What are the cheapest airlines to fly from Illinois to London Gatwick Airport one-way?

One-way options have recently been found by users for as low as £213 on Icelandair. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £223 and Delta from £279 one-way.

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.

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 7% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £536 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £539.

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 £561. Cheapflights users have found deals in the month of February for as cheap as £354. 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.

£169+ Flights from Illinois to London Gatwick Airport - Compare & Save Big

Cheap flight deals from Illinois to Gatwick

Round-trip from	£459
One-way from	£169
Popular in	June
Cheapest in	February
Average price	£561

Icelandair
7/10-21/10
2 total stops
45h 50m total
Illinois to London

Search Deals

21/7
1 total stop
34h 20m total
Illinois to London

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£86 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).

Search Deals

Average for round-trip flights in May 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 1 May 2025.

Tue 7/1019:25ORD - LGW

1 stop13h 15mIcelandair

Tue 21/1015:40LGW - ORD

1 stop32h 35mIcelandair

Deal found 30/4£459

Wed 14/511:45ORD - LGW

1 stop14h 25mMultiple Airlines

Wed 21/515:05LGW - ORD

2 stops25h 36mMultiple Airlines

Deal found 30/4£460

Wed 7/513:55ORD - LGW

2 stops12h 15mAmerican Airlines

Wed 14/512:20LGW - ORD

2 stops17h 51mAmerican Airlines

Deal found 30/4£465

Sat 16/813:31ORD - LGW

1 stop14h 29mDelta

Wed 27/812:00LGW - ORD

1 stop15h 34mDelta

Deal found 30/4£467

Mon 18/811:19ORD - LGW

2 stops16h 41mVirgin Atlantic

Fri 29/812:00LGW - ORD

1 stop15h 34mVirgin Atlantic

Deal found 30/4£468

Mon 22/918:10ORD - LGW

1 stop15h 25mTAP AIR PORTUGAL

Tue 30/921:15LGW - ORD

2 stops24h 55mTAP AIR PORTUGAL

Deal found 30/4£468

Thu 16/1012:54ORD - LGW

1 stop13h 16mBritish Airways

Fri 24/1015:05LGW - ORD

1 stop25h 30mBritish Airways

Deal found 30/4£474

Mon 5/518:35ORD - LGW

1 stop17h 15mSWISS

Wed 21/518:35LGW - ORD

1 stop27h 20mSWISS

Deal found 30/4£475

Sat 7/609:40MDW - LGW

2 stops18h 10mPorter Airlines

Wed 11/611:35LGW - MDW

2 stops27h 10mPorter Airlines

Deal found 28/4£543

Tue 13/517:45STL - LGW

1 stop34h 15mMultiple Airlines

Tue 20/514:00LGW - STL

1 stop15h 44mMultiple Airlines

Deal found 29/4£564

Wed 27/811:51STL - LGW

2 stops16h 09mDelta

Mon 8/912:00LGW - STL

2 stops17h 39mDelta

Deal found 1/5£570

Mon 26/509:40MDW - LGW

2 stops18h 10mMultiple Airlines

Sun 8/611:35LGW - MDW

2 stops35h 19mMultiple Airlines

Deal found 29/4£575

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 1 May 2025.

Tue 7/1019:25ORD - LGW

1 stop13h 15mIcelandair

Tue 21/1015:40LGW - ORD

1 stop32h 35mIcelandair

Deal found 30/4£459

Wed 14/511:45ORD - LGW

1 stop14h 25mMultiple Airlines

Wed 21/515:05LGW - ORD

2 stops25h 36mMultiple Airlines

Deal found 30/4£460

Mon 22/913:20ORD - LGW

2 stops12h 50mAmerican Airlines

Tue 30/910:40LGW - ORD

2 stops19h 17mAmerican Airlines

Deal found 30/4£463

Sat 16/813:31ORD - LGW

1 stop14h 29mDelta

Wed 27/812:00LGW - ORD

1 stop15h 34mDelta

Deal found 30/4£467

Mon 18/811:19ORD - LGW

2 stops16h 41mVirgin Atlantic

Fri 29/812:00LGW - ORD

1 stop15h 34mVirgin Atlantic

Deal found 30/4£468

Mon 22/918:10ORD - LGW

1 stop15h 25mTAP AIR PORTUGAL

Tue 30/921:15LGW - ORD

2 stops24h 55mTAP AIR PORTUGAL

Deal found 30/4£468

Thu 16/1012:54ORD - LGW

1 stop13h 16mBritish Airways

Fri 24/1015:05LGW - ORD

1 stop25h 30mBritish Airways

Deal found 30/4£474

Sun 11/518:35ORD - LGW

1 stop17h 15mSWISS

Mon 19/518:35LGW - ORD

1 stop27h 20mSWISS

Deal found 30/4£480

Wed 10/915:52ORD - LGW

2 stops22h 08mIberia

Sun 14/910:40LGW - ORD

1 stop16h 45mIberia

Deal found 30/4£537

Sat 7/609:40MDW - LGW

2 stops18h 10mPorter Airlines

Wed 11/611:35LGW - MDW

2 stops27h 10mPorter Airlines

Deal found 28/4£543

Sat 18/1008:10STL - LGW

2 stops26h 05mTurkish Airlines

Wed 22/1017:15LGW - STL

2 stops27h 04mTurkish Airlines

Deal found 30/4£1,069

Tue 13/517:45STL - LGW

1 stop34h 15mMultiple Airlines

Tue 20/514:00LGW - STL

1 stop15h 44mMultiple Airlines

Deal found 29/4£564

Last-minute flights from Illinois to Gatwick
Discover last-minute flight deals from Illinois to Gatwick. Data last updated 1 May 2025 and is based on user searches.

Fri 2/522:15ORD - LGW

1 stop31h 30mIcelandair

Wed 7/515:40LGW - ORD

1 stop11h 35mIcelandair

Deal found 30/4£468

Mon 5/517:50MDW - LGW

2 stops34h 00mPorter Airlines

Fri 9/511:35LGW - MDW

2 stops27h 10mPorter Airlines

Deal found 30/4£757

Mon 5/518:35ORD - LGW

1 stop17h 15mSWISS

Wed 21/518:35LGW - ORD

1 stop27h 20mSWISS

Deal found 30/4£475

Tue 6/516:03ORD - LGW

2 stops17h 32mTAP AIR PORTUGAL

Wed 7/521:15LGW - ORD

2 stops48h 55mTAP AIR PORTUGAL

Deal found 29/4£839

Tue 6/515:43STL - LGW

2 stops36h 12mTurkish Airlines

Wed 14/505:30LGW - STL

2 stops39h 17mTurkish Airlines

Deal found 30/4£1,095

Tue 6/509:40MDW - LGW

1 stop19h 05mMultiple Airlines

Sat 17/515:40LGW - MDW

2 stops23h 05mMultiple Airlines

Deal found 29/4£3,010

Wed 7/522:15ORD - LGW

1 stop10h 25mMultiple Airlines

Mon 12/519:20LGW - ORD

2 stops42h 07mMultiple Airlines

Deal found 30/4£463

Wed 7/513:55ORD - LGW

2 stops12h 15mAmerican Airlines

Wed 14/512:20LGW - ORD

2 stops17h 51mAmerican Airlines

Deal found 30/4£465

Wed 7/518:35ORD - LGW

1 stop17h 20mSWISS

Wed 14/518:35LGW - ORD

1 stop27h 20mSWISS

Deal found 30/4£480

Wed 7/511:45ORD - LGW

1 stop14h 25mAmerican Airlines

Wed 14/512:20LGW - ORD

2 stops17h 51mAmerican Airlines

Deal found 30/4£465

Fri 9/511:45ORD - LGW

2 stops26h 15mIberia

Sun 18/520:40LGW - ORD

1 stop23h 35mIberia

Deal found 1/5£684

Sat 10/518:38ORD - LGW

1 stop29h 57mBritish Airways

Mon 19/515:05LGW - ORD

1 stop26h 04mBritish Airways

Deal found 30/4£481

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 1 May 2025.

Mon 21/717:40STL - LGW

1 stop34h 20mMultiple Airlines

Deal found 30/4£169

Sun 21/919:25ORD - LGW

1 stop13h 15mIcelandair

Deal found 30/4£213

Sun 12/1022:15ORD - LGW

2 stops13h 05mMultiple Airlines

Deal found 30/4£217

Thu 31/718:00ORD - LGW

1 stop33h 45mTAP AIR PORTUGAL

Deal found 30/4£223

Sun 29/621:12MDW - LGW

1 stop30h 48mMultiple Airlines

Deal found 30/4£245

Wed 3/913:05MDW - LGW

2 stops14h 55mDelta

Deal found 29/4£279

Wed 3/913:31ORD - LGW

1 stop14h 29mDelta

Deal found 29/4£279

Sat 10/516:44ORD - LGW

1 stop33h 06mBritish Airways

Deal found 30/4£290

Thu 29/517:20MDW - LGW

2 stops34h 30mPorter Airlines

Deal found 29/4£297

Tue 6/518:35ORD - LGW

1 stop17h 15mSWISS

Deal found 30/4£305

Sun 1/609:40MDW - LGW

1 stop19h 05mAir Transat

Deal found 29/4£329

Sat 23/811:19ORD - LGW

2 stops16h 41mVirgin Atlantic

Deal found 1/5£332

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

Tue 7/10

19:25-14:40

1 stop13h 15m

London Gatwick

Tue 21/10

15:40-18:15

1 stop32h 35m

£459

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 14/5

11:45-08:10

1 stop14h 25m

London Gatwick

Wed 21/5

15:05-10:41

2 stops25h 36m

£460

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Mon 22/9

13:20-08:10

2 stops12h 50m

London Gatwick

Tue 30/9

10:40-23:57

2 stops19h 17m

£463

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sat 16/8

13:31-10:00

1 stop14h 29m

London Gatwick

Wed 27/8

12:00-21:34

1 stop15h 34m

£467

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Mon 18/8

11:19-10:00

2 stops16h 41m

London Gatwick

Fri 29/8

12:00-21:34

1 stop15h 34m

£468

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Mon 22/9

18:10-15:35

1 stop15h 25m

London Gatwick

Tue 30/9

21:15-16:10

2 stops24h 55m

£468

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Thu 16/10

12:54-08:10

1 stop13h 16m

London Gatwick

Fri 24/10

15:05-10:35

1 stop25h 30m

£474

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Sun 11/5

18:35-17:50

1 stop17h 15m

London Gatwick

Mon 19/5

18:35-15:55

1 stop27h 20m

£480

ChicagoLondon

ORD - LGW

ORDLGW

Chicago O'Hare Intl

Wed 10/9

15:52-20:00

2 stops22h 08m

London Gatwick

Sun 14/9

10:40-21:25

1 stop16h 45m

£537

ChicagoLondon

MDW - LGW

MDWLGW

Chicago Midway

Sat 7/6

09:40-09:50

2 stops18h 10m

London Gatwick

Wed 11/6

11:35-08:45

2 stops27h 10m

£543

Flights are sorted by cheapest return flights first.

Deals found on 30/4

Showing 1-10 of 45 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, February 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.

Rainfall in Gatwick by month

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.

Temperature in Gatwick by month

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).

Reviews of airlines servicing Gatwick

To help decide which airline to fly from Illinois to London, see what other customers have to say about Delta, Porter Airlines and Air Transat. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very Good

7,934 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines

8.0

Very Good

285 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Transat

7.8

Good

385 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS

7.5

Good

1,588 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France

7.4

Good

1,446 reviews

Delta

8.0

Very Good

7,934 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines to fly from Illinois to London Gatwick Airport one-way?
One-way options have recently been found by users for as low as £213 on Icelandair. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £223 and Delta from £279 one-way.
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.
What is the cheapest month to book a flight from Illinois to London Gatwick Airport?
Currently, February 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.

See more FAQs

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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 £169

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 21/7. 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 1 May 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 1 May 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 1 May 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?

Rainfall in Gatwick by month

Plan your trip to Gatwick by taking into account the average rainfall totals by month.

Temperature in Gatwick by month

Plan your trip to Gatwick by taking into account the average temperature totals by month.

Reviews of airlines servicing Gatwick

Get insights into the airlines that provide service to Gatwick. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Gatwick. Reviews last updated 1 May 2025.

To help decide which airline to fly from Illinois to London, see what other customers have to say about Delta, Porter Airlines and Air Transat. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

What are the cheapest airlines to fly from Illinois to London Gatwick Airport one-way?

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 Illinois?

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Alternative routes for Illinois to Gatwick

See prices for flight routes from nearby airports that may be better suited for you.

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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 1 May 2025.