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$415+ Cheap flights from Idaho to London (LON)

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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LON
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from Idaho to London

Discover tips and strategies to find the most affordable flight options for your journey from Idaho (USID) to London (LON). 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 November 21, 2024.

Find flight deals from Idaho to London

Cheapest flights from Idaho to London
Explore the most affordable flight options available from Idaho to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This Scandinavian Airlines deal was found by Cheapflights users on 11/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/412:20 pmBOI - LHR
3 stops26h 15mMultiple Airlines
Wed 12/116:40 amLHR - BOI
2 stops23h 38mMultiple Airlines
Deal found 11/20$905
This Kiwi.com deal was found by Cheapflights users on 11/21. 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.
Tue 12/311:51 amBOI - LGW
1 stop15h 44mMultiple Airlines
Wed 12/1111:40 amLGW - BOI
2 stops30h 18mMultiple Airlines
Deal found 11/21$957
This United deal was found by Cheapflights users on 11/20. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/42:35 pmBOI - LHR
1 stop12h 05mUnited Airlines
Wed 12/113:00 pmLHR - BOI
2 stops35h 50mUnited Airlines
Deal found 11/20$978
This Gotogate deal was found by Cheapflights users on 11/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/245:20 pmBOI - LHR
2 stops30h 10mAir Canada
Wed 1/86:00 pmLHR - BOI
2 stops35h 50mAir Canada
Deal found 11/21$985
This KLM deal was found by Cheapflights users on 11/20. 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.
Wed 12/411:50 amBOI - LHR
1 stop17h 50mKLM
Wed 12/1110:45 amLHR - BOI
1 stop15h 02mKLM
Deal found 11/20$1,001
This Virgin Atlantic deal was found by Cheapflights users on 11/21. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2412:53 pmBOI - LHR
1 stop15h 17mVirgin Atlantic
Wed 1/810:45 amLHR - BOI
1 stop20h 33mVirgin Atlantic
Deal found 11/21$1,014
This United deal was found by Cheapflights users on 11/21. 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.
Sun 12/83:55 pmGEG - LHR
1 stop36h 05mUnited Airlines
Mon 12/166:00 pmLHR - GEG
2 stops50h 47mUnited Airlines
Deal found 11/21$1,048
This Delta deal was found by Cheapflights users on 11/21. 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.
Sun 12/86:15 amGEG - LHR
1 stop20h 55mDelta
Mon 12/239:10 amLHR - GEG
1 stop22h 01mDelta
Deal found 11/21$1,051
This United Airlines deal was found by Cheapflights users on 11/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1110:55 amIDA - LHR
1 stop15h 45mUnited Airlines
Tue 12/177:30 amLHR - IDA
2 stops33h 23mUnited Airlines
Deal found 11/20$1,052
This KLM deal was found by Cheapflights users on 11/20. 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.
Fri 12/61:09 pmIDA - LHR
1 stop13h 51mMultiple Airlines
Sun 12/86:20 amLHR - IDA
2 stops18h 55mMultiple Airlines
Deal found 11/20$1,070
This American Airlines deal was found by Cheapflights users on 11/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2311:59 pmGEG - LHR
1 stop22h 21mAmerican Airlines
Sun 12/292:30 pmLHR - GEG
1 stop16h 42mAmerican Airlines
Deal found 11/21$1,096
This Delta deal was found by Cheapflights users on 11/20. 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 12/311:50 amBOI - LHR
1 stop16h 20mDelta
Sun 12/86:30 amLHR - BOI
2 stops19h 47mDelta
Deal found 11/20$1,099

Find flights from Idaho to London within your budget

Customize your flight search to find flights from Idaho to London 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 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Mon 3/3

7:15 am-4:00 pm

2 stops25h 45m

London Heathrow

Tue 3/11

5:00 pm-10:05 pm

2 stops35h 05m

$671

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Sun 3/23

9:00 am-4:00 pm

2 stops25h 00m

London Heathrow

Mon 5/5

6:40 am-11:22 pm

2 stops23h 42m

$721

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Mon 3/3

7:47 am-12:00 pm

1 stop21h 13m

London Heathrow

Tue 3/11

3:00 pm-5:50 pm

2 stops32h 50m

$782

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Tue 2/25

6:00 am-7:25 am

1 stop17h 25m

London Heathrow

Fri 3/14

3:00 pm-9:07 pm

2 stops37h 07m

$782

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 1/28

7:00 am-6:30 am

2 stops16h 30m

London Heathrow

Fri 2/7

1:00 pm-7:27 pm

2 stops37h 27m

$788

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 1/28

7:00 am-6:20 am

1 stop16h 20m

London Heathrow

Fri 2/7

10:40 am-9:52 pm

1 stop18h 12m

$795

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 3/25

1:43 pm-11:40 am

1 stop15h 57m

London Heathrow

Wed 5/7

11:30 am-12:03 am

2 stops19h 33m

$797

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Thu 2/27

7:00 am-4:00 pm

2 stops25h 00m

London Heathrow

Mon 3/31

10:20 am-11:02 pm

2 stops20h 42m

$799

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 3/11

1:43 pm-10:35 am

1 stop14h 52m

London Heathrow

Tue 3/18

9:10 am-11:43 pm

1 stop20h 33m

$804

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Tue 2/25

6:00 am-7:05 am

1 stop17h 05m

London Heathrow

Fri 3/14

9:10 am-10:51 pm

1 stop20h 41m

$805

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 44 results
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Best time to book a flight from Idaho to London

Have a flexible travel schedule? Discover the best time to fly to London 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 London

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

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

Currently, November is the cheapest month in which you can book a flight from Idaho to London (average of $648). Flying from Idaho to London in June is currently the most expensive (average of $1,089). 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 LON?

Find hourly flight availability from Idaho to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

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

Rainfall in London by month

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

In terms of precipitation, rainfall in London 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 London when rainfall is around 1.6 in.

Temperature in London by month

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

If weather is an important factor for your trip to London, 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 London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated November 21, 2024.
Peruse reviews from past customers who have flown with KLM, Delta and Air Canada from Idaho to London to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,755 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

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
8,755 reviews
Delta
8.0
Very good
8,755 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

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
9,464 reviews
Delta
8.0
Very good
8,755 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 10

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

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very good
8,755 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 10

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

Finnair
7.7
Good
1,300 reviews
Delta
8.0
Very good
8,755 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 10

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

Virgin Atlantic
7.5
Good
663 reviews
Delta
8.0
Very good
8,755 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

8.0

Crew

8.5

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 London. 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 London one-way?

    The cheapest airlines for a one-way flight from Idaho to London are Scandinavian Airlines ($430), Air Canada ($504), and Iberia ($593).

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

    The most popular flight routes from Idaho to London are Boise Air Term. Gowen Fld - London Heathrow, Spokane - London Heathrow and Boise Air Term. Gowen Fld - London Gatwick.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho to London 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 London?

    Currently, November is the cheapest month in which you can book a flight from Idaho to London (average of $648). Flying from Idaho to London in June is currently the most expensive (average of $1,089). 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 London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Idaho to London

Discover the top 5 airlines that operate flights from Idaho to London. 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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$555Average$1,208FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$653Average$869FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$668Average$953FlexibilityNo cancel feeOn-time69%
Virgin AtlanticCheapest$670Average$960FlexibilityNo cancel feeOn-time72%
DeltaCheapest$698Average$1,038FlexibilityNo cancel feeOn-timeN/A
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