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Idaho

$443+ Cheap flights from the United Kingdom to Idaho

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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
avr. 27 — mai 41
dim. 4/27
dim. 5/4
1 adult, Economy
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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 avril 22, 2025.

Round-trip from

$717
(United Airlines)

One-way from

$443
(Norse)

Popular in

August

Cheapest in

November

Average price

$902
From United Kingdom to Idaho
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One-way flight from United Kingdom to Idaho
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Highest demand for flights based on searches. 17% potential increase in price ($200 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 avril 22, 2025.

This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/92:50 pmLHR - BOI
2 stops32h 09mUnited Airlines
lun. 6/3010:50 amBOI - LHR
1 stop13h 35mUnited Airlines
Deal found 4/22$717
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/1910:45 amLGW - GEG
1 stop19h 37mMultiple Airlines
lun. 5/267:10 amGEG - LGW
1 stop19h 45mMultiple Airlines
Deal found 4/21$749
This Trip.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/163:40 pmLGW - BOI
2 stops24h 48mMultiple Airlines
mar. 9/232:25 pmBOI - LGW
2 stops17h 15mMultiple Airlines
Deal found 4/21$785
This United Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 9/194:40 pmLHR - JAC
2 stops28h 23mUnited Airlines
sam. 9/271:40 pmJAC - LHR
1 stop14h 30mUnited Airlines
Deal found 4/21$832
This EaseMyTrip deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/2610:55 amLHR - GEG
1 stop13h 09mVirgin Atlantic
sam. 9/131:30 pmGEG - LHR
1 stop12h 20mVirgin Atlantic
Deal found 4/22$838
This oojo deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/213:40 pmLGW - GEG
2 stops16h 19mIcelandair
mar. 10/2811:35 amGEG - LGW
2 stops16h 20mIcelandair
Deal found 4/22$872
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/246:30 amLHR - GEG
2 stops18h 22mDelta
jeu. 7/33:25 pmGEG - LHR
1 stop14h 50mDelta
Deal found 4/22$873
This ChecknFly deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 6/286:00 pmLHR - BOI
2 stops24h 43mLufthansa
lun. 7/77:15 pmBOI - LHR
2 stops33h 30mLufthansa
Deal found 4/22$874
This oojo deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/219:25 pmLHR - GEG
2 stops31h 34mIcelandair
mar. 10/2811:35 amGEG - LHR
2 stops16h 15mIcelandair
Deal found 4/22$883
This United Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/218:45 amLHR - GEG
2 stops22h 30mUnited Airlines
mar. 10/287:00 amGEG - LHR
1 stop22h 00mUnited Airlines
Deal found 4/22$899
This Ticket deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/88:30 amLHR - BOI
2 stops22h 01mAir Canada
dim. 7/207:50 amBOI - LHR
2 stops17h 45mAir Canada
Deal found 4/22$919
This Air Canada deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/213:50 pmLHR - GEG
3 stops28h 46mMultiple Airlines
mar. 10/285:00 amGEG - LHR
2 stops19h 10mMultiple Airlines
Deal found 4/22$923

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated avril 22, 2025.
Use the filters below to find and compare flights from the United Kingdom to Idaho that are best for you.

Fly from

United Kingdom

Fly to

Idaho

Route

Depart

Return

Price

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

lun. 6/9

2:50 pm-3:59 pm

2 stops32h 09m

Boise Air Term. Gowen Fld

lun. 6/30

10:50 am-7:25 am

1 stop13h 35m

$717

LondonSpokane

LGW - GEG

LGWGEG

London Gatwick

lun. 5/19

10:45 am-10:22 pm

1 stop19h 37m

Spokane

lun. 5/26

7:10 am-10:55 am

1 stop19h 45m

$749

LondonBoise

LGW - BOI

LGWBOI

London Gatwick

mar. 9/16

3:40 pm-9:28 am

2 stops24h 48m

Boise Air Term. Gowen Fld

mar. 9/23

2:25 pm-2:40 pm

2 stops17h 15m

$785

LondonJackson

LHR - JAC

LHRJAC

London Heathrow

ven. 9/19

4:15 pm-2:03 pm

2 stops28h 48m

Jackson Hole

sam. 9/27

1:40 pm-11:45 am

2 stops15h 05m

$832

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

mar. 8/26

10:55 am-4:04 pm

1 stop13h 09m

Spokane

sam. 9/13

1:30 pm-9:50 am

1 stop12h 20m

$838

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

mar. 6/24

6:30 am-4:20 pm

2 stops17h 50m

Spokane

jeu. 7/3

9:40 am-1:10 pm

2 stops19h 30m

$873

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

sam. 6/28

6:00 pm-11:43 am

2 stops24h 43m

Boise Air Term. Gowen Fld

lun. 7/7

7:15 pm-11:45 am

2 stops33h 30m

$874

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

mar. 7/8

8:30 am-11:31 pm

2 stops22h 01m

Boise Air Term. Gowen Fld

dim. 7/20

7:50 am-8:35 am

2 stops17h 45m

$919

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

jeu. 6/5

8:40 am-11:14 pm

2 stops22h 34m

Spokane

jeu. 6/12

6:00 pm-8:40 pm

2 stops18h 40m

$930

LondonSpokane

LHR - GEG

LHRGEG

London Heathrow

sam. 6/7

1:35 pm-10:22 pm

1 stop16h 47m

Spokane

sam. 6/14

6:05 am-11:20 am

2 stops21h 15m

$948

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 56 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 round-trip 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 the United Kingdom to Idaho

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 $314). Flying from United Kingdom to Idaho in June is currently the most expensive (average of $419). 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.

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 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

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 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 avril 22, 2025.
Read reviews from past customers who have flown Delta, KLM and SWISS from United Kingdom to Idaho. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

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
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

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
7,920 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

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
SWISS
7.5
Good
1,582 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

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
1,441 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

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
United Airlines
7.4
Good
8,683 reviews
Delta
8.0
Very good
7,920 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

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 $675. However, be on the lookout for offers from Lufthansa and Scandinavian Airlines, 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 vacation 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 $314). Flying from United Kingdom to Idaho in June is currently the most expensive (average of $419). 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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