What is the cheapest airline that flies from London Gatwick to Illinois?

SWISS and Icelandair are the most popular carriers operating from London Gatwick to Illinois

How many operators does momondo search for flights from London Gatwick Airport to Illinois?

There is 1 operator available for flights from London Gatwick Airport to Illinois as of September 2026.

How old do you have to be to fly from London Gatwick Airport to Illinois?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Gatwick Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£358 Cheap Flights from London Gatwick Airport to Illinois in 2026/27

Find the cheapest flights from London Gatwick Airport to Illinois

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

11:55 - 12:51LGW London Gatwick-ORD Chicago O'Hare Intl

29h 56m3 stops Reykjavik Keflavik Intl Orlando Atlanta Hartsfield-Jackson

09:51 - 10:55ORD Chicago O'Hare Intl-LGW London Gatwick

19h 04m2 stops Orlando Reykjavik Keflavik Intl

£538Multiple Airlines

Fri, 30 Oct - Thu, 12 Nov

17:55 - 13:10LGW London Gatwick-ORD Chicago O'Hare Intl

25h 15m2 stops Berlin Brandenburg Frankfurt am Main

16:20 - 22:30ORD Chicago O'Hare Intl-LGW London Gatwick

24h 10m2 stops Frankfurt am Main Berlin Brandenburg

£539Multiple Airlines

Mon, 16 Nov - Mon, 30 Nov

11:55 - 12:51LGW London Gatwick-ORD Chicago O'Hare Intl

29h 56m3 stops Reykjavik Keflavik Intl Orlando Atlanta Hartsfield-Jackson

09:51 - 10:55ORD Chicago O'Hare Intl-LGW London Gatwick

19h 04m2 stops Orlando Reykjavik Keflavik Intl

£539Multiple Airlines

Fri, 30 Oct - Thu, 12 Nov

11:55 - 12:51LGW London Gatwick-ORD Chicago O'Hare Intl

29h 56m3 stops Reykjavik Keflavik Intl Orlando Atlanta Hartsfield-Jackson

06:30 - 10:55ORD Chicago O'Hare Intl-LGW London Gatwick

22h 25m3 stops Denver Intl Orlando Reykjavik Keflavik Intl

£541Multiple Airlines

Fri, 30 Oct - Thu, 12 Nov

15:40 - 18:15LGW London Gatwick-ORD Chicago O'Hare Intl

32h 35m1 stop Reykjavik Keflavik Intl

18:30 - 10:55ORD Chicago O'Hare Intl-LGW London Gatwick

10h 25m1 stop Reykjavik Keflavik Intl

£542Icelandair

Wed, 21 Oct - Sat, 7 Nov

19:50 - 13:10LGW London Gatwick-ORD Chicago O'Hare Intl

23h 20m2 stops Lyon-Saint Exupéry Frankfurt am Main

21:50 - 20:25ORD Chicago O'Hare Intl-LGW London Gatwick

16h 35m2 stops Munich Franz Josef Strauss Lyon-Saint Exupéry

£542Multiple Airlines

Thu, 5 Nov - Tue, 10 Nov

11:55 - 08:46LGW London Gatwick-ORD Chicago O'Hare Intl

25h 51m2 stops Reykjavik Keflavik Intl Orlando

19:28 - 10:55ORD Chicago O'Hare Intl-LGW London Gatwick

33h 27m3 stops Atlanta Hartsfield-Jackson Orlando Reykjavik Keflavik Intl

£542Multiple Airlines

Fri, 30 Oct - Wed, 11 Nov

08:40 - 19:15LGW London Gatwick-ORD Chicago O'Hare Intl

16h 35m1 stop Dublin

16:55 - 08:20ORD Chicago O'Hare Intl-LGW London Gatwick

10h 25m1 stop Dublin

£542Multiple Airlines

Thu, 22 Oct - Mon, 26 Oct

09:45 - 19:15LGW London Gatwick-ORD Chicago O'Hare Intl

15h 30m1 stop Dublin

16:55 - 08:20ORD Chicago O'Hare Intl-LGW London Gatwick

10h 25m1 stop Dublin

£542Multiple Airlines

Thu, 22 Oct - Mon, 26 Oct

11:55 - 17:20LGW London Gatwick-ORD Chicago O'Hare Intl

11h 25m1 stop Reykjavik Keflavik Intl

18:30 - 10:55ORD Chicago O'Hare Intl-LGW London Gatwick

10h 25m1 stop Reykjavik Keflavik Intl

£543Icelandair

Thu, 17 Dec - Mon, 28 Dec

Cheap last-minute flights

Enter your travel dates to find the best prices.

09:45 - 19:15LGW London Gatwick-ORD Chicago O'Hare Intl

15h 30m1 stop Dublin

15:45 - 09:25ORD Chicago O'Hare Intl-LGW London Gatwick

11h 40m1 stop Dublin

£540Multiple Airlines

Thu, 1 Oct - Thu, 8 Oct

08:40 - 14:00LGW London Gatwick-ORD Chicago O'Hare Intl

11h 20m1 stop Dublin

15:45 - 09:20ORD Chicago O'Hare Intl-LGW London Gatwick

11h 35m1 stop Dublin

£541Multiple Airlines

Thu, 1 Oct - Wed, 14 Oct

15:40 - 21:25LGW London Gatwick-ORD Chicago O'Hare Intl

11h 45m1 stop Reykjavik Keflavik Intl

19:25 - 14:40ORD Chicago O'Hare Intl-LGW London Gatwick

13h 15m1 stop Reykjavik Keflavik Intl

£544Icelandair

Fri, 2 Oct - Tue, 6 Oct

06:00 - 14:25LGW London Gatwick-ORD Chicago O'Hare Intl

14h 25m1 stop Madrid Barajas

16:55 - 11:40ORD Chicago O'Hare Intl-LGW London Gatwick

12h 45m1 stop Madrid Barajas

£548Multiple Airlines

Thu, 1 Oct - Mon, 5 Oct

15:40 - 21:25LGW London Gatwick-ORD Chicago O'Hare Intl

11h 45m1 stop Reykjavik Keflavik Intl

19:25 - 14:40ORD Chicago O'Hare Intl-LGW London Gatwick

13h 15m1 stop Reykjavik Keflavik Intl

£549Icelandair

Wed, 30 Sep - Tue, 6 Oct

06:00 - 14:25LGW London Gatwick-ORD Chicago O'Hare Intl

14h 25m1 stop Madrid Barajas

16:55 - 11:40ORD Chicago O'Hare Intl-LGW London Gatwick

12h 45m1 stop Madrid Barajas

£559Multiple Airlines

Thu, 1 Oct - Mon, 5 Oct

08:55 - 14:00LGW London Gatwick-ORD Chicago O'Hare Intl

11h 05m1 stop Dublin

15:45 - 08:20ORD Chicago O'Hare Intl-LGW London Gatwick

10h 35m1 stop Dublin

£561Multiple Airlines

Fri, 2 Oct - Thu, 15 Oct

20:40 - 14:25LGW London Gatwick-ORD Chicago O'Hare Intl

23h 45m1 stop Madrid Barajas

16:55 - 10:50ORD Chicago O'Hare Intl-LGW London Gatwick

11h 55m1 stop Madrid Barajas

£579Iberia

Wed, 30 Sep - Mon, 12 Oct

20:40 - 14:25LGW London Gatwick-ORD Chicago O'Hare Intl

23h 45m1 stop Madrid Barajas

16:55 - 10:50ORD Chicago O'Hare Intl-LGW London Gatwick

11h 55m1 stop Madrid Barajas

£579Iberia

Wed, 30 Sep - Tue, 13 Oct

06:00 - 14:25LGW London Gatwick-ORD Chicago O'Hare Intl

14h 25m1 stop Madrid Barajas

16:55 - 11:40ORD Chicago O'Hare Intl-LGW London Gatwick

12h 45m1 stop Madrid Barajas

£579Multiple Airlines

Thu, 1 Oct - Wed, 14 Oct

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Iberia flights from London Gatwick Airport to Illinois

Our best Iberia deals on London Gatwick Airport to Illinois flight tickets

Iberia

1 Mar

LGW11:15London Gatwick

16h 40m

1 stop

ORD21:55Chicago O'Hare Intl

13 Mar

ORD19:05Chicago O'Hare Intl

30h 25m

1 stop

LGW07:30London Gatwick

£558

Iberia

5 Oct

LGW11:30London Gatwick

38h 58m

2 stops

ORD20:28Chicago O'Hare Intl

14 Oct

ORD16:55Chicago O'Hare Intl

21h 05m

1 stop

LGW20:00London Gatwick

£577

Iberia

30 Sept

LGW20:40London Gatwick

23h 45m

1 stop

ORD14:25Chicago O'Hare Intl

13 Oct

ORD16:55Chicago O'Hare Intl

11h 55m

1 stop

LGW10:50London Gatwick

£579

Icelandair flights from London Gatwick Airport to Illinois

Our best Icelandair deals on London Gatwick Airport to Illinois flight tickets

Icelandair

21 Oct

LGW15:40London Gatwick

32h 35m

1 stop

ORD18:15Chicago O'Hare Intl

7 Nov

ORD18:30Chicago O'Hare Intl

10h 25m

1 stop

LGW10:55London Gatwick

£542

Icelandair

17 Dec

LGW11:55London Gatwick

11h 25m

1 stop

ORD17:20Chicago O'Hare Intl

29 Dec

ORD18:30Chicago O'Hare Intl

10h 25m

1 stop

LGW10:55London Gatwick

£543

Icelandair

2 Oct

LGW15:40London Gatwick

11h 45m

1 stop

ORD21:25Chicago O'Hare Intl

6 Oct

ORD19:25Chicago O'Hare Intl

13h 15m

1 stop

LGW14:40London Gatwick

£544

momondo Fare Finder

Use the filters below to find and compare flights from London Gatwick Airport to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Fri 30/10

11:55-12:51

3 stops29h 56m

Chicago O'Hare Intl

Thu 12/11

09:51-10:55

2 stops19h 04m

£538

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Mon 16/11

17:55-13:10

2 stops25h 15m

Chicago O'Hare Intl

Mon 30/11

16:20-22:30

2 stops24h 10m

£539

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Fri 30/10

11:55-12:51

3 stops29h 56m

Chicago O'Hare Intl

Thu 12/11

09:51-10:55

2 stops19h 04m

£539

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Fri 30/10

11:55-12:51

3 stops29h 56m

Chicago O'Hare Intl

Thu 12/11

06:30-10:55

3 stops22h 25m

£541

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Wed 21/10

15:40-18:15

1 stop32h 35m

Chicago O'Hare Intl

Sat 7/11

18:30-10:55

1 stop10h 25m

£542

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Thu 5/11

19:50-13:10

2 stops23h 20m

Chicago O'Hare Intl

Tue 10/11

21:50-20:25

2 stops16h 35m

£542

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Fri 30/10

11:55-08:46

2 stops25h 51m

Chicago O'Hare Intl

Wed 11/11

19:28-10:55

3 stops33h 27m

£542

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Thu 22/10

08:40-19:15

1 stop16h 35m

Chicago O'Hare Intl

Mon 26/10

16:55-08:20

1 stop10h 25m

£542

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Thu 22/10

09:45-19:15

1 stop15h 30m

Chicago O'Hare Intl

Mon 26/10

16:55-08:20

1 stop10h 25m

£542

Fastest return journey

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Thu 17/12

11:55-17:20

1 stop11h 25m

Chicago O'Hare Intl

Mon 28/12

18:30-10:55

1 stop10h 25m

£543

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Gatwick Airport to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Illinois?

The month of May is, on average, the cheapest month to fly to Illinois from London Gatwick Airport, with most prices found around £480. If you aren’t able to travel to Illinois during the month of May, then flying in October is also cheap. Prices for this month can be found on momondo for an average of £485.

Can stopping save me money on London Gatwick Airport to Illinois flights?

You could potentially save up to 78% on your flight if you consider stops on a London Gatwick Airport to Illinois flight.

Cheap London Gatwick Airport to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Gatwick Airport to Illinois

Best price found	£358
Fastest flight time	12h 15m
Direct flights	None

The best one-way flight to Illinois from London Gatwick Airport in the past 72 hours is £358. The best return flight deal from London Gatwick Airport to Illinois found on momondo in the last 72 hours is £538.

The fastest flight from London Gatwick Airport to Illinois takes 12h 15m

There are no direct flights from London Gatwick Airport to Illinois. There are no popular flight routes from London Gatwick Airport to Illinois.

Search flight deals

Frequently asked questions about flying from London Gatwick Airport to Illinois

When did momondo last update prices for flights from London Gatwick Airport to Illinois?
Prices for flights from London Gatwick Airport to Illinois refresh daily.
How many operators does momondo search for flights from London Gatwick Airport to Illinois?
There is 1 operator available for flights from London Gatwick Airport to Illinois as of September 2026.
How old do you have to be to fly from London Gatwick Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Gatwick Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from London Gatwick Airport to Illinois

Compare and see reviews for airlines that fly from London Gatwick Airport to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom £360	Free Cancellation	Rating 6.9 752 reviews		Search Icelandair flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Illinois?

It is quick and easy to find London to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

Can I find flights from London to Illinois with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Illinois flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Illinois?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Illinois.

I’m not ready to book a flight from London to Illinois right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of London to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.