from Illinois to London Gatwick Airport in about 16h 06m. The time it takes to get you to your destination can typically vary by up to 12h 44m. Illinois and London Gatwick Airport are separated by a distance of 4084 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, January is the cheapest month in which you can book a flight from Illinois to London Gatwick Airport (average of £354). Flying from Illinois to London Gatwick Airport in December is currently the most expensive (average of £1,026). 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
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Ilford
Slough
Hayes
Croydon
Colchester
Brentford
Eastbourne
Watford
Southend-on-Sea
Enfield
Kingston upon Thames
Southall
Dover
Romford
Borehamwood

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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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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