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Cheap flights from London Gatwick Airport to Illinois from £368

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 21/4. 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

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
16:35 - 14:45LGW-ORD
28h 10m1 stop
TAP AIR PORTUGAL Logo
20:15 - 15:45ORD-LGW
13h 30m1 stop
£409TAP AIR PORTUGAL
Find Deal
Sat, 17 Jan - Fri, 23 Jan
Multiple Airlines Logo
14:00 - 23:06LGW-ORD
15h 06m1 stop
Multiple Airlines Logo
06:48 - 10:00ORD-LGW
21h 12m1 stop
£410Multiple Airlines
Find Deal
Mon, 24 Nov - Fri, 28 Nov
Multiple Airlines Logo
14:00 - 07:26LGW-ORD
23h 26m1 stop
Multiple Airlines Logo
16:22 - 06:00ORD-LGW
31h 38m2 stops
£413Multiple Airlines
Find Deal
Thu, 20 Nov - Tue, 2 Dec
Icelandair Logo
11:55 - 17:20LGW-ORD
11h 25m1 stop
Icelandair Logo
18:30 - 10:55ORD-LGW
10h 25m1 stop
£418Icelandair
Find Deal
Tue, 18 Nov - Tue, 25 Nov
Icelandair Logo
11:55 - 17:20LGW-ORD
11h 25m1 stop
Icelandair Logo
18:30 - 10:55ORD-LGW
10h 25m1 stop
£419Icelandair
Find Deal
Wed, 26 Nov - Tue, 2 Dec
American Airlines Logo
12:30 - 12:46LGW-STL
30h 16m2 stops
American Airlines Logo
07:35 - 09:00STL-LGW
20h 25m2 stops
£547American Airlines
Find Deal
Thu, 5 Mar - Mon, 9 Mar
American Airlines Logo
12:30 - 12:46LGW-STL
30h 16m2 stops
American Airlines Logo
09:39 - 09:00STL-LGW
18h 21m2 stops
£548American Airlines
Find Deal
Thu, 5 Mar - Mon, 9 Mar
Turkish Airlines Logo
06:20 - 15:46LGW-STL
39h 26m2 stops
Turkish Airlines Logo
17:24 - 16:10STL-LGW
40h 46m2 stops
£1,009Turkish Airlines
Find Deal
Mon, 24 Nov - Mon, 1 Dec
Turkish Airlines Logo
10:20 - 15:46LGW-STL
35h 26m2 stops
Turkish Airlines Logo
17:24 - 16:10STL-LGW
40h 46m2 stops
£1,009Turkish Airlines
Find Deal
Mon, 24 Nov - Mon, 1 Dec
British Airways Logo
19:40 - 21:27LGW-CMI
30h 47m2 stops
British Airways Logo
13:16 - 20:00CMI-LGW
24h 44m2 stops
£3,379British Airways
Find Deal
Fri, 27 Mar - Tue, 31 Mar

Icelandair flights from London Gatwick Airport to Illinois

Our best Icelandair deals on London Gatwick Airport to Illinois flight tickets
Icelandair
18 Nov
LGW11:55London Gatwick
11h 25m
1 stop
ORD17:20Chicago O'Hare Intl
25 Nov
ORD18:30Chicago O'Hare Intl
10h 25m
1 stop
LGW10:55London Gatwick
£418
Find similar
Icelandair
26 Nov
LGW11:55London Gatwick
11h 25m
1 stop
ORD17:20Chicago O'Hare Intl
2 Dec
ORD18:30Chicago O'Hare Intl
10h 25m
1 stop
LGW10:55London Gatwick
£419
Find similar
Icelandair
26 Nov
LGW11:55London Gatwick
11h 25m
1 stop
ORD17:20Chicago O'Hare Intl
3 Dec
ORD18:30Chicago O'Hare Intl
10h 25m
1 stop
LGW10:55London Gatwick
£422
Find similar

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
17 Jan
LGW16:35London Gatwick
28h 10m
1 stop
ORD14:45Chicago O'Hare Intl
23 Jan
ORD20:15Chicago O'Hare Intl
13h 30m
1 stop
LGW15:45London Gatwick
£409
Find similar
TAP AIR PORTUGAL
20 Nov
LGW16:00London Gatwick
29h 25m
1 stop
ORD15:25Chicago O'Hare Intl
30 Nov
ORD20:25Chicago O'Hare Intl
13h 20m
1 stop
LGW15:45London Gatwick
£425
Find similar
TAP AIR PORTUGAL
25 Nov
LGW16:35London Gatwick
28h 25m
1 stop
ORD15:00Chicago O'Hare Intl
30 Nov
ORD20:25Chicago O'Hare Intl
18h 10m
2 stops
LGW20:35London Gatwick
£442
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 3 November 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 17/1

16:35-14:45

1 stop28h 10m

Chicago O'Hare Intl

Fri 23/1

20:15-15:45

1 stop13h 30m

£409

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Mon 24/11

14:00-23:06

1 stop15h 06m

Chicago O'Hare Intl

Fri 28/11

06:48-10:00

1 stop21h 12m

£410

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 20/11

14:00-07:26

1 stop23h 26m

Chicago O'Hare Intl

Tue 2/12

16:22-06:00

2 stops31h 38m

£413

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Tue 18/11

11:55-17:20

1 stop11h 25m

Chicago O'Hare Intl

Tue 25/11

18:30-10:55

1 stop10h 25m

£418

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 26/11

11:55-17:20

1 stop11h 25m

Chicago O'Hare Intl

Tue 2/12

18:30-10:55

1 stop10h 25m

£419

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 5/3

12:30-12:46

2 stops30h 16m

Lambert-St Louis

Mon 9/3

07:35-09:00

2 stops20h 25m

£547

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 5/3

12:30-12:46

2 stops30h 16m

Lambert-St Louis

Mon 9/3

09:39-09:00

2 stops18h 21m

£548

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Mon 24/11

06:20-15:46

2 stops39h 26m

Lambert-St Louis

Mon 1/12

17:24-16:10

2 stops40h 46m

£1,009

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Mon 24/11

10:20-15:46

2 stops35h 26m

Lambert-St Louis

Mon 1/12

17:24-16:10

2 stops40h 46m

£1,009

LondonChampaign

LGW - CMI

LGWCMI

London Gatwick

Fri 27/3

19:40-21:27

2 stops30h 47m

Champaign University-Willard

Tue 31/3

13:16-20:00

2 stops24h 44m

£3,379

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 £402. If you aren’t able to travel to Illinois during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of £448.

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 £484. 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 £552. 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 £512. In the evening is when there is more demand to fly to Illinois, so prices are often more expensive at around £627 per ticket.

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 £321Free CancellationRating
7.1
568 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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