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Boise

$598+ 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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
Feb 2 — Feb 91
Mon 2/2
Mon 2/9
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 January 3, 2026.

This United Airlines deal was found by Cheapflights users on 1/1. 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 3/27:40 amLHR - BOI
2 stops33h 32mUnited Airlines
Mon 3/168:39 amBOI - LHR
1 stop16h 46mUnited Airlines
Deal found 1/1$751
This United Airlines deal was found by Cheapflights users on 1/1. 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 2/168:30 amLHR - BOI
2 stops21h 26mUnited Airlines
Mon 2/236:25 amBOI - LHR
2 stops16h 30mUnited Airlines
Deal found 1/1$753
This United Airlines deal was found by Cheapflights users on 1/2. 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 2/98:30 amLHR - BOI
2 stops21h 27mUnited Airlines
Mon 2/165:00 amBOI - LHR
1 stop21h 40mUnited Airlines
Deal found 1/2$754
This United Airlines deal was found by Cheapflights users on 1/1. 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 amLHR - BOI
2 stops22h 10mUnited Airlines
Mon 4/275:00 amBOI - LHR
1 stop21h 40mUnited Airlines
Deal found 1/1$767
This United Airlines deal was found by Cheapflights users on 1/1. 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.
Fri 2/2711:10 amLHR - BOI
2 stops19h 38mUnited Airlines
Mon 3/96:15 amBOI - LHR
1 stop21h 25mUnited Airlines
Deal found 1/1$779
This United Airlines deal was found by Cheapflights users on 1/1. 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 1/298:30 amLHR - BOI
2 stops21h 27mUnited Airlines
Thu 2/52:37 pmBOI - LHR
1 stop12h 03mUnited Airlines
Deal found 1/1$780
This United Airlines deal was found by Cheapflights users on 1/2. 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.
Fri 2/206:30 amLHR - BOI
2 stops21h 25mUnited Airlines
Mon 3/210:25 amBOI - LHR
1 stop16h 15mUnited Airlines
Deal found 1/2$782
This United Airlines deal was found by Cheapflights users on 1/2. 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 2/101:45 pmLHR - BOI
1 stop14h 40mUnited Airlines
Wed 2/188:41 amBOI - LHR
1 stop20h 19mUnited Airlines
Deal found 1/2$785
This United Airlines deal was found by Cheapflights users on 12/31. 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.
Fri 2/66:30 amLHR - BOI
2 stops20h 21mUnited Airlines
Sun 2/85:16 pmBOI - LHR
1 stop33h 24mUnited Airlines
Deal found 12/31$793

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 January 3, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$751
(United Airlines)

One-way from

$598
(Kiwi.com)

Popular in

February

Cheapest in

November

Average price

$814
Provider with most accurate pricing for London Heathrow-Boise Air Term. Gowen Fld flight deals.
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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
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One-way flight from London Heathrow to Boise Air Term. Gowen Fld
Search Deals
High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 3% potential price decrease ($32 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 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 January 3, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Boise that are best for you.

Fly from

Heathrow

Fly to

Boise

Route

Depart

Return

Price

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 3/2

7:40 am-10:12 am

2 stops33h 32m

Boise Air Term. Gowen Fld

Mon 3/16

8:39 am-7:25 am

1 stop16h 46m

$751

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 2/16

8:30 am-10:56 pm

2 stops21h 26m

Boise Air Term. Gowen Fld

Mon 2/23

6:25 am-5:55 am

2 stops16h 30m

$753

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 2/9

8:30 am-10:57 pm

2 stops21h 27m

Boise Air Term. Gowen Fld

Mon 2/16

5:00 am-9:40 am

1 stop21h 40m

$754

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 4/20

7:25 am-10:35 pm

2 stops22h 10m

Boise Air Term. Gowen Fld

Mon 4/27

5:00 am-11:35 am

2 stops23h 35m

$767

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 5/4

6:55 am-9:54 am

2 stops33h 59m

Boise Air Term. Gowen Fld

Wed 5/13

8:02 am-10:10 am

1 stop19h 08m

$767

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 2/20

6:30 am-8:55 pm

2 stops21h 25m

Boise Air Term. Gowen Fld

Mon 3/2

10:25 am-9:40 am

1 stop16h 15m

$782

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 2/9

11:35 am-6:07 pm

1 stop13h 32m

Boise Air Term. Gowen Fld

Thu 2/19

2:40 pm-9:40 am

1 stop12h 00m

$785

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 2/11

11:35 am-7:45 pm

1 stop15h 10m

Boise Air Term. Gowen Fld

Thu 2/19

8:05 am-7:55 am

1 stop16h 50m

$785

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 6/1

8:20 am-11:05 pm

1 stop21h 45m

$774

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Thu 6/4

8:05 pm-5:41 pm

2 stops52h 36m

$775

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/2

Showing 1-10 of 16 results
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on London Heathrow Airport-Boise flight deals on Cheapflights vs. eDreams >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 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 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

How far ahead should I book a flight from London Heathrow Airport to Boise?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Boise. Price data was last updated on January 2, 2026.

The price you pay for your flight from London Heathrow Airport to Boise may vary depending on when you book. For the best chance of a lower fare, look to book 82 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $682). Flying from London Heathrow Airport to Boise in February is currently the most expensive (average of $955). 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 33h 32m. United Airlines provides one of the quickest options available for as low as $751. 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 $682). Flying from London Heathrow Airport to Boise in February is currently the most expensive (average of $955). 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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