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

There are 2 operators available for flights from London Gatwick Airport to Illinois as of August 2025.

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.

£187 Cheap Flights from London Gatwick Airport to Illinois in 2025

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Find the cheapest flights from London Gatwick Airport to Illinois

Round-trip

One-way

Last minute

Cheap return flights

14:00 - 16:12LGW-ORD

32h 12m1 stop

17:17 - 10:00ORD-LGW

34h 43m1 stop

£308

Find Deal

Wed, 10 Sep - Sun, 21 Sep

14:00 - 16:12LGW-ORD

32h 12m1 stop

06:30 - 10:00ORD-LGW

21h 30m1 stop

£309

Find Deal

Thu, 11 Sep - Mon, 22 Sep

14:00 - 16:12LGW-ORD

32h 12m1 stop

06:30 - 10:00ORD-LGW

21h 30m1 stop

£331

Find Deal

Thu, 11 Sep - Wed, 24 Sep

14:00 - 16:12LGW-ORD

32h 12m1 stop

06:30 - 10:00ORD-LGW

21h 30m1 stop

£332

Find Deal

Thu, 11 Sep - Wed, 24 Sep

14:00 - 18:50LGW-ORD

34h 50m1 stop

06:30 - 10:10ORD-LGW

21h 40m1 stop

£332

Find Deal

Wed, 17 Sep - Sun, 21 Sep

15:40 - 18:15LGW-ORD

32h 35m1 stop

22:15 - 14:40ORD-LGW

10h 25m1 stop

£348Icelandair

Find Deal

Thu, 2 Oct - Sun, 5 Oct

15:40 - 18:15LGW-ORD

32h 35m1 stop

22:15 - 14:40ORD-LGW

10h 25m1 stop

£350Icelandair

Find Deal

Thu, 2 Oct - Sun, 5 Oct

16:35 - 15:00LGW-ORD

28h 25m1 stop

19:10 - 15:05ORD-LGW

13h 55m1 stop

£385TAP AIR PORTUGAL

Find Deal

Tue, 18 Nov - Wed, 26 Nov

14:30 - 13:12LGW-STL

28h 42m2 stops

18:55 - 08:10STL-LGW

31h 15m2 stops

£811Finnair

Find Deal

Sat, 23 Aug - Tue, 2 Sep

20:40 - 21:49LGW-CMI

31h 09m2 stops

11:17 - 20:00CMI-LGW

26h 43m2 stops

£842British Airways

Find Deal

Fri, 12 Sep - Fri, 19 Sep

Icelandair flights from London Gatwick Airport to Illinois

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

Icelandair

2 Oct

LGW15:40London Gatwick

32h 35m

1 stop

ORD18:15Chicago O'Hare Intl

5 Oct

ORD22:15Chicago O'Hare Intl

10h 25m

1 stop

LGW14:40London Gatwick

£348

Find similar

Icelandair

2 Oct

LGW15:40London Gatwick

32h 35m

1 stop

ORD18:15Chicago O'Hare Intl

5 Oct

ORD22:15Chicago O'Hare Intl

10h 25m

1 stop

LGW14:40London Gatwick

£350

Find similar

Icelandair

25 Aug

LGW15:40London Gatwick

11h 35m

1 stop

ORD21:15Chicago O'Hare Intl

6 Sept

ORD19:25Chicago O'Hare Intl

10h 20m

1 stop

LGW11:45London Gatwick

£351

Find similar

SWISS flights from London Gatwick Airport to Illinois

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

SWISS

14 Aug

LGW18:40London Gatwick

23h 30m

1 stop

ORD12:10Chicago O'Hare Intl

11 May

ORD21:25Chicago O'Hare Intl

14h 25m

2 stops

LGW17:50London Gatwick

£692

Find similar

SWISS

14 Aug

LGW18:40London Gatwick

23h 30m

1 stop

ORD12:10Chicago O'Hare Intl

11 May

ORD21:25Chicago O'Hare Intl

14h 25m

2 stops

LGW17:50London Gatwick

£694

Find similar

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

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 10/9

14:00-16:12

1 stop32h 12m

Chicago O'Hare Intl

Sun 21/9

17:17-10:00

1 stop34h 43m

£308

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 11/9

14:00-16:12

1 stop32h 12m

Chicago O'Hare Intl

Mon 22/9

06:30-10:00

1 stop21h 30m

£309

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 11/9

14:00-16:12

1 stop32h 12m

Chicago O'Hare Intl

Wed 24/9

06:30-10:00

1 stop21h 30m

£331

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 11/9

14:00-16:12

1 stop32h 12m

Chicago O'Hare Intl

Wed 24/9

06:30-10:00

1 stop21h 30m

£332

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 17/9

14:00-18:50

1 stop34h 50m

Chicago O'Hare Intl

Sun 21/9

06:30-10:10

1 stop21h 40m

£332

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 2/10

15:40-18:15

1 stop32h 35m

Chicago O'Hare Intl

Sun 5/10

22:15-14:40

1 stop10h 25m

£348

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 2/10

15:40-18:15

1 stop32h 35m

Chicago O'Hare Intl

Sun 5/10

22:15-14:40

1 stop10h 25m

£350

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Tue 18/11

16:35-15:00

1 stop28h 25m

Chicago O'Hare Intl

Wed 26/11

19:10-15:05

1 stop13h 55m

£385

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Sat 23/8

14:30-13:12

2 stops28h 42m

Lambert-St Louis

Tue 2/9

18:55-08:10

2 stops31h 15m

£811

LondonChampaign

LGW - CMI

LGWCMI

London Gatwick

Fri 12/9

20:40-21:49

2 stops31h 09m

Champaign University-Willard

Fri 19/9

11:17-20:00

2 stops26h 43m

£842

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

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 £399. 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 £411.

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 £481. 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 £548. 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 £508. In the evening is when there is more demand to fly to Illinois, so prices are often more expensive at around £623 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 £505 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

Best price found	£187
Fastest flight time	11h 15m
Direct flights	None
Airports in Illinois	3 airports

The best one-way flight to Illinois from London Gatwick Airport in the past 72 hours is £187. The best return flight deal from London Gatwick Airport to Illinois found on momondo in the last 72 hours is £308.

The fastest flight from London Gatwick Airport to Illinois takes 11h 15m

There are no direct flights from London Gatwick Airport to Illinois. Popular non-direct routes for this connection are London Gatwick Airport - Chicago Midway Airport and London Gatwick Airport - Chicago O'Hare Intl Airport.

There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)

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?
There are 2 operators available for flights from London Gatwick Airport to Illinois as of August 2025.
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 £317	Free Cancellation	Rating 7.0 520 reviews		Search Icelandair flights
British Airways	PriceFrom £418	Free Cancellation	Rating 6.6 7,222 reviews		Search British Airways 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.