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$522+ 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LON
Nov 18 — Nov 251
Mon 11/18
Mon 11/25
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 13, 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 13, 2024.

This Norse deal was found by Cheapflights users on 11/12. 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 Norse 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
Sun 12/812:00 pmLGW - BOI
1 stop29h 58mMultiple Airlines
Deal found 11/12$704
This Scandinavian Airlines deal was found by Cheapflights users on 11/13. 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 12/47:11 amBOI - LHR
2 stops28h 19mMultiple Airlines
Wed 12/116:40 amLHR - BOI
2 stops22h 24mMultiple Airlines
Deal found 11/13$750
This Delta deal was found by Cheapflights users on 11/13. 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 12/291:12 pmGEG - LHR
1 stop13h 58mDelta
Tue 1/148:40 amLHR - GEG
2 stops22h 11mDelta
Deal found 11/13$772
This Kiwi.com deal was found by Cheapflights users on 11/13. 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.
Sun 12/299:31 amGEG - LGW
1 stop17h 04mMultiple Airlines
Tue 1/1412:00 pmLGW - GEG
2 stops32h 43mMultiple Airlines
Deal found 11/13$781
This Virgin Atlantic deal was found by Cheapflights users on 11/13. 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.
Sun 12/291:12 pmGEG - LHR
1 stop13h 58mVirgin Atlantic
Tue 1/141:15 pmLHR - GEG
1 stop15h 52mVirgin Atlantic
Deal found 11/13$785
This Scandinavian Airlines deal was found by Cheapflights users on 11/13. 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.
Sun 12/812:44 pmGEG - LHR
2 stops19h 16mMultiple Airlines
Mon 12/166:40 amLHR - GEG
2 stops24h 04mMultiple Airlines
Deal found 11/13$790
This KLM deal was found by Cheapflights users on 11/13. 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 12/111:43 pmBOI - LHR
1 stop13h 52mKLM
Wed 12/1810:45 amLHR - BOI
1 stop14h 49mKLM
Deal found 11/13$794
This United Airlines deal was found by Cheapflights users on 11/13. 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 12/118:00 amBOI - LHR
2 stops15h 55mUnited Airlines
Wed 12/1810:05 amLHR - BOI
2 stops18h 55mUnited Airlines
Deal found 11/13$798
This Virgin Atlantic deal was found by Cheapflights users on 11/11. 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.
Wed 12/111:15 pmBOI - LHR
2 stops14h 55mVirgin Atlantic
Wed 12/189:10 amLHR - BOI
2 stops16h 24mVirgin Atlantic
Deal found 11/11$799
This United Airlines deal was found by Cheapflights users on 11/12. 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.
Thu 12/125:15 amGEG - LHR
2 stops18h 40mUnited Airlines
Thu 12/1910:05 amLHR - GEG
1 stop16h 20mUnited Airlines
Deal found 11/12$849
This Scandinavian Airlines deal was found by Cheapflights users on 11/13. 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 12/47:00 amBOI - LHR
3 stops28h 50mScandinavian Airlines
Wed 12/116:40 amLHR - BOI
2 stops22h 24mScandinavian Airlines
Deal found 11/13$908
This The Travel House deal was found by Cheapflights users on 11/13. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/136:00 amIDA - LHR
1 stop21h 00mAir France
Fri 12/209:10 amLHR - IDA
2 stops40h 05mAir France
Deal found 11/13$938

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 2,744,491 searches. Data last updated November 13, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Mon 1/13

7:20 am-5:40 pm

2 stops27h 20m

London Heathrow

Mon 1/27

6:40 am-10:52 pm

2 stops23h 12m

$692

BoiseLondon

BOI - LGW

BOILGW

Boise Air Term. Gowen Fld

Tue 12/3

11:51 am-10:35 am

1 stop15h 44m

London Gatwick

Sun 12/8

12:00 pm-10:58 am

1 stop29h 58m

$704

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Sun 1/19

7:15 am-6:30 pm

2 stops28h 15m

London Heathrow

Sun 2/2

5:00 pm-10:52 pm

2 stops36h 52m

$762

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Wed 4/23

4:00 pm-9:40 pm

2 stops21h 40m

London Heathrow

Thu 5/1

10:20 am-10:33 pm

2 stops20h 13m

$767

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Sun 12/29

1:12 pm-11:10 am

1 stop13h 58m

London Heathrow

Tue 1/14

8:40 am-10:51 pm

2 stops22h 11m

$772

SpokaneLondon

GEG - LGW

GEGLGW

Spokane

Sun 12/29

9:31 am-10:35 am

1 stop17h 04m

London Gatwick

Tue 1/14

12:00 pm-12:43 pm

2 stops32h 43m

$781

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Sun 12/29

1:12 pm-11:10 am

1 stop13h 58m

London Heathrow

Tue 1/14

1:15 pm-9:07 pm

1 stop15h 52m

$785

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Mon 3/3

6:58 pm-8:35 pm

2 stops18h 37m

London Heathrow

Tue 3/11

3:00 pm-6:02 pm

2 stops33h 02m

$786

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

Wed 1/8

5:10 am-9:40 am

1 stop20h 30m

London Heathrow

Thu 1/23

3:00 pm-8:58 pm

2 stops37h 58m

$786

Idaho FallsLondon

IDA - LHR

IDALHR

Idaho Falls Fanning Field

Tue 2/11

2:28 pm-9:40 am

1 stop12h 12m

London Heathrow

Tue 2/25

6:30 am-9:07 pm

2 stops21h 37m

$791

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/13

Showing 1-10 of 36 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 13, 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 13, 2024.
Peruse reviews from past customers who have flown with American Airlines, Air Canada and Virgin Atlantic 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
8,789 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

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
8,789 reviews
Delta
8.0
Very good
8,789 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

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
1,346 reviews
Delta
8.0
Very good
8,789 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

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
1,302 reviews
Delta
8.0
Very good
8,789 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

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
7.6
Good
663 reviews
Delta
8.0
Very good
8,789 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 10

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

Air France
7.4
Good
1,537 reviews
Delta
8.0
Very good
8,789 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

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 Delta ($558), United Airlines ($597), and Air Canada ($1,113).

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

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

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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 2,744,491 searches. Data last updated November 13, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$555Average$1,208FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$653Average$854FlexibilityNo cancel feeOn-time71%
Virgin AtlanticCheapest$659Average$973FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$668Average$964FlexibilityNo cancel feeOn-time69%
DeltaCheapest$705Average$1,002FlexibilityNo cancel feeOn-timeN/A
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