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Cheap flights from London Gatwick Airport to Idaho from £368

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 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — BOI
21 Dec — 28 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Gatwick to Idaho

Enter your travel dates to find the best prices.

Cheapest flights from Gatwick to Idaho
Explore the most affordable flight options available from Gatwick to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2025.

Thu 11/1211:55LGW - BOI
2 stops18h 15mMultiple Airlines
Fri 9/109:02BOI - LGW
2 stops18h 53mMultiple Airlines
Deal found 21/11£738
Fri 5/1211:20LGW - GEG
2 stops33h 10mAmerican Airlines
Mon 8/1205:17GEG - LGW
2 stops19h 43mAmerican Airlines
Deal found 20/11£777
Mon 8/1211:55LGW - BOI
2 stops16h 50mMultiple Airlines
Tue 16/1211:45BOI - LGW
2 stops16h 10mMultiple Airlines
Deal found 21/11£1,112
Mon 8/1211:55LGW - BOI
2 stops16h 50mMultiple Airlines
Mon 15/1211:45BOI - LGW
2 stops16h 10mMultiple Airlines
Deal found 21/11£1,148
Sun 30/1111:55LGW - GEG
2 stops19h 06mIcelandair
Mon 8/1211:45GEG - LGW
2 stops15h 10mIcelandair
Deal found 20/11£1,333
Tue 16/1211:55LGW - BOI
2 stops16h 50mMultiple Airlines
Thu 1/110:47BOI - LGW
2 stops17h 08mMultiple Airlines
Deal found 19/11£1,620
Thu 18/1211:55LGW - BOI
2 stops16h 15mMultiple Airlines
Thu 25/1211:58BOI - LGW
2 stops15h 57mMultiple Airlines
Deal found 19/11£1,630
Tue 16/1211:55LGW - BOI
2 stops16h 50mIcelandair
Thu 1/111:58BOI - LGW
2 stops15h 57mIcelandair
Deal found 20/11£1,750
Sun 30/1111:55LGW - GEG
2 stops19h 06mMultiple Airlines
Mon 8/1219:25GEG - LGW
2 stops31h 30mMultiple Airlines
Deal found 20/11£2,459

Cheap flight deals from Gatwick to Idaho

Keep the following information in mind while searching for Gatwick to Idaho flight deals. Data was last updated 21 November 2025.

Round-trip from

£586

One-way from

£368

Popular in

December

Cheapest in

September

Average price

£650
Icelandair
  • Icelandair
  • 10/3-17/3
  • 4 total stops
  • 32h 37m total
  • London to Idaho
Search Deals
21/4
  • 21/4
  • 2 total stops
  • 30h 44m total
  • London to Idaho
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£47 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£22 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 Idaho 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 21 November 2025.
Use the filters below to find and compare flights from London Gatwick Airport to Idaho that are best for you.

Fly from

Gatwick

Fly to

Idaho

Route

Depart

Return

Price

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Tue 10/3

11:55-21:37

2 stops16h 42m

Spokane

Tue 17/3

12:00-10:55

2 stops15h 55m

£586

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Tue 3/2

11:55-21:05

2 stops16h 10m

Boise Air Term. Gowen Fld

Sat 7/2

11:35-10:55

2 stops16h 20m

£617

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Tue 17/3

11:55-22:40

2 stops16h 45m

Boise Air Term. Gowen Fld

Tue 24/3

06:00-10:55

2 stops22h 55m

£638

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Mon 20/4

15:40-22:21

2 stops37h 41m

Boise Air Term. Gowen Fld

Mon 27/4

17:30-14:40

2 stops38h 10m

£650

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Mon 4/5

15:40-00:13

2 stops16h 33m

Spokane

Sun 10/5

11:35-14:40

2 stops19h 05m

£676

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Mon 9/2

11:55-21:05

2 stops16h 10m

Boise Air Term. Gowen Fld

Mon 16/2

11:54-10:55

2 stops16h 01m

£728

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Thu 11/12

11:55-23:10

2 stops18h 15m

Boise Air Term. Gowen Fld

Fri 9/1

09:02-10:55

2 stops18h 53m

£738

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Fri 5/12

11:20-12:30

2 stops33h 10m

Spokane

Mon 8/12

05:17-09:00

2 stops19h 43m

£777

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Sat 7/3

11:55-21:15

2 stops16h 20m

Boise Air Term. Gowen Fld

Fri 13/3

13:17-10:55

2 stops15h 38m

£946

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Sat 7/3

11:55-21:15

2 stops16h 20m

Boise Air Term. Gowen Fld

Sat 14/3

11:54-10:55

2 stops17h 01m

£951

Flights are sorted by cheapest return flights first.

Deals found on 20/11

Showing 1-10 of 20 results
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2

Best time to book a flight from Gatwick to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho 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 Idaho
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Gatwick to Idaho. 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 Idaho?

    Icelandair and American Airlines can get you from London Gatwick Airport to Idaho in just under 16h 42m. Your travel time can differ by up to 16h 28m. The distance from London Gatwick Airport to Idaho is about 4667 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    While some choose either London Gatwick - Spokane or London Gatwick - Idaho Falls Fanning Field, London Gatwick - Boise Air Term. Gowen Fld is the most popular route from London Gatwick Airport to Idaho.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Gatwick to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Gatwick to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Can Cheapflights notify me if prices for flights from Gatwick to Idaho become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Idaho from Gatwick today and book when prices fit your budget.

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