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

Airlines like Delta, Virgin Atlantic, and Turkish Airlines fly from Illinois to London Gatwick Airport in about 15h 20m. The time it takes to get you to your destination can typically vary by up to 13h 30m. 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.

£243+ Cheap Flights from Illinois to London Gatwick Airport

Cheap flight deals from Illinois to Gatwick

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 3 October 2026.

Thu 22/1018:00 -

1 stop33h 45m

Thu 29/1016:00 -

1 stop29h 30m

Deal found 28/9£546

Sun 4/1018:00 -

1 stop33h 45m

Wed 14/1016:25 -

1 stop26h 15m

Deal found 29/9£547

Sun 18/1019:15 -

1 stop17h 10m

Mon 2/1107:00 -

1 stop15h 45m

Deal found 1/10£548

Wed 4/1119:00 -

2 stops22h 45m

Sat 14/1116:50 -

2 stops28h 40m

Deal found 30/9£548

Fri 6/1119:10 -

2 stops34h 25m

Wed 11/1107:00 -

1 stop15h 45m

Deal found 2/10£549

Sun 22/1119:10 -

1 stop12h 15m

Thu 26/1107:00 -

1 stop15h 45m

Deal found 28/9£550

Mon 2/1118:30 -

2 stops20h 15m

Tue 10/1108:50 -

2 stops14h 30m

Deal found 1/10£551

Wed 28/1020:10 -

2 stops18h 20m

Wed 4/1113:00 -

2 stops33h 45m

Deal found 30/9£551

Sat 7/1112:00 -

2 stops15h 25m

Tue 10/1107:00 -

1 stop15h 45m

Deal found 2/10£553

Sun 1/1119:10 -

1 stop12h 15m

Sat 7/1107:00 -

1 stop15h 45m

Deal found 2/10£554

Mon 9/1119:10 -

1 stop12h 15m

Thu 12/1120:10 -

2 stops26h 35m

Deal found 29/9£554

Find flight deals from Illinois to Gatwick

Round-trip from	£546
One-way from	£243
Popular in	June
Cheapest in	January
Average price	£613

TAP AIR PORTUGAL
22/10-29/10
2 total stops
63h 15m total
Illinois to London

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25/11-31/12
3 total stops
46h 40m total
Illinois to London

Search Deals

Highest demand for flights based on searches. 21% potential increase in price (£138 potential increase over avg. return price).

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Cheapest flight prices on average. 5% potential price decrease (£28 potential savings vs. average return price).

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Average for round-trip flights in October 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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Route

Depart

Return

Price

Cheapest return flight

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Mon 11/1

18:25-15:45

1 stop15h 20m

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

Thu 15/10

18:58-10:00

1 stop33h 02m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£369

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Wed 14/10

08:46-10:00

1 stop19h 14m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£373

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Sun 1/11

20:10-20:35

2 stops18h 25m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£386

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Wed 4/11

19:00-10:00

2 stops33h 00m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£389

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Tue 27/10

18:00-16:25

2 stops17h 25m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£433

Fastest return journey

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Sat 26/12

18:30-10:55

1 stop10h 25m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£460

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Sat 21/11

18:25-15:45

1 stop15h 20m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£511

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Mon 2/11

14:30-20:35

2 stops24h 05m

London Gatwick

Wed 31/12

00:00-17:00

Nonstop0h 00m

£511

ChicagoLondon

ORD Chicago O'Hare Intl - LGW London Gatwick

ORDLGW

Chicago O'Hare Intl

Mon 22/2

18:25-15:45

1 stop15h 20m

London Gatwick

Thu 25/2

10:00-16:15

1 stop12h 15m

£657

Flights are sorted by cheapest return flights first.

Deals found on 2/10

Showing 1-10 of 21 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 Delta, Virgin Atlantic, and Turkish Airlines fly from Illinois to London Gatwick Airport in about 15h 20m. The time it takes to get you to your destination can typically vary by up to 13h 30m. 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 £243

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/11. 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 3 October 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 3 October 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 3 October 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 3 October 2026.

Last-minute flights from Illinois to GatwickDiscover last-minute flight deals from Illinois to Gatwick. Data last updated 3 October 2026 and is based on user searches.

Discover last-minute flight deals from Illinois to Gatwick. Data last updated 3 October 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 3 October 2026.

Search for one-way flight options from Illinois to Gatwick. Find affordable one-way fares based on user searches. Data last updated 3 October 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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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 3 October 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 3 October 2026.

Last-minute flights from Illinois to Gatwick
Discover last-minute flight deals from Illinois to Gatwick. Data last updated 3 October 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 3 October 2026.