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

Airlines like SWISS fly from Illinois to London Gatwick Airport in about 17h 40m. The time it takes to get you to your destination can typically vary by up to . Illinois and London Gatwick Airport are separated by a distance of 3960 mi.

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.

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.

£126+ Flights from Illinois to London Gatwick Airport

Cheap flight deals from Illinois to Gatwick

Enter your travel dates to find the best prices.

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 7 December 2025.

Sun 7/1220:25ORD - LGW

1 stop13h 20mTAP AIR PORTUGAL

Tue 16/1210:40LGW - ORD

1 stop34h 20mTAP AIR PORTUGAL

Deal found 6/12£452

Wed 10/1218:30ORD - LGW

1 stop10h 25mIcelandair

Tue 31/315:40LGW - ORD

1 stop32h 35mIcelandair

Deal found 6/12£453

Wed 10/1218:30ORD - LGW

1 stop10h 25mIcelandair

Wed 1/415:40LGW - ORD

1 stop32h 35mIcelandair

Deal found 6/12£465

Mon 15/1206:15MDW - LGW

2 stops21h 45mMultiple Airlines

Thu 15/114:00LGW - MDW

1 stop25h 09mMultiple Airlines

Deal found 6/12£499

Mon 15/1218:30ORD - LGW

1 stop10h 25mIcelandair

Mon 12/111:55LGW - ORD

1 stop11h 25mIcelandair

Deal found 6/12£503

Tue 9/1217:40ORD - LGW

1 stop19h 20mIberia

Mon 15/1219:40LGW - ORD

1 stop25h 15mIberia

Deal found 7/12£510

Sun 7/1220:25ORD - LGW

1 stop13h 20mTAP AIR PORTUGAL

Sat 13/1216:35LGW - ORD

1 stop28h 10mTAP AIR PORTUGAL

Deal found 7/12£526

Mon 8/1211:50STL - LGW

2 stops17h 00mIberia

Mon 15/1219:40LGW - STL

2 stops30h 44mIberia

Deal found 7/12£647

Sun 7/1214:54STL - LGW

2 stops37h 56mIberia

Sat 13/1219:40LGW - STL

2 stops33h 58mIberia

Deal found 5/12£688

Sun 21/1214:16MDW - LGW

1 stop13h 44mMultiple Airlines

Sun 18/113:00LGW - MDW

1 stop17h 02mMultiple Airlines

Deal found 7/12£802

Sun 7/1216:05STL - LGW

3 stops33h 15mMultiple Airlines

Sat 13/1220:15LGW - STL

2 stops23h 40mMultiple Airlines

Deal found 5/12£864

Thu 25/1215:45MDW - LGW

2 stops13h 10mMultiple Airlines

Fri 16/111:55LGW - MDW

2 stops15h 30mMultiple Airlines

Deal found 6/12£894

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 7 December 2025.

Mon 19/110:07MDW - LGW

1 stop17h 53mMultiple Airlines

Sat 24/114:00LGW - MDW

2 stops27h 45mMultiple Airlines

Deal found 7/12£441

Wed 7/118:10ORD - LGW

2 stops17h 40mSWISS

Thu 22/118:40LGW - ORD

1 stop27h 40mSWISS

Deal found 6/12£484

Sun 25/120:25ORD - LGW

2 stops18h 10mTAP AIR PORTUGAL

Thu 29/116:00LGW - ORD

1 stop29h 25mTAP AIR PORTUGAL

Deal found 6/12£514

Sun 15/311:59STL - LGW

2 stops26h 01mIberia

Wed 18/319:40LGW - STL

2 stops32h 18mIberia

Deal found 7/12£798

Fri 16/110:48ORD - LGW

1 stop17h 12mMultiple Airlines

Mon 19/114:00LGW - ORD

1 stop29h 13mMultiple Airlines

Deal found 7/12£451

Wed 14/118:10ORD - LGW

2 stops17h 40mSWISS

Wed 21/118:40LGW - ORD

1 stop24h 05mSWISS

Deal found 6/12£484

Tue 10/218:35ORD - LGW

2 stops17h 15mSWISS

Tue 17/218:40LGW - ORD

2 stops23h 30mSWISS

Deal found 5/12£495

Wed 22/418:00ORD - LGW

1 stop14h 00mTAP AIR PORTUGAL

Wed 29/421:15LGW - ORD

2 stops48h 45mTAP AIR PORTUGAL

Deal found 7/12£552

Fri 6/213:00MDW - LGW

1 stop15h 00mMultiple Airlines

Fri 13/314:00LGW - MDW

1 stop28h 47mMultiple Airlines

Deal found 7/12£505

Mon 9/218:35ORD - LGW

2 stops17h 15mSWISS

Tue 17/218:40LGW - ORD

2 stops23h 30mSWISS

Deal found 5/12£495

Tue 10/217:40ORD - LGW

2 stops17h 30mMultiple Airlines

Thu 26/217:10LGW - ORD

2 stops27h 45mMultiple Airlines

Deal found 6/12£508

Thu 8/118:10ORD - LGW

2 stops17h 40mSWISS

Thu 22/118:40LGW - ORD

1 stop27h 40mSWISS

Deal found 6/12£522

Tue 31/310:42STL - LGW

2 stops17h 18mMultiple Airlines

Tue 7/414:00LGW - STL

1 stop14h 33mMultiple Airlines

Deal found 5/12£530

Thu 8/118:10ORD - LGW

2 stops17h 40mSWISS

Wed 21/118:40LGW - ORD

1 stop24h 05mSWISS

Deal found 6/12£522

Fri 30/113:00MDW - LGW

1 stop15h 00mMultiple Airlines

Tue 3/213:00LGW - MDW

2 stops29h 05mMultiple Airlines

Deal found 7/12£555

Thu 12/310:03STL - LGW

2 stops19h 47mIberia

Mon 16/319:40LGW - STL

2 stops23h 22mIberia

Deal found 6/12£824

Fri 16/116:10ORD - LGW

2 stops16h 15mSWISS

Mon 19/118:40LGW - ORD

1 stop24h 05mSWISS

Deal found 7/12£532

Mon 12/108:50STL - LGW

1 stop19h 10mMultiple Airlines

Wed 28/113:00LGW - STL

2 stops40h 33mMultiple Airlines

Deal found 7/12£565

Thu 15/118:10ORD - LGW

2 stops17h 40mSWISS

Tue 20/118:40LGW - ORD

2 stops23h 30mSWISS

Deal found 5/12£536

Fri 6/213:00MDW - LGW

1 stop15h 00mMultiple Airlines

Sun 15/211:40LGW - MDW

1 stop28h 30mMultiple Airlines

Deal found 7/12£579

Wed 25/315:10MDW - LGW

1 stop13h 50mMultiple Airlines

Sun 29/321:15LGW - MDW

2 stops45h 46mMultiple Airlines

Deal found 5/12£581

Thu 19/315:10MDW - LGW

1 stop13h 50mMultiple Airlines

Sun 29/321:15LGW - MDW

2 stops45h 46mMultiple Airlines

Deal found 7/12£640

Mon 9/306:00STL - LGW

1 stop23h 00mMultiple Airlines

Fri 13/314:00LGW - STL

1 stop22h 13mMultiple Airlines

Deal found 6/12£655

Wed 1/415:30STL - LGW

2 stops32h 50mMultiple Airlines

Tue 7/414:00LGW - STL

1 stop14h 33mMultiple Airlines

Deal found 5/12£657

Sat 21/315:10MDW - LGW

1 stop13h 55mMultiple Airlines

Sun 29/321:15LGW - MDW

2 stops45h 46mMultiple Airlines

Deal found 6/12£685

Thu 5/217:42STL - LGW

1 stop34h 18mMultiple Airlines

Fri 13/214:00LGW - STL

1 stop14h 33mMultiple Airlines

Deal found 6/12£728

Sat 28/306:00STL - LGW

1 stop23h 00mMultiple Airlines

Tue 31/314:00LGW - STL

1 stop14h 33mMultiple Airlines

Deal found 7/12£787

Wed 11/315:50MDW - LGW

2 stops14h 05mMultiple Airlines

Mon 16/311:55LGW - MDW

2 stops16h 40mMultiple Airlines

Deal found 7/12£833

Wed 25/306:00STL - LGW

1 stop23h 00mMultiple Airlines

Fri 27/313:00LGW - STL

2 stops49h 47mMultiple Airlines

Deal found 5/12£835

Wed 4/316:05MDW - LGW

2 stops12h 50mMultiple Airlines

Sun 8/311:55LGW - MDW

2 stops16h 45mMultiple Airlines

Deal found 6/12£841

Last-minute flights from Illinois to Gatwick
Discover last-minute flight deals from Illinois to Gatwick. Data last updated 7 December 2025 and is based on user searches.

Tue 6/118:30ORD - LGW

1 stop10h 25mIcelandair

Tue 13/111:55LGW - ORD

1 stop11h 25mIcelandair

Deal found 4/12£426

Sun 11/120:25ORD - LGW

1 stop13h 20mTAP AIR PORTUGAL

Tue 20/116:35LGW - ORD

1 stop28h 25mTAP AIR PORTUGAL

Deal found 5/12£431

Tue 13/109:23ORD - LGW

2 stops40h 22mMultiple Airlines

Fri 30/114:00LGW - ORD

1 stop33h 52mMultiple Airlines

Deal found 5/12£424

Wed 14/118:30ORD - LGW

1 stop10h 25mIcelandair

Sun 25/111:55LGW - ORD

1 stop11h 25mIcelandair

Deal found 7/12£430

Thu 15/120:51ORD - LGW

1 stop31h 09mMultiple Airlines

Mon 19/114:00LGW - ORD

1 stop29h 13mMultiple Airlines

Deal found 5/12£438

Mon 19/121:00ORD - LGW

1 stop16h 25mMultiple Airlines

Wed 28/108:50LGW - ORD

1 stop16h 25mMultiple Airlines

Deal found 5/12£433

Mon 19/112:44ORD - LGW

1 stop15h 16mMultiple Airlines

Sat 24/114:00LGW - ORD

2 stops29h 37mMultiple Airlines

Deal found 5/12£436

Tue 20/118:30ORD - LGW

1 stop10h 25mIcelandair

Sun 25/111:55LGW - ORD

1 stop11h 25mIcelandair

Deal found 5/12£425

Tue 20/121:00ORD - LGW

1 stop11h 00mMultiple Airlines

Tue 27/111:25LGW - ORD

1 stop13h 50mMultiple Airlines

Deal found 5/12£434

Wed 21/117:32ORD - LGW

2 stops34h 28mMultiple Airlines

Fri 30/114:00LGW - ORD

1 stop33h 52mMultiple Airlines

Deal found 5/12£421

Thu 22/116:19ORD - LGW

2 stops35h 41mMultiple Airlines

Thu 29/114:00LGW - ORD

1 stop26h 35mMultiple Airlines

Deal found 6/12£420

Fri 23/120:15ORD - LGW

1 stop13h 30mTAP AIR PORTUGAL

Tue 27/121:20LGW - ORD

2 stops23h 40mTAP AIR PORTUGAL

Deal found 6/12£436

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 7 December 2025.

Mon 26/110:16STL - LGW

1 stop17h 44mMultiple Airlines

Deal found 6/12£126

Wed 21/117:42STL - LGW

1 stop34h 18mMultiple Airlines

Deal found 7/12£182

Sun 26/418:35STL - LGW

2 stops21h 50mMultiple Airlines

Deal found 7/12£252

Mon 4/513:30STL - LGW

2 stops20h 35mMultiple Airlines

Deal found 7/12£259

Mon 23/309:50STL - LGW

3 stops43h 10mMultiple Airlines

Deal found 6/12£274

Mon 15/1208:36ORD - LGW

1 stop15h 24mMultiple Airlines

Deal found 5/12£279

Tue 27/118:30ORD - LGW

1 stop10h 25mIcelandair

Deal found 7/12£280

Sun 25/120:25ORD - LGW

2 stops18h 10mTAP AIR PORTUGAL

Deal found 5/12£281

Sun 5/418:00ORD - LGW

2 stops20h 25mTAP AIR PORTUGAL

Deal found 5/12£282

Wed 8/418:00ORD - LGW

1 stop14h 00mTAP AIR PORTUGAL

Deal found 5/12£283

Wed 20/517:20MDW - LGW

2 stops33h 45mMultiple Airlines

Deal found 5/12£284

Tue 20/110:00ORD - LGW

2 stops17h 50mMultiple Airlines

Deal found 5/12£284

Find flight deals from Illinois to Gatwick

Round-trip from	£417
One-way from	£126
Popular in	June
Cheapest in	September
Average price	£625

23/2-10/3
3 total stops
59h 52m total
Illinois to London

Search Deals

26/1
1 total stop
17h 44m total
Illinois to London

Search Deals

Highest demand for flights based on searches. 21% potential increase in price (£115 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£20 potential savings vs. average return price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

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

MDW - LGW

MDWLGW

Chicago Midway

Mon 19/1

10:07-10:00

1 stop17h 53m

London Gatwick

Sat 24/1

14:00-11:45

2 stops27h 45m

£441

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Fri 16/1

10:48-10:00

1 stop17h 12m

London Gatwick

Mon 19/1

14:00-13:13

1 stop29h 13m

£451

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 7/1

18:10-17:50

2 stops17h 40m

London Gatwick

Thu 22/1

18:40-16:20

1 stop27h 40m

£484

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 14/1

18:10-17:50

2 stops17h 40m

London Gatwick

Wed 21/1

18:40-12:45

1 stop24h 05m

£484

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Tue 10/2

18:35-17:50

2 stops17h 15m

London Gatwick

Tue 17/2

18:40-12:10

2 stops23h 30m

£495

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Mon 9/2

18:35-17:50

2 stops17h 15m

London Gatwick

Tue 17/2

18:40-12:10

2 stops23h 30m

£495

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Fri 6/2

13:00-10:00

1 stop15h 00m

London Gatwick

Fri 13/3

14:00-13:47

1 stop28h 47m

£505

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Tue 10/2

17:40-17:10

2 stops17h 30m

London Gatwick

Thu 26/2

17:10-14:55

2 stops27h 45m

£508

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sun 25/1

20:25-20:35

2 stops18h 10m

London Gatwick

Thu 29/1

16:00-15:25

1 stop29h 25m

£514

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Thu 8/1

18:10-17:50

2 stops17h 40m

London Gatwick

Thu 22/1

18:40-16:20

1 stop27h 40m

£522

Flights are sorted by cheapest return flights first.

Deals found on 6/12

Showing 1-10 of 55 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, June is the cheapest month in which you can book a flight from Illinois to London Gatwick Airport (average of £281). Flying from Illinois to London Gatwick Airport in July is currently the most expensive (average of £529). 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 SWISS fly from Illinois to London Gatwick Airport in about 17h 40m. The time it takes to get you to your destination can typically vary by up to . Illinois and London Gatwick Airport are separated by a distance of 3960 mi.
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, June is the cheapest month in which you can book a flight from Illinois to London Gatwick Airport (average of £281). Flying from Illinois to London Gatwick Airport in July is currently the most expensive (average of £529). 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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Slough

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Ilford

Wembley

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Romford

Bedford

Chichester

Guildford

Ipswich

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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.

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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.

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 £126

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 26/1. 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 7 December 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 7 December 2025.

Find flight deals from Illinois to Gatwick

Keep the following information in mind while searching for Illinois to Gatwick flight deals. Data was last updated 7 December 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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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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 7 December 2025.