How long is the flight from Illinois to London Gatwick Airport?

Airlines like Icelandair and American Airlines fly from Illinois to London Gatwick Airport in about 10h 25m. The time it takes to get you to your destination can typically vary by up to 9h 40m. Illinois and London Gatwick Airport are separated by a distance of 3960 mi. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in London Gatwick Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Gatwick Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Gatwick Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Illinois to London Gatwick Airport?

The most popular route from Illinois to London Gatwick Airport is Chicago O'Hare Intl - London Gatwick. You may also consider Chicago Midway - London Gatwick or Lambert-St Louis - London Gatwick.

How far in advance should I book a flight from Illinois to London Gatwick Airport?

To save on the cost of your flight from Illinois to London Gatwick Airport, book at least 60 days before your planned departure. Booking around this time can save you about 11% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £485 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £522.

What is the cheapest month to fly from Illinois to London Gatwick Airport?

February can be a great time to fly to London Gatwick Airport from Illinois with a flight ticket averaging about £557. Cheapflights users have found deals in the month of February for as cheap as £347. The most expensive prices can be found in the month of June.

What is the cheapest time of day to fly from IL to LGW?

When flying from Illinois to London Gatwick Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Illinois to Gatwick that include hotel bookings?

Yes. In addition to deals on Illinois to Gatwick flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Illinois to Gatwick?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Gatwick.

Can I find deals for business class flights from Illinois to Gatwick?

Yes. Cheapflights offers flight deals from Illinois to Gatwick by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£171+ Cheap Flights from Illinois to London Gatwick Airport

Cheap flight deals from Illinois to Gatwick

Round-trip from	£372
One-way from	£171
Popular in	June
Cheapest in	February
Average price	£485

Icelandair
2/2-15/2
2 total stops
21h 50m total
Illinois to London

Search Deals

19/10
2 total stops
50h 26m total
Illinois to London

Search Deals

Highest demand for flights based on searches. 21% potential increase in price (£112 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£19 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Illinois to Gatwick

Cheapest flights from Illinois to Gatwick
Explore the most affordable flight options available from Illinois to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Wed 5/1118:30ORD - LGW

2 stops16h 50mMultiple Airlines

Tue 11/1108:50LGW - ORD

2 stops14h 30mMultiple Airlines

Deal found 14/9£372

Mon 6/1019:51ORD - LGW

1 stop32h 09mMultiple Airlines

Thu 9/1014:00LGW - ORD

1 stop34h 46mMultiple Airlines

Deal found 15/9£373

Fri 28/1118:30ORD - LGW

2 stops18h 15mMultiple Airlines

Thu 4/1220:50LGW - ORD

2 stops26h 30mMultiple Airlines

Deal found 15/9£375

Fri 3/1017:17ORD - LGW

1 stop34h 43mMultiple Airlines

Mon 6/1014:00LGW - ORD

1 stop33h 53mMultiple Airlines

Deal found 15/9£376

Tue 14/1019:05ORD - LGW

1 stop16h 45mSWISS

Tue 21/1018:35LGW - ORD

1 stop27h 20mSWISS

Deal found 15/9£377

Wed 29/1019:50ORD - LGW

1 stop17h 00mSWISS

Mon 3/1118:40LGW - ORD

1 stop27h 40mSWISS

Deal found 14/9£378

Wed 26/1118:50ORD - LGW

1 stop17h 00mSWISS

Wed 3/1218:40LGW - ORD

1 stop27h 40mSWISS

Deal found 14/9£379

Sun 2/1120:25ORD - LGW

2 stops18h 10mTAP AIR PORTUGAL

Sat 8/1116:35LGW - ORD

1 stop28h 10mTAP AIR PORTUGAL

Deal found 14/9£380

Tue 11/1118:30ORD - LGW

1 stop10h 25mIcelandair

Thu 20/1111:55LGW - ORD

1 stop11h 25mIcelandair

Deal found 14/9£381

Sun 2/1120:25ORD - LGW

2 stops18h 10mTAP AIR PORTUGAL

Tue 25/1116:35LGW - ORD

1 stop28h 25mTAP AIR PORTUGAL

Deal found 14/9£382

Sun 5/1019:25ORD - LGW

1 stop13h 15mIcelandair

Tue 14/1015:40LGW - ORD

1 stop32h 35mIcelandair

Deal found 15/9£383

Mon 6/1008:19MDW - LGW

1 stop19h 41mMultiple Airlines

Fri 31/1014:00LGW - MDW

1 stop25h 26mMultiple Airlines

Deal found 13/9£384

Best flights from Illinois to Gatwick
Discover carefully curated flight deals from Illinois to Gatwick that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 16 September 2025.

Mon 17/1118:30ORD - LGW

1 stop10h 25mIcelandair

Tue 25/1111:55LGW - ORD

1 stop11h 25mIcelandair

Deal found 15/9£381

Thu 2/1017:17ORD - LGW

1 stop34h 43mMultiple Airlines

Mon 6/1014:00LGW - ORD

1 stop33h 53mMultiple Airlines

Deal found 15/9£391

Wed 28/119:10ORD - LGW

1 stop13h 55mTAP AIR PORTUGAL

Fri 6/221:25LGW - ORD

2 stops47h 20mTAP AIR PORTUGAL

Deal found 16/9£420

Tue 28/1006:25STL - LGW

2 stops20h 05mAmerican Airlines

Tue 4/1111:20LGW - STL

2 stops31h 54mAmerican Airlines

Deal found 12/9£573

Sat 6/1218:30ORD - LGW

1 stop10h 25mIcelandair

Wed 10/1211:55LGW - ORD

1 stop11h 25mIcelandair

Deal found 14/9£381

Sun 28/906:30ORD - LGW

1 stop21h 40mMultiple Airlines

Tue 7/1014:00LGW - ORD

1 stop33h 53mMultiple Airlines

Deal found 15/9£411

Wed 19/1118:30ORD - LGW

1 stop10h 25mIcelandair

Wed 26/1111:55LGW - ORD

1 stop11h 25mIcelandair

Deal found 14/9£381

Tue 18/1118:30ORD - LGW

1 stop10h 25mIcelandair

Tue 25/1111:55LGW - ORD

1 stop11h 25mIcelandair

Deal found 15/9£381

Thu 13/1118:26MDW - LGW

1 stop29h 34mMultiple Airlines

Sun 16/1113:00LGW - MDW

1 stop16h 55mMultiple Airlines

Deal found 14/9£427

Fri 3/1008:15MDW - LGW

2 stops19h 45mMultiple Airlines

Wed 8/1014:00LGW - MDW

1 stop25h 47mMultiple Airlines

Deal found 15/9£435

Thu 23/1006:00ORD - LGW

1 stop22h 00mMultiple Airlines

Mon 27/1014:00LGW - ORD

1 stop31h 23mMultiple Airlines

Deal found 15/9£452

Wed 19/1105:00BMI - LGW

2 stops22h 00mAmerican Airlines

Wed 26/1111:20LGW - BMI

2 stops18h 39mAmerican Airlines

Deal found 14/9£668

Last-minute flights from Illinois to Gatwick
Discover last-minute flight deals from Illinois to Gatwick. Data last updated 16 September 2025 and is based on user searches.

Mon 29/906:30ORD - LGW

1 stop21h 30mMultiple Airlines

Thu 2/1014:00LGW - ORD

1 stop32h 12mMultiple Airlines

Deal found 15/9£389

Mon 29/917:15MDW - LGW

2 stops31h 05mMultiple Airlines

Tue 4/1113:00LGW - MDW

1 stop16h 55mMultiple Airlines

Deal found 14/9£406

Wed 1/1017:17ORD - LGW

1 stop34h 43mMultiple Airlines

Wed 8/1014:00LGW - ORD

1 stop33h 53mMultiple Airlines

Deal found 15/9£383

Fri 3/1017:17ORD - LGW

1 stop34h 43mMultiple Airlines

Mon 6/1014:00LGW - ORD

1 stop33h 53mMultiple Airlines

Deal found 15/9£376

Fri 3/1017:17ORD - LGW

1 stop34h 43mMultiple Airlines

Thu 9/1014:00LGW - ORD

1 stop34h 46mMultiple Airlines

Deal found 14/9£386

Sun 5/1019:25ORD - LGW

1 stop13h 15mIcelandair

Tue 14/1015:40LGW - ORD

1 stop32h 35mIcelandair

Deal found 15/9£383

Mon 6/1019:51ORD - LGW

1 stop32h 09mMultiple Airlines

Thu 9/1014:00LGW - ORD

1 stop34h 46mMultiple Airlines

Deal found 15/9£373

Tue 14/1019:05ORD - LGW

1 stop16h 45mSWISS

Tue 21/1018:35LGW - ORD

1 stop27h 20mSWISS

Deal found 15/9£377

Thu 16/1011:49MDW - LGW

1 stop16h 11mMultiple Airlines

Thu 30/1014:00LGW - MDW

1 stop23h 32mMultiple Airlines

Deal found 14/9£391

Tue 21/1019:25ORD - LGW

1 stop13h 15mIcelandair

Thu 30/1011:55LGW - ORD

1 stop11h 25mIcelandair

Deal found 14/9£381

Tue 28/1019:50ORD - LGW

1 stop17h 00mSWISS

Tue 4/1118:40LGW - ORD

1 stop27h 40mSWISS

Deal found 15/9£388

Wed 29/1019:50ORD - LGW

1 stop17h 00mSWISS

Mon 3/1118:40LGW - ORD

1 stop27h 40mSWISS

Deal found 14/9£378

One-way flights from Illinois to Gatwick
Search for one-way flight options from Illinois to Gatwick. Find affordable one-way fares based on user searches. Data last updated 16 September 2025.

Sun 19/1021:54ORD - LGW

2 stops50h 26mMultiple Airlines

Deal found 15/9£171

Thu 16/1011:49MDW - LGW

1 stop16h 11mMultiple Airlines

Deal found 14/9£172

Fri 17/1019:43ORD - LGW

2 stops28h 37mMultiple Airlines

Deal found 14/9£172

Sat 4/1019:55STL - LGW

2 stops32h 15mMultiple Airlines

Deal found 15/9£173

Sat 18/1018:15ORD - LGW

1 stop33h 30mTAP AIR PORTUGAL

Deal found 14/9£173

Thu 20/1106:20MDW - LGW

2 stops32h 20mMultiple Airlines

Deal found 14/9£174

Sat 27/917:40ORD - LGW

2 stops30h 40mMultiple Airlines

Deal found 15/9£174

Sun 2/1120:25ORD - LGW

1 stop31h 25mTAP AIR PORTUGAL

Deal found 14/9£174

Thu 2/1005:10ORD - LGW

2 stops19h 10mMultiple Airlines

Deal found 15/9£175

Thu 16/1018:00ORD - LGW

2 stops23h 20mMultiple Airlines

Deal found 14/9£176

Thu 30/1017:56MDW - LGW

2 stops34h 29mMultiple Airlines

Deal found 15/9£177

Fri 28/1120:15ORD - LGW

2 stops15h 55mMultiple Airlines

Deal found 13/9£179

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Mon 17/11

18:30-10:55

1 stop10h 25m

London Gatwick

Tue 25/11

11:55-17:20

1 stop11h 25m

£381

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sat 6/12

18:30-10:55

1 stop10h 25m

London Gatwick

Wed 10/12

11:55-17:20

1 stop11h 25m

£381

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 19/11

18:30-10:55

1 stop10h 25m

London Gatwick

Wed 26/11

11:55-17:20

1 stop11h 25m

£381

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Tue 18/11

18:30-10:55

1 stop10h 25m

London Gatwick

Tue 25/11

11:55-17:20

1 stop11h 25m

£381

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Thu 2/10

17:17-10:00

1 stop34h 43m

London Gatwick

Mon 6/10

14:00-17:53

1 stop33h 53m

£391

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sun 28/9

06:30-10:10

1 stop21h 40m

London Gatwick

Tue 7/10

14:00-17:53

1 stop33h 53m

£411

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 28/1

19:10-15:05

1 stop13h 55m

London Gatwick

Fri 6/2

21:25-14:45

2 stops47h 20m

£420

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Thu 13/11

18:26-06:00

1 stop29h 34m

London Gatwick

Sun 16/11

13:00-23:55

1 stop16h 55m

£427

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Fri 3/10

08:15-10:00

2 stops19h 45m

London Gatwick

Wed 8/10

14:00-09:47

1 stop25h 47m

£435

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Thu 23/10

06:00-10:00

1 stop22h 00m

London Gatwick

Mon 27/10

14:00-16:23

1 stop31h 23m

£452

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 58 results

...

Best time to book a flight from Illinois to Gatwick

Have a flexible travel schedule? Discover the best time to fly to Gatwick from Illinois with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to London Gatwick Airport

What is the cheapest month to book a flight from Illinois to London Gatwick Airport?

Currently, April is the cheapest month in which you can book a flight from Illinois to London Gatwick Airport (average of £102). Flying from Illinois to London Gatwick Airport in July is currently the most expensive (average of £142). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

How long is the flight from Illinois to London Gatwick Airport?
Airlines like Icelandair and American Airlines fly from Illinois to London Gatwick Airport in about 10h 25m. The time it takes to get you to your destination can typically vary by up to 9h 40m. Illinois and London Gatwick Airport are separated by a distance of 3960 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the most popular routes from Illinois to London Gatwick Airport?
The most popular route from Illinois to London Gatwick Airport is Chicago O'Hare Intl - London Gatwick. You may also consider Chicago Midway - London Gatwick or Lambert-St Louis - London Gatwick.
Can I find deals for flights from Illinois to Gatwick that include hotel bookings?
Yes. In addition to deals on Illinois to Gatwick flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Illinois to Gatwick?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Gatwick.
Can I find deals for business class flights from Illinois to Gatwick?
Yes. Cheapflights offers flight deals from Illinois to Gatwick by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Illinois to London Gatwick Airport?
Currently, April is the cheapest month in which you can book a flight from Illinois to London Gatwick Airport (average of £102). Flying from Illinois to London Gatwick Airport in July is currently the most expensive (average of £142). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Croydon

Hounslow

Gatwick

Slough

Luton

Deal

Wembley

Ilford

Crawley

Hayes

Watford

Folkestone

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Dartford

Eastbourne

Guildford

Bishop's Stortford

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How does Cheapflights help users find flights from Illinois to Gatwick?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Illinois to Gatwick. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Illinois to Gatwick?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Gatwick from Illinois.

Can Cheapflights find flights from Illinois to Gatwick with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Illinois to Gatwick flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Illinois to Gatwick become cheaper?

Yes, Cheapflights offers price alerts on Illinois to Gatwick flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Illinois to London Gatwick Airport from £171

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Illinois to Gatwick

Keep the following information in mind while searching for Illinois to Gatwick flight deals. Data was last updated 16 September 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Illinois to Gatwick

Cheapest flights from Illinois to GatwickExplore the most affordable flight options available from Illinois to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Explore the most affordable flight options available from Illinois to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Illinois to Gatwick

Have a flexible travel schedule? Discover the best time to fly to Gatwick from Illinois with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Illinois to London Gatwick Airport

What is the cheapest month to book a flight from Illinois to London Gatwick Airport?

Related info for your journey

Find useful and relevant information for your journey from Illinois to Gatwick. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Illinois to London Gatwick Airport?

What are the most popular routes from Illinois to London Gatwick Airport?

Can I find deals for flights from Illinois to Gatwick that include hotel bookings?

How can I find direct flights from Illinois to Gatwick?

Can I find deals for business class flights from Illinois to Gatwick?

What is the cheapest month to book a flight from Illinois to London Gatwick Airport?

Travelling to a place near London Gatwick Airport?

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Alternative routes for Illinois to Gatwick

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How does Cheapflights help users find flights from Illinois to Gatwick?

Why should you use Cheapflights to find cheap flight tickets from Illinois to Gatwick?

Can Cheapflights find flights from Illinois to Gatwick with no change fees?

Can Cheapflights notify me if prices for flights from Illinois to Gatwick become cheaper?

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Cheapest flights from Illinois to Gatwick
Explore the most affordable flight options available from Illinois to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.