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$386+ Cheap flights from Idaho to the United Kingdom

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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LHR
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Idaho to United Kingdom

Discover tips and strategies to find the most affordable flight options for your journey from Idaho (USID) to United Kingdom (GB0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$678
(Ovago)

One-way from

$386
(Kiwi.com)
From Idaho to United Kingdom
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One-way flight from Idaho to United Kingdom
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Find flight deals from Idaho to United Kingdom

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

This Ovago deal was found by Cheapflights users on 1/21. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/47:15 amBOI - LHR
2 stops27h 25mScandinavian Airlines
Tue 3/115:00 pmLHR - BOI
2 stops35h 50mScandinavian Airlines
Deal found 1/21$678
This United deal was found by Cheapflights users on 1/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/32:36 pmBOI - LHR
1 stop12h 04mUnited Airlines
Tue 3/113:00 pmLHR - BOI
2 stops32h 50mUnited Airlines
Deal found 1/21$716
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Mon 3/35:00 amGEG - LHR
2 stops18h 10mUnited Airlines
Thu 3/273:00 pmLHR - GEG
2 stops36h 53mUnited Airlines
Deal found 1/21$716
This Justfly.com deal was found by Cheapflights users on 1/19. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/225:43 amGEG - LHR
2 stops40h 47mAir Canada
Fri 10/32:05 pmLHR - GEG
2 stops30h 35mAir Canada
Deal found 1/19$719
This KLM deal was found by Cheapflights users on 1/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/271:10 pmIDA - LHR
1 stop13h 50mKLM
Mon 2/35:50 pmLHR - IDA
2 stops31h 28mKLM
Deal found 1/20$727
This KLM deal was found by Cheapflights users on 1/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/251:10 pmGEG - LHR
1 stop13h 25mKLM
Wed 3/266:30 amLHR - GEG
2 stops19h 14mKLM
Deal found 1/20$727
This Finnair deal was found by Cheapflights users on 1/21. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/47:05 amBOI - LHR
1 stop17h 15mFinnair
Tue 3/1110:40 amLHR - BOI
1 stop17h 15mFinnair
Deal found 1/21$729
This Air Canada deal was found by Cheapflights users on 1/20. 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.
Tue 10/712:29 pmBOI - LHR
2 stops37h 06mAir Canada
Fri 10/1712:05 pmLHR - BOI
2 stops30h 50mAir Canada
Deal found 1/20$731
This Delta deal was found by Cheapflights users on 1/20. 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.
Tue 2/259:15 amGEG - LHR
2 stops17h 55mDelta
Wed 3/266:30 amLHR - GEG
2 stops21h 35mDelta
Deal found 1/20$731
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/49:15 amGEG - GLA
2 stops23h 20mDelta
Tue 3/186:05 amGLA - GEG
2 stops22h 12mDelta
Deal found 1/21$762
This Flighttix deal was found by Cheapflights users on 1/21. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/76:00 amGEG - LHR
2 stops20h 10mMultiple Airlines
Fri 3/1411:35 amLHR - GEG
1 stop16h 18mMultiple Airlines
Deal found 1/21$764
This Cheapflightsfares deal was found by Cheapflights users on 1/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/32:36 pmBOI - LCY
2 stops19h 04mLufthansa
Tue 3/1110:00 amLCY - BOI
2 stops17h 29mLufthansa
Deal found 1/21$766

Find flights from Idaho to United Kingdom within your budget

Customize your flight search to find flights from Idaho to United Kingdom 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 3/4

7:15 am-5:40 pm

2 stops27h 25m

London Heathrow

Tue 3/11

5:00 pm-10:50 pm

2 stops35h 50m

$678

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Mon 3/3

2:36 pm-9:40 am

1 stop12h 04m

London Heathrow

Tue 3/11

3:00 pm-5:50 pm

2 stops32h 50m

$716

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Mon 3/3

5:00 am-7:10 am

2 stops18h 10m

London Heathrow

Thu 3/27

3:00 pm-8:53 pm

2 stops36h 53m

$716

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Tue 2/25

1:10 pm-10:35 am

1 stop13h 25m

London Heathrow

Wed 3/26

6:30 am-6:44 pm

2 stops19h 14m

$727

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 3/4

7:05 am-7:20 am

1 stop17h 15m

London Heathrow

Tue 3/11

10:40 am-9:55 pm

1 stop17h 15m

$729

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Tue 2/25

9:15 am-11:10 am

2 stops17h 55m

London Heathrow

Wed 3/26

6:30 am-9:05 pm

2 stops21h 35m

$731

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Wed 3/12

7:00 am-4:00 pm

2 stops26h 00m

London Heathrow

Sun 3/16

7:30 pm-11:31 pm

2 stops35h 01m

$756

SpokaneGlasgow

GEG - GLA

GEGGLA

Spokane

Tue 3/4

9:15 am-4:35 pm

2 stops23h 20m

Glasgow Intl

Tue 3/18

6:05 am-9:17 pm

2 stops22h 12m

$762

BoiseLondon

BOI - LCY

BOILCY

Boise Air Term. Gowen Fld

Mon 3/3

2:36 pm-4:40 pm

2 stops19h 04m

London City

Tue 3/11

10:00 am-9:29 pm

2 stops17h 29m

$766

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Mon 2/3

8:25 am-7:10 am

2 stops15h 45m

London Heathrow

Sat 2/15

6:00 pm-10:45 pm

2 stops35h 45m

$773

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 59 results
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Best time to book a flight from Idaho to United Kingdom

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

Travel insights for flights from Idaho to United Kingdom

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

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

Currently, November is the cheapest month in which you can book a flight from Idaho to United Kingdom (average of $661). Flying from Idaho to United Kingdom in June is currently the most expensive (average of $1,137). 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 ID to GB?

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to United Kingdom as you normally would.

Rainfall in United Kingdom by month

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

In terms of precipitation, rainfall in United Kingdom ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit United Kingdom when rainfall is around 1.6 in.

Temperature in United Kingdom by month

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

If weather is an important factor for your trip to United Kingdom, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated January 21, 2025.
Peruse reviews from past customers who have flown with Iberia, United Airlines and KLM from Idaho to United Kingdom to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Alaska Airlines
8.0
Very good
9,706 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,286 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.5
Good
1,600 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

    To fly one-way, consider booking your trip with Scandinavian Airlines, which is currently one of the cheapest options available, starting at $437. United Airlines flights start at $473 while deals on Virgin Atlantic start at $473 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho to United Kingdom 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 Idaho to United Kingdom?

    Currently, November is the cheapest month in which you can book a flight from Idaho to United Kingdom (average of $661). Flying from Idaho to United Kingdom in June is currently the most expensive (average of $1,137). 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 Idaho to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Idaho to United Kingdom

Discover the top 6 airlines that operate flights from Idaho to United Kingdom. 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 2,558,603 searches. Data last updated January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$583Average$904FlexibilityNo cancel feeOn-time71%
Virgin AtlanticCheapest$654Average$957FlexibilityNo cancel feeOn-time72%
KLMCheapest$656Average$967FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$670Average$1,023FlexibilityNo cancel feeOn-time69%
DeltaCheapest$698Average$1,124FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$1,062Average$1,314FlexibilityNo cancel feeOn-time76%
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