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Cheap flights from London Gatwick Airport to Illinois from £291

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Gatwick Airport to Illinois departing on 6/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from London Gatwick Airport to Illinois

Cheap return flights

American Airlines Logo
11:20 - 20:50LGW-ORD
15h 30m1 stop
American Airlines Logo
19:07 - 07:30ORD-LGW
30h 23m2 stops
£392American Airlines
Find Deal
Sat, 6 Dec - Mon, 8 Dec
Multiple Airlines Logo
14:00 - 07:34LGW-ORD
23h 34m1 stop
Multiple Airlines Logo
18:58 - 10:00ORD-LGW
33h 02m1 stop
£392Multiple Airlines
Find Deal
Thu, 9 Oct - Wed, 15 Oct
Multiple Airlines Logo
15:30 - 12:35LGW-ORD
27h 05m2 stops
Multiple Airlines Logo
06:40 - 06:20ORD-LGW
17h 40m1 stop
£393Multiple Airlines
Find Deal
Wed, 15 Oct - Wed, 22 Oct
American Airlines Logo
12:20 - 23:12LGW-ORD
16h 52m2 stops
American Airlines Logo
13:43 - 08:10ORD-LGW
12h 27m1 stop
£396American Airlines
Find Deal
Wed, 1 Oct - Mon, 6 Oct
Icelandair Logo
11:55 - 17:20LGW-ORD
11h 25m1 stop
Icelandair Logo
18:30 - 10:55ORD-LGW
10h 25m1 stop
£403Icelandair
Find Deal
Mon, 12 Jan - Mon, 26 Jan
Icelandair Logo
15:40 - 21:15LGW-ORD
11h 35m1 stop
Icelandair Logo
19:25 - 14:40ORD-LGW
13h 15m1 stop
£404Icelandair
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Wed, 15 Oct - Sun, 19 Oct
SWISS Logo
18:40 - 12:45LGW-ORD
24h 05m1 stop
SWISS Logo
18:50 - 17:50ORD-LGW
17h 00m1 stop
£425SWISS
Find Deal
Fri, 7 Nov - Fri, 28 Nov
SWISS Logo
18:40 - 13:45LGW-ORD
24h 05m1 stop
SWISS Logo
18:50 - 17:50ORD-LGW
17h 00m1 stop
£428SWISS
Find Deal
Fri, 31 Oct - Mon, 3 Nov
Iberia Logo
20:40 - 20:32LGW-STL
29h 52m2 stops
Iberia Logo
08:42 - 10:55STL-LGW
20h 13m2 stops
£855Iberia
Find Deal
Thu, 2 Oct - Fri, 17 Oct
Iberia Logo
20:40 - 20:26LGW-STL
29h 46m2 stops
Iberia Logo
09:35 - 10:55STL-LGW
19h 20m2 stops
£918Iberia
Find Deal
Tue, 7 Oct - Wed, 22 Oct

Icelandair flights from London Gatwick Airport to Illinois

Our best Icelandair deals on London Gatwick Airport to Illinois flight tickets
Icelandair
12 Jan
LGW11:55London Gatwick
11h 25m
1 stop
ORD17:20Chicago O'Hare Intl
26 Jan
ORD18:30Chicago O'Hare Intl
10h 25m
1 stop
LGW10:55London Gatwick
£403
Find similar
Icelandair
15 Oct
LGW15:40London Gatwick
11h 35m
1 stop
ORD21:15Chicago O'Hare Intl
19 Oct
ORD19:25Chicago O'Hare Intl
13h 15m
1 stop
LGW14:40London Gatwick
£404
Find similar
Icelandair
24 Sept
LGW15:35London Gatwick
11h 40m
1 stop
ORD21:15Chicago O'Hare Intl
30 Sept
ORD19:25Chicago O'Hare Intl
13h 15m
1 stop
LGW14:40London Gatwick
£405
Find similar

American Airlines flights from London Gatwick Airport to Illinois

Our best American Airlines deals on London Gatwick Airport to Illinois flight tickets
American Airlines
6 Dec
LGW11:20London Gatwick
15h 30m
1 stop
ORD20:50Chicago O'Hare Intl
8 Dec
ORD19:07Chicago O'Hare Intl
30h 23m
2 stops
LGW07:30London Gatwick
£392
Find similar
American Airlines
1 Oct
LGW12:20London Gatwick
16h 52m
2 stops
ORD23:12Chicago O'Hare Intl
6 Oct
ORD13:43Chicago O'Hare Intl
12h 27m
1 stop
LGW08:10London Gatwick
£396
Find similar
American Airlines
2 Oct
LGW15:05London Gatwick
20h 36m
2 stops
ORD05:41Chicago O'Hare Intl
5 Oct
ORD15:04Chicago O'Hare Intl
13h 36m
1 stop
LGW10:40London Gatwick
£397
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Gatwick Airport to Illinois 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, momondo users made 279,928 searches. Data last updated 17 September 2025.
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

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Sat 6/12

11:20-20:50

1 stop15h 30m

Chicago O'Hare Intl

Mon 8/12

19:07-07:30

2 stops30h 23m

£392

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 9/10

14:00-07:34

1 stop23h 34m

Chicago O'Hare Intl

Wed 15/10

18:58-10:00

1 stop33h 02m

£392

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 15/10

15:30-12:35

2 stops27h 05m

Chicago O'Hare Intl

Wed 22/10

06:40-06:20

1 stop17h 40m

£393

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 1/10

12:20-23:12

2 stops16h 52m

Chicago O'Hare Intl

Mon 6/10

13:43-08:10

1 stop12h 27m

£396

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Mon 12/1

11:55-17:20

1 stop11h 25m

Chicago O'Hare Intl

Mon 26/1

18:30-10:55

1 stop10h 25m

£403

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 15/10

15:40-21:15

1 stop11h 35m

Chicago O'Hare Intl

Sun 19/10

19:25-14:40

1 stop13h 15m

£404

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Fri 7/11

18:40-12:45

1 stop24h 05m

Chicago O'Hare Intl

Fri 28/11

18:50-17:50

1 stop17h 00m

£425

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Fri 31/10

18:40-13:45

1 stop24h 05m

Chicago O'Hare Intl

Mon 3/11

18:50-17:50

1 stop17h 00m

£428

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 2/10

20:40-20:32

2 stops29h 52m

Lambert-St Louis

Fri 17/10

08:42-10:55

2 stops20h 13m

£855

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Tue 7/10

20:40-20:26

2 stops29h 46m

Lambert-St Louis

Wed 22/10

09:35-10:55

2 stops19h 20m

£918

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

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

What is the cheapest month to fly to Illinois?

The month of January is, on average, the cheapest month to fly to Illinois from London Gatwick Airport, with most prices found around £387. If you aren’t able to travel to Illinois during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of £421.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart on your flight to Illinois is on a Wednesday when prices can be found for as low as £466. This is often the case because there is less demand to fly during this day of the week. Flights from London Gatwick Airport to Illinois on a Friday will generally be more expensive and average around £532. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our data shows that the cheapest London Gatwick Airport to Illinois flights are usually those with departure times in the morning. Our users have found flights to Illinois in the morning for as low as £493. In the evening is when there is more demand to fly to Illinois, so prices are often more expensive at around £604 per ticket.

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from London Gatwick Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around £479 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from London Gatwick Airport for as low as £367 on momondo.

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

Direct flights

None
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

  • 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?

  • 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
IcelandairPriceFrom £307Free CancellationRating
7.0
544 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.

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