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

Delta is the most popular carrier 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 November 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.

£452 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.

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

£518Icelandair

Fri, 9 Apr - Fri, 16 Apr

14:40 - 18:20LGW London Gatwick-ORD Chicago O'Hare Intl

32h 40m1 stop Reykjavik Keflavik Intl

22:25 - 14:40ORD Chicago O'Hare Intl-LGW London Gatwick

10h 15m1 stop Reykjavik Keflavik Intl

£521Icelandair

Wed, 24 Mar - Wed, 14 Apr

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

11h 45m1 stop Reykjavik Keflavik Intl

22:25 - 14:40ORD Chicago O'Hare Intl-LGW London Gatwick

10h 15m1 stop Reykjavik Keflavik Intl

£524Icelandair

Fri, 9 Apr - Fri, 16 Apr

17:15 - 17:20LGW London Gatwick-ORD Chicago O'Hare Intl

30h 05m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

18:30 - 21:45ORD Chicago O'Hare Intl-LGW London Gatwick

21h 15m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

£527Multiple Airlines

Thu, 24 Dec - Wed, 6 Jan

16:00 - 17:20LGW London Gatwick-ORD Chicago O'Hare Intl

31h 20m3 stops Kastrup Copenhagen Stockholm Arlanda Reykjavik Keflavik Intl

18:30 - 10:35ORD Chicago O'Hare Intl-LGW London Gatwick

34h 05m3 stops Reykjavik Keflavik Intl Stockholm Arlanda Kastrup Copenhagen

£529Multiple Airlines

Sun, 10 Jan - Mon, 18 Jan

16:00 - 15:30LGW London Gatwick-ORD Chicago O'Hare Intl

29h 30m1 stop Lisbon Humberto Delgado

20:10 - 20:35ORD Chicago O'Hare Intl-LGW London Gatwick

18h 25m2 stops Lisbon Humberto Delgado Porto

£530TAP AIR PORTUGAL

Thu, 3 Dec - Sun, 6 Dec

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

32h 35m1 stop Reykjavik Keflavik Intl

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

13h 15m1 stop Reykjavik Keflavik Intl

£530Icelandair

Sat, 10 Apr - Sat, 17 Apr

08:50 - 17:20LGW London Gatwick-ORD Chicago O'Hare Intl

14h 30m2 stops Dublin Reykjavik Keflavik Intl

18:30 - 13:00ORD Chicago O'Hare Intl-LGW London Gatwick

12h 30m2 stops Reykjavik Keflavik Intl Dublin

£530Multiple Airlines

Wed, 2 Dec - Mon, 7 Dec

08:05 - 17:20LGW London Gatwick-ORD Chicago O'Hare Intl

15h 15m2 stops Paris Charles de Gaulle Reykjavik Keflavik Intl

18:30 - 16:40ORD Chicago O'Hare Intl-LGW London Gatwick

16h 10m2 stops Reykjavik Keflavik Intl Paris Charles de Gaulle

£530Multiple Airlines

Tue, 1 Dec - Tue, 8 Dec

07:00 - 17:20LGW London Gatwick-ORD Chicago O'Hare Intl

16h 20m2 stops Paris Charles de Gaulle Reykjavik Keflavik Intl

18:30 - 15:45ORD Chicago O'Hare Intl-LGW London Gatwick

15h 15m2 stops Reykjavik Keflavik Intl Paris Charles de Gaulle

£530Multiple Airlines

Mon, 25 Jan - Fri, 29 Jan

Cheap last-minute flights

Enter your travel dates to find the best prices.

07:00 - 17:20LGW London Gatwick-ORD Chicago O'Hare Intl

16h 20m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

18:30 - 08:35ORD Chicago O'Hare Intl-LGW London Gatwick

32h 05m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Stockholm Arlanda

£557Multiple Airlines

Wed, 18 Nov - Sat, 5 Dec

07:00 - 17:20LGW London Gatwick-ORD Chicago O'Hare Intl

16h 20m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

18:30 - 15:20ORD Chicago O'Hare Intl-LGW London Gatwick

14h 50m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

£578Multiple Airlines

Wed, 18 Nov - Sat, 5 Dec

09:50 - 08:46LGW London Gatwick-ORD Chicago O'Hare Intl

28h 56m1 stop Orlando

05:40 - 06:50ORD Chicago O'Hare Intl-LGW London Gatwick

19h 10m1 stop Orlando

£578Multiple Airlines

Wed, 18 Nov - Thu, 26 Nov

21:35 - 15:30LGW London Gatwick-ORD Chicago O'Hare Intl

47h 55m2 stops Porto Lisbon Humberto Delgado

20:10 - 15:45ORD Chicago O'Hare Intl-LGW London Gatwick

13h 35m1 stop Lisbon Humberto Delgado

£585TAP AIR PORTUGAL

Mon, 16 Nov - Sun, 6 Dec

09:50 - 00:21LGW London Gatwick-ORD Chicago O'Hare Intl

20h 31m2 stops Orlando Denver Intl

05:40 - 06:50ORD Chicago O'Hare Intl-LGW London Gatwick

19h 10m1 stop Orlando

£594Multiple Airlines

Wed, 18 Nov - Thu, 26 Nov

10:40 - 15:30LGW London Gatwick-ORD Chicago O'Hare Intl

34h 50m1 stop Lisbon Humberto Delgado

17:45 - 14:00ORD Chicago O'Hare Intl-LGW London Gatwick

14h 15m1 stop Lisbon Humberto Delgado

£603TAP AIR PORTUGAL

Tue, 17 Nov - Wed, 4 Aug

10:40 - 15:30LGW London Gatwick-ORD Chicago O'Hare Intl

34h 50m1 stop Lisbon Humberto Delgado

17:45 - 15:40ORD Chicago O'Hare Intl-LGW London Gatwick

15h 55m1 stop Lisbon Humberto Delgado

£603TAP AIR PORTUGAL

Tue, 17 Nov - Fri, 6 Aug

10:40 - 15:30LGW London Gatwick-ORD Chicago O'Hare Intl

34h 50m1 stop Lisbon Humberto Delgado

17:45 - 15:10ORD Chicago O'Hare Intl-LGW London Gatwick

15h 25m1 stop Lisbon Humberto Delgado

£603TAP AIR PORTUGAL

Tue, 17 Nov - Sun, 8 Aug

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

11h 25m1 stop Reykjavik Keflavik Intl

19:25 - 11:45ORD Chicago O'Hare Intl-LGW London Gatwick

10h 20m1 stop Reykjavik Keflavik Intl

£697Icelandair

Mon, 16 Nov - Thu, 5 Aug

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

11h 25m1 stop Reykjavik Keflavik Intl

22:25 - 14:40ORD Chicago O'Hare Intl-LGW London Gatwick

10h 15m1 stop Reykjavik Keflavik Intl

£697Icelandair

Mon, 16 Nov - Fri, 6 Aug

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Icelandair flights from London Gatwick Airport to Illinois

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

Icelandair

9 Apr

LGW15:40London Gatwick

11h 45m

1 stop

ORD21:25Chicago O'Hare Intl

16 Apr

ORD19:25Chicago O'Hare Intl

13h 15m

1 stop

LGW14:40London Gatwick

£518

Icelandair

9 Apr

LGW15:40London Gatwick

11h 45m

1 stop

ORD21:25Chicago O'Hare Intl

16 Apr

ORD22:25Chicago O'Hare Intl

10h 15m

1 stop

LGW14:40London Gatwick

£524

Icelandair

24 Dec

LGW11:55London Gatwick

11h 25m

1 stop

ORD17:20Chicago O'Hare Intl

31 Dec

ORD18:30Chicago O'Hare Intl

10h 25m

1 stop

LGW10:55London Gatwick

£533

TAP AIR PORTUGAL flights from London Gatwick Airport to Illinois

Our best TAP AIR PORTUGAL deals on London Gatwick Airport to Illinois flight tickets

TAP AIR PORTUGAL

24 Nov

LGW21:20London Gatwick

24h 10m

2 stops

ORD15:30Chicago O'Hare Intl

29 Nov

ORD20:10Chicago O'Hare Intl

31h 40m

1 stop

LGW09:50London Gatwick

£533

TAP AIR PORTUGAL

29 Jan

LGW21:35London Gatwick

47h 55m

2 stops

ORD15:30Chicago O'Hare Intl

7 Feb

ORD20:10Chicago O'Hare Intl

13h 35m

1 stop

LGW15:45London Gatwick

£535

TAP AIR PORTUGAL

30 Mar

LGW16:25London Gatwick

29h 35m

1 stop

ORD16:00Chicago O'Hare Intl

10 Apr

ORD17:45Chicago O'Hare Intl

34h 05m

1 stop

LGW09:50London Gatwick

£545

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 9/4

15:40-21:25

1 stop11h 45m

Chicago O'Hare Intl

Fri 16/4

19:25-14:40

1 stop13h 15m

£518

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Wed 24/3

14:40-18:20

1 stop32h 40m

Chicago O'Hare Intl

Wed 14/4

22:25-14:40

1 stop10h 15m

£521

Fastest return journey

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Fri 9/4

15:40-21:25

1 stop11h 45m

Chicago O'Hare Intl

Fri 16/4

22:25-14:40

1 stop10h 15m

£524

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Thu 24/12

17:15-17:20

2 stops30h 05m

Chicago O'Hare Intl

Wed 6/1

18:30-21:45

2 stops21h 15m

£527

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Sun 10/1

16:00-17:20

3 stops31h 20m

Chicago O'Hare Intl

Mon 18/1

18:30-10:35

3 stops34h 05m

£529

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Thu 3/12

16:00-15:30

1 stop29h 30m

Chicago O'Hare Intl

Sun 6/12

20:10-20:35

2 stops18h 25m

£530

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Sat 10/4

15:40-18:15

1 stop32h 35m

Chicago O'Hare Intl

Sat 17/4

19:25-14:40

1 stop13h 15m

£530

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Wed 2/12

08:50-17:20

2 stops14h 30m

Chicago O'Hare Intl

Mon 7/12

18:30-13:00

2 stops12h 30m

£530

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Tue 1/12

08:05-17:20

2 stops15h 15m

Chicago O'Hare Intl

Tue 8/12

18:30-16:40

2 stops16h 10m

£530

LondonChicago

LGW London Gatwick - ORD Chicago O'Hare Intl

LGWORD

London Gatwick

Mon 25/1

07:00-17:20

2 stops16h 20m

Chicago O'Hare Intl

Fri 29/1

18:30-15:45

2 stops15h 15m

£530

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 £458. If you aren’t able to travel to Illinois during the month of May, then flying in September is also cheap. Prices for this month can be found on momondo for an average of £491.

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

You could potentially save up to 43% 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	£452
Fastest flight time	11h 25m
Direct flights	None

The best one-way flight to Illinois from London Gatwick Airport in the past 72 hours is £452. The best return flight deal from London Gatwick Airport to Illinois found on momondo in the last 72 hours is £518.

The fastest flight from London Gatwick Airport to Illinois takes 11h 25m

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 November 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 £358	Free Cancellation	Rating 7.0 766 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.