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Cheap flights from London Gatwick Airport to Idaho from £394

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 15/4. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — BOI
13 Apr — 20 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap 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 14 March 2026.

Mon 8/610:00
LGW
-
BOI
2 stops42h 17m
Multiple Airlines
Mon 29/608:03
BOI
-
LGW
1 stop19h 52m
Multiple Airlines
Deal found 9/3£685
Sun 26/410:20
LGW
-
GEG
2 stops19h 11m
Multiple Airlines
Sun 3/509:55
GEG
-
LGW
2 stops24h 55m
Multiple Airlines
Deal found 12/3£707
Thu 23/415:40
LGW
-
BOI
2 stops39h 19m
Multiple Airlines
Thu 30/416:38
BOI
-
LGW
2 stops15h 02m
Multiple Airlines
Deal found 9/3£719
Sat 25/415:40
LGW
-
GEG
2 stops37h 51m
Icelandair
Sat 2/514:45
GEG
-
LGW
2 stops15h 55m
Icelandair
Deal found 11/3£733
Mon 20/415:40
LGW
-
BOI
2 stops38h 17m
Icelandair
Mon 27/416:38
BOI
-
LGW
2 stops15h 02m
Icelandair
Deal found 11/3£737
Sat 25/415:40
LGW
-
BOI
2 stops38h 22m
Multiple Airlines
Sat 2/516:38
BOI
-
LGW
2 stops15h 02m
Multiple Airlines
Deal found 11/3£744
Fri 24/415:40
LGW
-
GEG
2 stops16h 15m
Multiple Airlines
Fri 1/509:55
GEG
-
LGW
2 stops20h 45m
Multiple Airlines
Deal found 10/3£745
Thu 23/415:40
LGW
-
BOI
2 stops39h 19m
Icelandair
Thu 30/416:38
BOI
-
LGW
2 stops15h 02m
Icelandair
Deal found 9/3£753
Wed 30/910:20
LGW
-
BOI
2 stops16h 50m
Multiple Airlines
Wed 7/1015:10
BOI
-
LGW
2 stops16h 35m
Multiple Airlines
Deal found 9/3£761
Mon 27/410:20
LGW
-
GEG
2 stops19h 11m
Multiple Airlines
Mon 4/507:09
GEG
-
LGW
2 stops27h 41m
Multiple Airlines
Deal found 13/3£761
Thu 21/515:40
LGW
-
GEG
2 stops30h 36m
Icelandair
Tue 2/612:36
GEG
-
LGW
2 stops18h 04m
Icelandair
Deal found 11/3£763
Tue 1/913:00
LGW
-
BOI
2 stops16h 47m
Multiple Airlines
Tue 8/906:00
BOI
-
LGW
2 stops25h 40m
Multiple Airlines
Deal found 9/3£764

Find flight deals from Gatwick to Idaho

Keep the following information in mind while searching for Gatwick to Idaho flight deals. Data was last updated 14 March 2026.

Round-trip from

£685

One-way from

£394

Popular in

December

Cheapest in

January

Average price

£631
8/6-29/6
  • 8/6-29/6
  • 3 total stops
  • 62h 09m total
  • London to Idaho
Search Deals
15/4
  • 15/4
  • 2 total stops
  • 28h 49m total
  • London to Idaho
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£56 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£32 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
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 14 March 2026.
Use the filters below to find and compare flights from London Gatwick Airport to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Mon 8/6

10:00-21:17

2 stops42h 17m

Boise Air Term. Gowen Fld

Mon 29/6

08:03-10:55

1 stop19h 52m

£685

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Sat 25/4

15:40-23:02

2 stops38h 22m

Boise Air Term. Gowen Fld

Sat 2/5

16:38-14:40

2 stops15h 02m

£744

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Fri 24/4

15:40-23:55

2 stops16h 15m

Spokane

Fri 1/5

09:55-14:40

2 stops20h 45m

£745

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Mon 20/4

15:40-22:57

2 stops38h 17m

Boise Air Term. Gowen Fld

Mon 27/4

16:38-14:40

2 stops15h 02m

£762

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Tue 1/9

13:00-22:47

2 stops16h 47m

Boise Air Term. Gowen Fld

Tue 8/9

06:00-14:40

2 stops25h 40m

£764

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Thu 28/5

15:40-14:16

2 stops30h 36m

Spokane

Tue 9/6

15:10-11:45

2 stops36h 35m

£764

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Wed 1/7

15:40-09:43

2 stops25h 03m

Boise Air Term. Gowen Fld

Wed 8/7

16:15-14:40

2 stops15h 25m

£791

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Thu 28/5

15:40-14:16

2 stops30h 36m

Spokane

Mon 8/6

15:10-14:40

2 stops15h 30m

£800

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

Tue 9/6

10:20-19:58

2 stops17h 38m

Spokane

Tue 30/6

11:40-18:50

2 stops23h 10m

£816

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

Tue 23/6

15:40-23:51

2 stops39h 11m

Boise Air Term. Gowen Fld

Sat 4/7

16:15-14:40

2 stops15h 25m

£824

Flights are sorted by cheapest return flights first.

Deals found on 11/3

Showing 1-10 of 43 resultsSorted by cheapest first
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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 Delta can get you from London Gatwick Airport to Idaho in just under 18h 41m. Your travel time can differ by up to 19h 36m. 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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How does Cheapflights help users find flights from Gatwick to Idaho?

Deals for Gatwick to Idaho flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Gatwick to Idaho.

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

Need flexible booking options for your flight to Idaho from Gatwick? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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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