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

Airlines like TAP AIR PORTUGAL and Virgin Atlantic fly from Illinois to London Gatwick Airport in about 13h 35m. The time it takes to get you to your destination can typically vary by up to 5h 29m. 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 Lambert-St Louis - London Gatwick or Chicago Midway - London Gatwick.

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.

£239+ Cheap Flights from Illinois to London Gatwick Airport

Cheap flight deals from Illinois to Gatwick

Enter your travel dates to find the best prices.

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Best

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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 10 November 2026.

Sun 6/1218:30 -

1 stop14h 40m

Tue 15/1208:00 -

1 stop15h 20m

Deal found 9/11£490

Sun 6/1218:30 -

1 stop14h 40m

Thu 10/1210:10 -

1 stop13h 10m

Deal found 5/11£496

Mon 7/1218:30 -

2 stops15h 50m

Fri 11/1215:15 -

3 stops32h 05m

Deal found 5/11£501

Mon 16/1118:30 -

2 stops15h 50m

Tue 24/1119:30 -

3 stops27h 50m

Deal found 8/11£503

Sun 13/1218:30 -

1 stop14h 40m

Thu 17/1210:10 -

1 stop13h 10m

Deal found 6/11£503

Tue 8/1218:30 -

2 stops15h 50m

Tue 15/1219:30 -

3 stops27h 50m

Deal found 8/11£506

Wed 9/1218:30 -

1 stop16h 55m

Mon 14/1207:40 -

1 stop15h 40m

Deal found 5/11£512

Find flight deals from Illinois to Gatwick

Round-trip from	£485
One-way from	£239
Popular in	June
Cheapest in	February
Average price	£592

7/2-10/2
4 total stops
48h 05m total
Illinois to London

Search Deals

10/1-31/12
2 total stops
18h 20m total
Illinois to London

Search Deals

Highest demand for flights based on searches. 20% potential increase in price (£127 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£25 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2026

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Cheapflights Fare Finder

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

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Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Wed 21/4

17:10-16:00

1 stop16h 50m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£249

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Tue 4/5

14:20-08:25

1 stop12h 05m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£251

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Fri 15/1

20:10-15:45

1 stop13h 35m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£260

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Sat 3/4

17:45-12:00

2 stops36h 15m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£268

Fastest return journey

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Thu 31/12

18:30-10:55

1 stop10h 25m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£276

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Fri 22/1

20:10-15:45

1 stop13h 35m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£285

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Sun 2/5

17:45-11:20

2 stops35h 35m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£321

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Wed 5/5

21:30-17:50

2 stops14h 20m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£365

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Mon 11/1

14:55-15:45

2 stops18h 50m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£381

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Fri 25/12

05:01-05:50

1 stop18h 49m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£392

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 23 resultsSorted by cheapest first

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.

ORD-LGW

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

USIL-LGW

ORD-LGW

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Illinois to London Gatwick Airport?
Airlines like TAP AIR PORTUGAL and Virgin Atlantic fly from Illinois to London Gatwick Airport in about 13h 35m. The time it takes to get you to your destination can typically vary by up to 5h 29m. 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 Lambert-St Louis - London Gatwick or Chicago Midway - 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.

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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.

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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.

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

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Cheap flights from Illinois to London Gatwick Airport from £239

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 10 November 2026.

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 10 November 2026.

Best flights from Illinois to GatwickDiscover 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 10 November 2026.

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 10 November 2026.

Last-minute flights from Illinois to GatwickDiscover last-minute flight deals from Illinois to Gatwick. Data last updated 10 November 2026 and is based on user searches.

Discover last-minute flight deals from Illinois to Gatwick. Data last updated 10 November 2026 and is based on user searches.

One-way flights from Illinois to GatwickSearch for one-way flight options from Illinois to Gatwick. Find affordable one-way fares based on user searches. Data last updated 10 November 2026.

Search for one-way flight options from Illinois to Gatwick. Find affordable one-way fares based on user searches. Data last updated 10 November 2026.

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Related info for your journey

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?

Travelling to a place near London Gatwick Airport?

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Alternative routes for Illinois to Gatwick

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Other flights to Gatwick

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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 10 November 2026.

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 10 November 2026.

Last-minute flights from Illinois to Gatwick
Discover last-minute flight deals from Illinois to Gatwick. Data last updated 10 November 2026 and is based on user searches.

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 10 November 2026.