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Cheap flights from the United Kingdom to Idaho from £308

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 30/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
26 helmi — 5 maalis1
1 adult

Cheap flight deals from United Kingdom to Idaho

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

Round-trip from

£556

One-way from

£308

Popular in

August

Cheapest in

November

Average price

£636
United Airlines
  • United Airlines
  • 5/5-15/5
  • 4 total stops
  • 75h 01m total
  • United Kingdom to Idaho
Search Deals
30/4
  • 30/4
  • 1 total stop
  • 19h 44m total
  • United Kingdom to Idaho
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£117 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from United Kingdom to Idaho

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

pe 28/209:25LHR - BOI
1 stop19h 25mIberia
su 9/318:58BOI - LHR
1 stop15h 02mIberia
Deal found 21/2£545
ma 5/507:25LHR - GEG
2 stops24h 13mUnited Airlines
to 15/506:00GEG - LHR
1 stop17h 25mUnited Airlines
Deal found 20/2£556
ma 5/512:20LHR - GEG
1 stop19h 18mMultiple Airlines
to 15/515:25GEG - LHR
1 stop14h 45mMultiple Airlines
Deal found 20/2£572
ma 17/306:30LHR - GEG
2 stops19h 14mDelta
ti 25/306:00GEG - LHR
2 stops18h 55mDelta
Deal found 21/2£582
to 24/409:30LHR - BOI
2 stops19h 13mUnited Airlines
su 27/419:00BOI - LHR
1 stop29h 25mUnited Airlines
Deal found 20/2£596
ma 5/508:45LCY - GEG
2 stops22h 53mLufthansa
to 15/506:00GEG - LCY
2 stops26h 25mLufthansa
Deal found 20/2£597
to 24/411:25LHR - BOI
1 stop13h 27mMultiple Airlines
su 27/412:06BOI - LHR
1 stop35h 14mMultiple Airlines
Deal found 20/2£601
su 7/919:30LHR - GEG
2 stops32h 59mLufthansa
su 28/907:00GEG - LHR
1 stop16h 25mLufthansa
Deal found 20/2£602
su 7/913:00LGW - GEG
2 stops18h 59mMultiple Airlines
su 28/913:40GEG - LGW
2 stops17h 00mMultiple Airlines
Deal found 20/2£618
su 7/909:20LHR - GEG
1 stop20h 36mKLM
su 28/915:05GEG - LHR
1 stop15h 10mKLM
Deal found 19/2£621
pe 28/206:30LHR - BOI
2 stops19h 20mKLM
su 9/310:50BOI - LHR
1 stop19h 50mKLM
Deal found 20/2£624
su 16/315:50LHR - GEG
1 stop13h 59mVirgin Atlantic
ke 26/307:00GEG - LHR
1 stop26h 40mVirgin Atlantic
Deal found 21/2£625

Find flights from United Kingdom to Idaho within your budget

Customise your flight search to find flights from United Kingdom 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 helmikuu 2025.

Fly from

United Kingdom

Fly to

Idaho

Route

Depart

Return

Price

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

ma 5/5

07:25-14:41

2 stops39h 16m

Spokane

to 15/5

15:25-11:10

2 stops35h 45m

£556

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

ma 5/5

12:20-23:38

1 stop19h 18m

Spokane

to 15/5

15:25-14:10

1 stop14h 45m

£572

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

ma 17/3

06:30-18:44

2 stops19h 14m

Spokane

ti 25/3

06:00-07:55

2 stops18h 55m

£582

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

to 24/4

09:30-21:43

2 stops19h 13m

Boise Air Term. Gowen Fld

su 27/4

19:00-07:25

1 stop29h 25m

£596

LondonSpokane

LCY - GEG

LCYGEG

London City

ma 5/5

08:45-23:38

2 stops22h 53m

Spokane

to 15/5

06:00-16:25

2 stops26h 25m

£597

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

to 24/4

11:25-17:52

1 stop13h 27m

Boise Air Term. Gowen Fld

su 27/4

12:06-06:20

1 stop35h 14m

£601

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

su 16/3

15:50-22:49

1 stop13h 59m

Spokane

ke 26/3

07:00-16:40

1 stop26h 40m

£625

LondonBoise

LCY - BOI

LCYBOI

London City

to 24/4

08:45-17:52

2 stops40h 07m

Boise Air Term. Gowen Fld

su 27/4

14:38-18:35

2 stops44h 57m

£658

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

to 24/4

10:00-13:39

2 stops34h 39m

Boise Air Term. Gowen Fld

su 27/4

14:41-14:40

2 stops16h 59m

£664

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

ma 5/5

15:40-23:59

2 stops16h 19m

Spokane

to 15/5

13:40-14:40

2 stops17h 00m

£679

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 50 results
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Best time to book a flight from United Kingdom to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from United Kingdom 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.

Travel insights for flights from United Kingdom to Idaho

Get recent, data-driven insights about flights from United Kingdom to Idaho including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from United Kingdom to Idaho?

Currently, October is the cheapest month in which you can book a flight from United Kingdom to Idaho (average of £754). Flying from United Kingdom to Idaho in August is currently the most expensive (average of £1,152). 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 GB to ID?

Find hourly flight availability from United Kingdom to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 helmikuu 2025.

When flying from United Kingdom to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Idaho by month

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

In terms of precipitation, rainfall in Idaho ranges from 5.0 - 41.0 inches per month. December is typically the wettest month, when rainfall can reach 41.0 mm. August is typically the driest time to visit Idaho when rainfall is around 5.0 mm.

Temperature in Idaho by month

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

If weather is an important factor for your trip to Idaho, 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 24.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around -1.0 C).

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated 21 helmikuu 2025.
See what other customers who have flown with Delta, KLM and Finnair from United Kingdom to Idaho have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very Good
8,213 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,331 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,273 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic
7.5
Good
654 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,449 reviews
Delta
8.0
Very Good
8,213 reviews
Check prices

Crew

8.5

Comfort

8.0

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Idaho. 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 United Kingdom to Idaho one-way?

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as £467. However, be on the lookout for offers from Lufthansa and Icelandair, as they are both options that can get you from United Kingdom to Idaho for a low price.

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

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

  • How can I find direct flights from United Kingdom to Idaho?

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

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

    Yes. Cheapflights offers flight deals from United Kingdom 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.

  • What is the cheapest month to book a flight from United Kingdom to Idaho?

    Currently, October is the cheapest month in which you can book a flight from United Kingdom to Idaho (average of £754). Flying from United Kingdom to Idaho in August is currently the most expensive (average of £1,152). 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 United Kingdom to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from United Kingdom to Idaho

Discover the top 8 airlines that operate flights from United Kingdom to Idaho. 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 21 helmikuu 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£521Average£816FlexibilityNo cancel feeOn-time76%
Search Finnair flights
United AirlinesCheapest£563Average£816FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£564Average£938FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£569Average£701FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£613Average£864FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IberiaCheapest£631Average£752FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£649Average£850FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£662Average£846FlexibilityNo 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 United Kingdom to Idaho?

Deals for United Kingdom 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 United Kingdom to Idaho?

Cheapflights helps you find that perfect flight to Idaho from United Kingdom by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Need flexible booking options for your flight to Idaho from United Kingdom? 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 United Kingdom to Idaho become cheaper?

Yes! Start tracking prices for United Kingdom to Idaho flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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