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$324+ Cheap flights from Boise (BOI) to Heathrow (LHR)

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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LHR
Feb 1 — Feb 81
Sun 2/1
Sun 2/8
1 adult, Economy
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Cheap flight deals from Boise to Heathrow

Cheapest flights from Boise to Heathrow
Explore the most affordable flight options available from Boise to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 2, 2026.

This Delta deal was found by Cheapflights users on 12/30. 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 12/308:20 amBOI - LHR
1 stop19h 35mDelta
Tue 1/68:40 amLHR - BOI
2 stops19h 15mDelta
Deal found 12/30$1,707
This Ovago deal was found by Cheapflights users on 12/30. 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 12/308:20 amBOI - LHR
1 stop14h 35mLufthansa
Tue 1/67:25 amLHR - BOI
1 stop22h 32mLufthansa
Deal found 12/30$1,721
This United Airlines deal was found by Cheapflights users on 12/30. 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.
Tue 12/302:40 pmBOI - LHR
1 stop12h 00mUnited Airlines
Tue 1/67:25 amLHR - BOI
1 stop22h 32mUnited Airlines
Deal found 12/30$1,734

Find flight deals from Boise to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Heathrow (LHR). 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 2, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$607
(Cheapflightsfares)

One-way from

$324
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$1,507
Provider with most accurate pricing for Boise Air Term. Gowen Fld-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-London Heathrow flights.
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From Boise Air Term. Gowen Fld to London Heathrow
Search Deals
One-way flight from Boise Air Term. Gowen Fld to London Heathrow
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($161 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Heathrow 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 2, 2026.
Use the filters below to find and compare flights from Boise to London Heathrow Airport that are best for you.

Fly from

Boise

Fly to

Heathrow

Route

Depart

Return

Price

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 2/17

2:40 pm-9:40 am

1 stop12h 00m

London Heathrow

Tue 2/24

7:30 am-9:32 pm

2 stops21h 02m

$609

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 1/27

12:19 pm-7:55 am

1 stop12h 36m

London Heathrow

Tue 2/3

11:35 am-6:07 pm

1 stop13h 32m

$624

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Thu 1/29

2:37 pm-9:40 am

1 stop12h 03m

London Heathrow

Wed 2/4

6:35 am-9:52 pm

2 stops22h 17m

$630

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Fri 1/30

8:15 am-5:55 am

1 stop14h 40m

London Heathrow

Wed 2/4

6:35 am-9:52 pm

2 stops22h 17m

$630

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 2/17

8:50 am-10:30 am

1 stop18h 40m

London Heathrow

Fri 2/27

6:30 am-6:22 pm

2 stops18h 52m

$631

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 1/27

8:10 am-7:10 am

2 stops16h 00m

London Heathrow

Tue 2/3

7:40 am-6:07 pm

2 stops17h 27m

$633

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 2/17

5:24 pm-9:20 pm

2 stops20h 56m

London Heathrow

Fri 2/27

6:35 am-10:12 am

2 stops34h 37m

$635

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 2/17

5:50 am-7:05 am

2 stops18h 15m

London Heathrow

Tue 2/24

6:30 am-8:55 pm

2 stops21h 25m

$636

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 2/17

5:50 am-8:05 am

2 stops19h 15m

London Heathrow

Thu 2/26

6:30 am-11:45 pm

2 stops24h 15m

$636

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Fri 1/30

5:45 am-6:20 am

2 stops17h 35m

London Heathrow

Thu 2/5

8:40 am-8:55 pm

2 stops19h 15m

$636

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/1

Showing 1-10 of 18 results
1
2

Compare providers for flights from Boise to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to Heathrow in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boise-London Heathrow Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boise-London Heathrow Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boise-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boise-London Heathrow Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boise to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Boise 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 Boise to London Heathrow Airport

What is the cheapest month to book a flight from Boise to London Heathrow Airport?

Currently, July is the cheapest month in which you can book a flight from Boise to London Heathrow Airport (average of $604). Flying from Boise to London Heathrow Airport in June is currently the most expensive (average of $1,085). 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.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated January 2, 2026.
Read reviews from past customers who have flown Delta, KLM, and Virgin Atlantic from Boise to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,021 reviews

Entertainment

7.8

Crew

8.5

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,021 reviews
Delta
7.9
Good
8,021 reviews

Entertainment

7.8

Crew

8.5

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,435 reviews
Delta
7.9
Good
8,021 reviews

Entertainment

7.8

Crew

8.5

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Virgin Atlantic
7.5
Good
678 reviews
Delta
7.9
Good
8,021 reviews

Entertainment

7.8

Crew

8.5

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,134 reviews
Delta
7.9
Good
8,021 reviews

Entertainment

7.8

Crew

8.5

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,072 reviews
Delta
7.9
Good
8,021 reviews

Entertainment

7.8

Crew

8.5

Food

7.2

Boarding

8.1

Comfort

7.9

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Boise to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boise to London Heathrow?

    Located just 3.3 mi from the city center, Boise Air Term. Gowen Fld is the airport most travelers will use when flying to London Heathrow from Boise. Booking flights from Air Term. Gowen Fld (BOI) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 5 different airlines.

  • How long is the flight from Boise to London Heathrow Airport?

    A quick flight from Boise to London Heathrow Airport can take about 12h. Lufthansa provides one of the quickest options available for as low as $609. The distance between Boise and London Heathrow Airport is about 4829 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Boise to London Heathrow Airport round-trip?

    Our cheapest airline available from Boise to London Heathrow Airport is KLM. Our recent data shows that you can find tickets from as low as $577 on this airline. Additional options worth looking into are Virgin Atlantic and United Airlines, starting at $604 and $639 round-trip. KLM is priced at 43% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Boise to Heathrow that include hotel bookings?

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

  • How can I find direct flights from Boise to Heathrow?

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

  • Can I find deals for business class flights from Boise to Heathrow?

    Yes. Cheapflights offers flight deals from Boise to Heathrow 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 Boise to London Heathrow Airport?

    Currently, July is the cheapest month in which you can book a flight from Boise to London Heathrow Airport (average of $604). Flying from Boise to London Heathrow Airport in June is currently the most expensive (average of $1,085). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Croydon
Orpington
Northampton
Watford
Hayes
Borehamwood
Broadway
Aylesbury
Chipping Norton
Horley
Kingston upon Thames

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Boise to Heathrow

Discover the top 5 airlines that operate flights from Boise to Heathrow. 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 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$577Average$774FlexibilityNo cancel feeOn-time75%
Virgin AtlanticCheapest$604Average$901FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$639Average$939FlexibilityNo cancel feeOn-time69%
DeltaCheapest$701Average$970FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$703Average$992FlexibilityNo cancel feeOn-time71%

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