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$287+ 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LON
dec. 27 — jan. 31
vr 12/27
vr 1/3
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 december 22, 2024.

Round-trip from

$687
(Scandinavian Airlines)

One-way from

$287
(Kiwi.com)
From Idaho to London (LON)
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One-way flight from Idaho to London (LON)
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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 december 22, 2024.

This Delta deal was found by Cheapflights users on 12/20. 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.
za 12/2111:00 amBOI - LHR
1 stop17h 10mDelta
di 12/316:30 amLHR - BOI
2 stops22h 39mDelta
Deal found 12/20$1,839
This Virgin Atlantic deal was found by Cheapflights users on 12/20. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
za 12/213:30 pmBOI - LHR
1 stop12h 40mVirgin Atlantic
di 12/3110:45 amLHR - BOI
1 stop19h 25mVirgin Atlantic
Deal found 12/20$1,851
This United Airlines deal was found by Cheapflights users on 12/20. 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.
vr 12/277:25 pmBOI - LHR
2 stops28h 05mUnited Airlines
za 1/43:00 pmLHR - BOI
2 stops29h 28mUnited Airlines
Deal found 12/20$1,914
This Expedia deal was found by Cheapflights users on 12/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vr 12/277:25 pmBOI - LHR
2 stops30h 05mAir Canada
za 1/43:00 pmLHR - BOI
2 stops29h 28mAir Canada
Deal found 12/21$2,019
This StudentUniverse deal was found by Cheapflights users on 12/21. 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 StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 12/252:34 pmBOI - LHR
2 stops22h 01mLufthansa
vr 12/278:30 amLHR - BOI
2 stops20h 03mLufthansa
Deal found 12/21$2,309
This Travelocity deal was found by Cheapflights users on 12/21. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 12/257:03 amBOI - LHR
1 stop17h 17mMultiple Airlines
vr 12/278:50 amLHR - BOI
2 stops22h 06mMultiple Airlines
Deal found 12/21$2,329
This Expedia deal was found by Cheapflights users on 12/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 12/257:00 amGEG - LHR
1 stop21h 00mLufthansa
vr 12/278:30 amLHR - GEG
2 stops20h 34mLufthansa
Deal found 12/21$2,361
This Air Canada deal was found by Cheapflights users on 12/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 12/255:05 amGEG - LHR
3 stops17h 25mMultiple Airlines
vr 12/272:30 pmLHR - GEG
2 stops30h 20mMultiple Airlines
Deal found 12/21$2,375
This Travelocity deal was found by Cheapflights users on 12/21. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 12/257:03 amBOI - LHR
1 stop16h 17mIberia
vr 12/2710:40 amLHR - BOI
1 stop18h 12mIberia
Deal found 12/21$2,482
This Mytrip deal was found by Cheapflights users on 12/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 12/258:15 amBOI - LGW
3 stops25h 25mMultiple Airlines
vr 12/278:15 amLGW - BOI
3 stops35h 02mMultiple Airlines
Deal found 12/21$2,953
This KAYAK deal was found by Cheapflights users on 12/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
zo 12/221:23 pmBOI - LGW
2 stops46h 27mIberia
wo 12/257:35 pmLGW - BOI
2 stops33h 17mIberia
Deal found 12/21$3,295
This KAYAK deal was found by Cheapflights users on 12/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
wo 12/258:30 amBOI - LCY
2 stops17h 55mLufthansa
vr 12/2710:00 amLCY - BOI
2 stops18h 33mLufthansa
Deal found 12/21$3,442

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 2,558,603 searches. Data last updated december 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

ma 1/13

7:02 am-4:00 pm

2 stops24h 58m

London Heathrow

di 1/28

6:40 am-10:31 pm

2 stops23h 51m

$687

JacksonLondon

JAC - LHR

JACLHR

Jackson Hole

ma 1/20

7:05 am-10:00 am

1 stop19h 55m

London Heathrow

ma 1/27

8:25 pm-4:39 pm

2 stops27h 14m

$760

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

di 2/4

1:39 pm-10:35 am

1 stop13h 56m

London Heathrow

di 2/11

6:30 am-4:16 pm

2 stops16h 46m

$760

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

di 2/4

6:00 am-7:05 am

1 stop17h 05m

London Heathrow

di 2/11

8:25 pm-2:45 pm

2 stops26h 20m

$760

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

ma 3/3

7:05 am-7:20 am

1 stop17h 15m

London Heathrow

di 3/11

10:40 am-9:56 pm

1 stop17h 16m

$763

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

di 2/4

5:30 am-7:55 am

2 stops19h 25m

London Heathrow

di 2/11

6:30 am-4:16 pm

2 stops16h 46m

$764

SpokaneLondon

GEG - LHR

GEGLHR

Spokane

di 2/4

5:00 am-6:25 am

2 stops17h 25m

London Heathrow

di 2/11

6:30 am-6:44 pm

2 stops20h 14m

$764

JacksonLondon

JAC - LHR

JACLHR

Jackson Hole

ma 2/24

7:05 am-11:40 am

2 stops21h 35m

London Heathrow

ma 3/3

5:35 pm-4:38 pm

2 stops30h 03m

$779

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

wo 4/23

7:30 am-2:10 pm

1 stop23h 40m

London Heathrow

wo 4/30

2:05 pm-5:55 pm

2 stops34h 50m

$805

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

wo 4/23

12:30 pm-9:40 pm

3 stops26h 10m

London Heathrow

wo 4/30

6:40 am-9:35 pm

2 stops21h 55m

$816

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 56 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 $661). Flying from Idaho to London in June is currently the most expensive (average of $1,135). 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 december 22, 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 december 22, 2024.
Peruse reviews from past customers who have flown with United Airlines, American Airlines and Icelandair 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
8,594 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

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
8,594 reviews
Delta
8.0
Very good
8,594 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

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
9,537 reviews
Delta
8.0
Very good
8,594 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 10

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

KLM
7.8
Good
1,342 reviews
Delta
8.0
Very good
8,594 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 10

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

Finnair
7.7
Good
1,283 reviews
Delta
8.0
Very good
8,594 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Reviews

1 / 10

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

SWISS
7.6
Good
1,605 reviews
Delta
8.0
Very good
8,594 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

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 ($375), Delta ($482), and Air Canada ($488).

  • 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 Spokane - 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 $661). Flying from Idaho to London in June is currently the most expensive (average of $1,135). 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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Top 4 airlines flying from Idaho to London

Discover the top 4 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 2,558,603 searches. Data last updated december 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$654Average$948FlexibilityNo cancel feeOn-time69%
Virgin AtlanticCheapest$670Average$947FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$689Average$872FlexibilityNo cancel feeOn-time71%
DeltaCheapest$698Average$1,091FlexibilityNo cancel feeOn-timeN/A
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