Find flights
When to book
Airlines
FAQs

Cheap flights from London Gatwick Airport to Illinois from £301

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — ORD
28 Jun — 5 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap 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 29 May 2026.

Wed 9/914:00
LGW
-
ORD
1 stop15h 55m
Multiple Airlines
Wed 16/922:25
ORD
-
LGW
1 stop10h 15m
Multiple Airlines
Deal found 26/5£522
Wed 14/1016:25
LGW
-
ORD
1 stop26h 15m
TAP AIR PORTUGAL
Wed 21/1018:00
ORD
-
LGW
2 stops35h 20m
TAP AIR PORTUGAL
Deal found 25/5£523
Sat 10/1016:30
LGW
-
ORD
1 stop29h 30m
TAP AIR PORTUGAL
Sat 17/1018:05
ORD
-
LGW
2 stops20h 20m
TAP AIR PORTUGAL
Deal found 27/5£525
Tue 1/914:00
LGW
-
ORD
1 stop15h 14m
Multiple Airlines
Sat 31/1019:30
ORD
-
LGW
2 stops14h 50m
Multiple Airlines
Deal found 27/5£525
Thu 8/1014:50
LGW
-
ORD
1 stop31h 10m
TAP AIR PORTUGAL
Sun 11/1018:00
ORD
-
LGW
2 stops20h 25m
TAP AIR PORTUGAL
Deal found 25/5£526
Sat 5/914:00
LGW
-
ORD
1 stop15h 14m
Multiple Airlines
Thu 24/919:25
ORD
-
LGW
1 stop13h 15m
Multiple Airlines
Deal found 27/5£528
Wed 1/722:00
LGW
-
ORD
2 stops24h 57m
Multiple Airlines
Fri 10/717:35
ORD
-
LGW
2 stops21h 10m
Multiple Airlines
Deal found 27/5£531
Tue 7/721:35
LGW
-
ORD
2 stops28h 17m
Multiple Airlines
Tue 28/722:25
ORD
-
LGW
1 stop10h 15m
Multiple Airlines
Deal found 26/5£531
Mon 8/621:30
LGW
-
ORD
2 stops27h 55m
Multiple Airlines
Fri 16/1022:25
ORD
-
LGW
1 stop10h 15m
Multiple Airlines
Deal found 24/5£532
Tue 25/816:25
LGW
-
ORD
1 stop28h 20m
TAP AIR PORTUGAL
Sun 20/918:00
ORD
-
LGW
1 stop15h 10m
TAP AIR PORTUGAL
Deal found 26/5£534
Mon 22/611:35
LGW
-
MDW
2 stops28h 05m
Multiple Airlines
Mon 6/710:25
MDW
-
LGW
2 stops17h 25m
Multiple Airlines
Deal found 25/5£589
Tue 9/609:40
LGW
-
MDW
2 stops29h 55m
Multiple Airlines
Tue 16/610:15
MDW
-
LGW
2 stops15h 40m
Multiple Airlines
Deal found 24/5£605

Find flight deals from Gatwick to Illinois

Keep the following information in mind while searching for Gatwick to Illinois flight deals. Data was last updated 29 May 2026.

Round-trip from

£522

One-way from

£301

Popular in

July

Cheapest in

February

Average price

£584
Icelandair
  • Icelandair
  • 9/9-16/9
  • 2 total stops
  • 26h 10m total
  • London to Illinois
Search Deals
2/9
  • 2/9
  • 1 total stop
  • 16h 14m total
  • London to Illinois
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£53 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
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 29 May 2026.
Use the filters below to find and compare flights from London Gatwick Airport to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Mon 22/6

12:20-19:25

1 stop13h 05m

Chicago O'Hare Intl

Thu 2/7

10:56-09:35

1 stop16h 39m

£609

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 9/7

12:20-19:15

1 stop12h 55m

Chicago O'Hare Intl

Thu 16/7

10:56-09:35

1 stop16h 39m

£646

LondonChicago

LGW - MDW

LGWMDW

London Gatwick

Thu 2/7

11:35-14:35

2 stops33h 00m

Chicago Midway

Sun 5/7

10:25-09:50

2 stops17h 25m

£660

LondonChicago

LGW - MDW

LGWMDW

London Gatwick

Mon 29/6

12:40-09:40

1 stop27h 00m

Chicago Midway

Mon 13/7

10:25-12:40

2 stops20h 15m

£676

LondonChicago

LGW - MDW

LGWMDW

London Gatwick

Sun 7/6

09:40-14:35

2 stops34h 55m

Chicago Midway

Fri 12/6

10:15-07:55

2 stops15h 40m

£693

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Tue 18/8

21:15-16:00

2 stops24h 45m

Chicago O'Hare Intl

Thu 20/8

19:50-09:45

1 stop31h 55m

£714

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Thu 18/6

13:00-18:15

1 stop11h 15m

Chicago O'Hare Intl

Sun 28/6

22:25-11:45

1 stop31h 20m

£744

LondonChicago

LGW - ORD

LGWORD

London Gatwick

Wed 8/7

10:25-21:52

2 stops17h 27m

Chicago O'Hare Intl

Wed 22/7

07:05-09:25

2 stops20h 20m

£744

LondonChicago

LGW - MDW

LGWMDW

London Gatwick

Sat 13/6

11:35-14:35

2 stops33h 00m

Chicago Midway

Sat 20/6

10:25-09:50

2 stops17h 25m

£755

LondonChicago

LGW - MDW

LGWMDW

London Gatwick

Mon 15/6

11:35-12:46

3 stops31h 11m

Chicago Midway

Fri 19/6

10:25-07:55

2 stops15h 30m

£759

Flights are sorted by cheapest return flights first.

Deals found on 24/5

Showing 1-10 of 58 resultsSorted by cheapest first
1
2
3
...
6

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, December is the cheapest month in which you can book a flight from London Gatwick Airport to Illinois (average of £173). Flying from London Gatwick Airport to Illinois in July is currently the most expensive (average of £513). 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.

How much does it cost for a return flight from London Gatwick Airport to Illinois?

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 29 May 2026.
See what other customers who have flown with Icelandair 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
7.0
Good
661 reviews
Check prices

Boarding

7.2

Comfort

6.9

Entertainment

6.9

Crew

8.0

Overall

7.0

Food

6.1

Reviews

1 / 20
4.0
Okay

Daniel,May 2026

LHR - KEF

We had to change flights in Reykjavik and the outgoing flight was send to gate D23, where there were NO SEATS in the lounge. And in general, there were not enough seats for transferring passengers in general. After the three hour flight from London and then expecting a 7 hour flight to Seattle, having to stand & mill around for over an hour was rather unpleasant. We had booked Business Class and were assigned seats in the bulkhead seats, row 1. This made a MOST unpleasant 7 hour flight from Reykjavik to Seattle. The flight attendants had stored some of their carry-ons in the overhead bin just above us so it left us little room to place our carry-ons that was convenient. The seats in Business Class are too deep for shorter people and without ANY form of leg rest/support, we struggled to be comfortable for the entire flight.
Icelandair
7.0
Good
661 reviews
Icelandair
7.0
Good
661 reviews
Check prices

Boarding

7.2

Comfort

6.9

Entertainment

6.9

Crew

8.0

Overall

7.0

Food

6.1

Reviews

1 / 20
4.0
Okay

Daniel,May 2026

LHR - KEF

We had to change flights in Reykjavik and the outgoing flight was send to gate D23, where there were NO SEATS in the lounge. And in general, there were not enough seats for transferring passengers in general. After the three hour flight from London and then expecting a 7 hour flight to Seattle, having to stand & mill around for over an hour was rather unpleasant. We had booked Business Class and were assigned seats in the bulkhead seats, row 1. This made a MOST unpleasant 7 hour flight from Reykjavik to Seattle. The flight attendants had stored some of their carry-ons in the overhead bin just above us so it left us little room to place our carry-ons that was convenient. The seats in Business Class are too deep for shorter people and without ANY form of leg rest/support, we struggled to be comfortable for the entire flight.

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 15m. Fly via JetBlue, TAP AIR PORTUGAL, or Icelandair 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, December is the cheapest month in which you can book a flight from London Gatwick Airport to Illinois (average of £173). Flying from London Gatwick Airport to Illinois in July is currently the most expensive (average of £513). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Gatwick to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Gatwick to John F Kennedy Intl flights
Heathrow to LaGuardia flights
London City to John F Kennedy Intl flights
Stansted to John F Kennedy Intl flights
Gatwick to Newark flights
Gatwick to LaGuardia flights
Heathrow to Orlando flights
Heathrow to Los Angeles flights
Heathrow to Boston flights
Luton to John F Kennedy Intl flights
Heathrow to Dulles Intl flights
Heathrow to Miami flights
Stansted to Newark flights
Luton to Newark flights
Heathrow to San Francisco flights
Heathrow to O'Hare Intl flights
Heathrow to Baltimore flights
Heathrow to Dallas/Fort Worth flights
Gatwick to Boston flights
London City to Newark flights
Gatwick to Orlando flights
Heathrow to Las Vegas flights
Heathrow to Seattle flights
Heathrow to Hobby flights
Gatwick to Los Angeles flights
Stansted to Orlando flights
Stansted to Los Angeles flights
Gatwick to Miami flights
London City to Los Angeles flights
Heathrow to Atlanta flights
Stansted to LaGuardia flights
Heathrow to Austin flights
Stansted to Miami flights
London City to Boston flights
London City to Miami flights
Heathrow to Tampa flights
Stansted to Boston flights
Heathrow to George Bush Intcntl flights
Gatwick to San Francisco flights
Gatwick to Dulles Intl flights
Heathrow to Reagan-National flights
Stansted to Dulles Intl flights
Heathrow to Ontario flights
London City to Orlando flights
London City to Dulles Intl flights
London City to San Francisco flights
Gatwick to O'Hare Intl flights
Stansted to San Francisco flights

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 29 May 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£349Average£513FlexibilityNo 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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.