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Cheap flights from London Gatwick Airport to Illinois from £244

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 16/1. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — ORD
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Gatwick to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Gatwick to Illinois
Explore the most affordable flight options available from Gatwick to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 November 2025.

Thu 20/1116:00LGW - ORD
1 stop29h 25mTAP AIR PORTUGAL
Sun 30/1120:25ORD - LGW
1 stop13h 20mTAP AIR PORTUGAL
Deal found 12/11£413
Wed 10/1211:55LGW - ORD
1 stop11h 25mIcelandair
Mon 15/1218:30ORD - LGW
1 stop10h 25mIcelandair
Deal found 12/11£419
Wed 3/1211:55LGW - ORD
1 stop11h 25mIcelandair
Wed 10/1218:30ORD - LGW
1 stop10h 25mIcelandair
Deal found 13/11£419
Wed 19/1111:55LGW - ORD
1 stop11h 25mIcelandair
Wed 26/1118:30ORD - LGW
1 stop10h 25mIcelandair
Deal found 12/11£424
Wed 3/1208:50LGW - ORD
1 stop15h 05mMultiple Airlines
Wed 10/1215:50ORD - LGW
1 stop10h 20mMultiple Airlines
Deal found 12/11£425
Thu 4/1208:50LGW - ORD
2 stops14h 30mMultiple Airlines
Wed 10/1218:30ORD - LGW
2 stops19h 25mMultiple Airlines
Deal found 13/11£429
Tue 18/1116:35LGW - ORD
1 stop28h 25mTAP AIR PORTUGAL
Sun 7/1220:25ORD - LGW
2 stops18h 10mTAP AIR PORTUGAL
Deal found 12/11£433
Thu 4/1216:00LGW - ORD
1 stop29h 25mTAP AIR PORTUGAL
Sun 7/1220:25ORD - LGW
2 stops18h 10mTAP AIR PORTUGAL
Deal found 12/11£435
Thu 4/1208:50LGW - ORD
2 stops14h 30mMultiple Airlines
Sun 7/1218:30ORD - LGW
2 stops15h 25mMultiple Airlines
Deal found 12/11£436
Wed 19/1111:55LGW - ORD
1 stop11h 25mIcelandair
Mon 24/1118:30ORD - LGW
1 stop10h 25mIcelandair
Deal found 12/11£446
Tue 18/1116:35LGW - ORD
1 stop28h 25mTAP AIR PORTUGAL
Sun 30/1120:25ORD - LGW
2 stops18h 10mTAP AIR PORTUGAL
Deal found 12/11£448
Fri 21/1114:00LGW - MDW
1 stop15h 29mMultiple Airlines
Tue 25/1106:20MDW - LGW
2 stops21h 30mMultiple Airlines
Deal found 10/11£504

Cheap flight deals from Gatwick to Illinois

Keep the following information in mind while searching for Gatwick to Illinois flight deals. Data was last updated 14 November 2025.

Round-trip from

£419

One-way from

£244

Popular in

July

Cheapest in

February

Average price

£470
Icelandair
  • Icelandair
  • 10/12-15/12
  • 2 total stops
  • 21h 50m total
  • London to Illinois
Search Deals
16/1
  • 16/1
  • 1 total stop
  • 14h 34m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£62 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Gatwick to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 November 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Illinois that are best for you.

Fly from

Gatwick

Fly to

Illinois

Route

Depart

Return

Price

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Sat 17/1

11:55-17:20

1 stop11h 25m

Chicago O'Hare Intl

Tue 27/1

18:30-10:55

1 stop10h 25m

£421

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 26/11

11:55-17:20

1 stop11h 25m

Chicago O'Hare Intl

Fri 5/12

18:30-10:55

1 stop10h 25m

£470

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Sat 6/12

11:55-17:20

1 stop11h 25m

Chicago O'Hare Intl

Mon 8/12

18:30-10:55

1 stop10h 25m

£470

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 3/12

11:55-17:20

1 stop11h 25m

Chicago O'Hare Intl

Wed 31/12

18:30-10:55

1 stop10h 25m

£477

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 8/1

14:00-20:05

1 stop36h 05m

Chicago O'Hare Intl

Wed 21/1

17:32-10:00

2 stops34h 28m

£532

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 15/1

18:40-12:45

1 stop24h 05m

Chicago O'Hare Intl

Mon 19/1

18:35-17:50

2 stops17h 15m

£533

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 15/1

18:40-12:45

1 stop24h 05m

Chicago O'Hare Intl

Mon 26/1

18:35-17:50

2 stops17h 15m

£534

LondonSt. Louis

LGW - STL

LGWSTL

London Gatwick

Thu 5/3

12:30-19:30

2 stops37h 00m

Lambert-St Louis

Mon 9/3

07:35-07:30

2 stops18h 55m

£547

LondonChicago

LGW - MDW

LGWMDW

London Gatwick

Mon 24/11

13:00-11:42

1 stop28h 42m

Chicago Midway

Sun 30/11

17:30-10:00

1 stop34h 30m

£551

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 7/1

19:30-17:20

3 stops27h 50m

Chicago O'Hare Intl

Mon 12/1

18:30-10:35

3 stops34h 05m

£570

Flights are sorted by cheapest return flights first.

Deals found on 13/11

Showing 1-10 of 56 results
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Best time to book a flight from Gatwick to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Gatwick 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 London Gatwick Airport to Illinois

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

Currently, March is the cheapest month in which you can book a flight from London Gatwick Airport to Illinois (average of £307). Flying from London Gatwick Airport to Illinois in July is currently the most expensive (average of £523). 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.

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

Find hourly flight availability from Gatwick to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 November 2025.

When flying from London Gatwick Airport to Illinois, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 42% versus a flight in the morning.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated 14 November 2025.
See what other customers who have flown with Icelandair and British Airways from London Gatwick Airport to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.1
Good
578 reviews
Check prices

Comfort

6.9

Crew

8.0

Food

6.2

Boarding

7.2

Entertainment

7.0

Overall

7.1

Reviews

1 / 20
8.0
Excellent

Dmitry,Oct 2025

KEF - EWR

It was a nice experience, the plane was clean and the crew was friendly. The boarding process went smoothly and there were no delays.
Icelandair
7.1
Good
578 reviews
Icelandair
7.1
Good
578 reviews
Check prices

Comfort

6.9

Crew

8.0

Food

6.2

Boarding

7.2

Entertainment

7.0

Overall

7.1

Reviews

1 / 20
8.0
Excellent

Dmitry,Oct 2025

KEF - EWR

It was a nice experience, the plane was clean and the crew was friendly. The boarding process went smoothly and there were no delays.
British Airways
6.7
Okay
7,517 reviews
Icelandair
7.1
Good
578 reviews
Check prices

Comfort

6.9

Crew

8.0

Food

6.2

Boarding

7.2

Entertainment

7.0

Overall

7.1

Reviews

1 / 20
8.0
Excellent

Dmitry,Oct 2025

KEF - EWR

It was a nice experience, the plane was clean and the crew was friendly. The boarding process went smoothly and there were no delays.

Related info for your journey

Find useful and relevant information for your journey from Gatwick to Illinois. 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 London Gatwick Airport to Illinois?

    There are many flights that can get you from London Gatwick Airport to Illinois in 11h 25m. Fly via Icelandair, American Airlines, or Iberia to get the fastest option. The distance between London Gatwick Airport and Illinois is about 3960 mi. This flight may include one or multiple stops.

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

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

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

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

  • How can I find direct flights from Gatwick to Illinois?

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

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

    Yes. Cheapflights offers flight deals from Gatwick to Illinois 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 London Gatwick Airport to Illinois?

    Currently, March is the cheapest month in which you can book a flight from London Gatwick Airport to Illinois (average of £307). Flying from London Gatwick Airport to Illinois in July is currently the most expensive (average of £523). 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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Alternative routes for Gatwick to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Gatwick to Illinois

Discover the top airline that operate flights from Gatwick to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£320Average£531FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

When you search for this flight from Gatwick to Illinois, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Gatwick to Illinois for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to Illinois from Gatwick shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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