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Boise

$555+ Cheap flights from Heathrow (LHR) to Boise (BOI)

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
Apr 13 — Apr 201
Mon 4/13
Mon 4/20
1 adult, Economy
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Cheap flight deals from Heathrow to Boise

Cheapest flights from Heathrow to Boise
Explore the most affordable flight options available from Heathrow to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 14, 2026.

This deal was found by Cheapflights users on 3/12. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2710:35 am
LHR
-
BOI
1 stop17h 42m
United Airlines
Sun 5/36:23 am
BOI
-
LHR
1 stop18h 02m
United Airlines
Deal found 3/12$674
This United Airlines deal was found by Cheapflights users on 3/9. 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 9/308:40 am
LHR
-
BOI
2 stops19h 35m
United Airlines
Wed 10/75:22 pm
BOI
-
LHR
1 stop11h 58m
United Airlines
Deal found 3/9$801
This United Airlines deal was found by Cheapflights users on 3/10. 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 4/207:25 am
LHR
-
BOI
2 stops19h 28m
United Airlines
Mon 4/275:00 am
BOI
-
LHR
2 stops17h 55m
United Airlines
Deal found 3/10$802
This United Airlines deal was found by Cheapflights users on 3/9. 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 9/237:30 am
LHR
-
BOI
2 stops20h 49m
United Airlines
Sun 9/275:22 pm
BOI
-
LHR
1 stop33h 18m
United Airlines
Deal found 3/9$814
This TravelUp deal was found by Cheapflights users on 3/9. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:25 am
LHR
-
BOI
1 stop18h 07m
Multiple Airlines
Tue 9/810:37 am
BOI
-
LHR
1 stop16h 03m
Multiple Airlines
Deal found 3/9$824
This Expedia deal was found by Cheapflights users on 3/9. 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.
Wed 9/3011:25 am
LHR
-
BOI
1 stop13h 30m
Lufthansa
Wed 10/72:43 pm
BOI
-
LHR
1 stop11h 57m
Lufthansa
Deal found 3/9$826

Find flight deals from Heathrow to Boise

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Boise (BOI). 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 March 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$674

One-way from

$555
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$850
Provider with most accurate pricing for London Heathrow-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-Boise Air Term. Gowen Fld flights.
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From London Heathrow to Boise Air Term. Gowen Fld
Search Deals
One-way flight from London Heathrow to Boise Air Term. Gowen Fld
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Boise 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 March 14, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 9/1

6:55 am-5:53 pm

2 stops17h 58m

Boise Air Term. Gowen Fld

Tue 9/8

11:46 am-12:20 pm

2 stops17h 34m

$805

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 4/20

10:50 am-10:35 pm

2 stops18h 45m

Boise Air Term. Gowen Fld

Mon 4/27

6:15 am-7:25 am

1 stop18h 10m

$805

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 6/8

6:50 am-10:51 pm

2 stops23h 01m

Boise Air Term. Gowen Fld

Mon 6/29

8:30 am-6:45 am

1 stop15h 15m

$967

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 6/23

8:00 am-5:56 pm

2 stops16h 56m

Boise Air Term. Gowen Fld

Sun 7/5

7:05 pm-7:25 am

1 stop29h 20m

$1,004

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 6/23

6:40 am-6:35 pm

2 stops18h 55m

Boise Air Term. Gowen Fld

Sun 7/5

12:42 pm-5:00 pm

3 stops21h 18m

$1,478
Cheapest one-way

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 5/6

6:00 am-11:01 pm

2 stops24h 01m

$637
Quickest one-way

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 9/1

2:50 pm-9:25 pm

1 stop13h 35m

$672

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 5/6

11:25 am-6:15 pm

1 stop13h 50m

$675

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 6/1

9:25 pm-5:13 pm

2 stops26h 48m

$717

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 6/30

6:00 am-12:43 pm

3 stops37h 43m

$727

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Compare providers for flights from Heathrow to Boise

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 Heathrow to Boise in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 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 London Heathrow Airport-Boise flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Boise flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Boise flights, Cheapflights users trust FlightHub the most. FlightHub 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 London Heathrow Airport-Boise 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 Heathrow to Boise

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

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

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Boise (average of $684). Flying from London Heathrow Airport to Boise in February is currently the most expensive (average of $914). 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.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Boise. 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 into for flights to Boise from London Heathrow?

    For a flight from London Heathrow to Boise, you will be flying into Air Term. Gowen Fld. Boise Air Term. Gowen Fld (BOI) is just 3.3 mi from the center of the city. Air Term. Gowen Fld is the only Boise airport and it handles 0 inbound flights from London Heathrow per day. 0 airlines have flights to Boise Air Term. Gowen Fld from London Heathrow on a regular basis.

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

    A quick flight from London Heathrow Airport to Boise can take about 17h 42m. United Airlines provides one of the quickest options available for as low as $674. The distance from London Heathrow Airport to Boise is about 4829 mi.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Boise (average of $684). Flying from London Heathrow Airport to Boise in February is currently the most expensive (average of $914). 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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