HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boise

$536+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
Aug 2 — Aug 91
Sun 8/2
Sun 8/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Heathrow to Boise with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 July 3, 2026.

This Justfly.com deal was found by Cheapflights users on 6/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:40 pm
LHR
-
BOI
2 stops35h 20m
Scandinavian Airlines
Tue 9/84:00 pm
BOI
-
LHR
2 stops41h 00m
Scandinavian Airlines
Deal found 6/30$759
This United Airlines deal was found by Cheapflights users on 6/29. 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 9/232:05 pm
LHR
-
BOI
2 stops40h 54m
United Airlines
Tue 10/62:44 pm
BOI
-
LHR
1 stop11h 56m
United Airlines
Deal found 6/29$829
This United Airlines deal was found by Cheapflights users on 6/29. 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.
Sat 10/317:40 am
LHR
-
BOI
2 stops22h 06m
United Airlines
Sun 11/156:59 pm
BOI
-
LHR
1 stop29h 26m
United Airlines
Deal found 6/29$865
This United Airlines deal was found by Cheapflights users on 6/29. 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 10/301:00 pm
LHR
-
BOI
2 stops28h 14m
United Airlines
Mon 11/1612:32 pm
BOI
-
LHR
1 stop12h 23m
United Airlines
Deal found 6/29$868
This United Airlines deal was found by Cheapflights users on 7/1. 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 12/37:40 am
LHR
-
BOI
2 stops23h 19m
United Airlines
Sun 12/66:55 pm
BOI
-
LHR
1 stop33h 20m
United Airlines
Deal found 7/1$869
This United Airlines deal was found by Cheapflights users on 7/3. 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 10/12:05 pm
LHR
-
BOI
2 stops40h 54m
United Airlines
Thu 10/152:44 pm
BOI
-
LHR
1 stop11h 56m
United Airlines
Deal found 7/3$877
This Expedia deal was found by Cheapflights users on 6/29. 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.
Mon 10/511:25 am
LHR
-
BOI
1 stop13h 18m
Lufthansa
Mon 10/1910:30 am
BOI
-
LHR
1 stop16h 10m
Lufthansa
Deal found 6/29$886
This Justfly.com deal was found by Cheapflights users on 7/3. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:00 pm
LHR
-
BOI
2 stops32h 39m
Scandinavian Airlines
Thu 10/154:00 pm
BOI
-
LHR
2 stops38h 35m
Scandinavian Airlines
Deal found 7/3$896

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 July 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$759
(Justfly.com)

One-way from

$536
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$1,139
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.
Search Deals
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. 12% potential increase in price ($144 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 3, 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

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 8/26

7:05 am-11:00 pm

3 stops22h 55m

Boise Air Term. Gowen Fld

Tue 9/8

10:34 am-4:25 pm

3 stops22h 51m

$787

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 9/23

2:05 pm-11:59 pm

2 stops40h 54m

Boise Air Term. Gowen Fld

Tue 10/6

2:44 pm-9:40 am

1 stop11h 56m

$829

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Thu 12/3

7:40 am-11:59 pm

2 stops23h 19m

Boise Air Term. Gowen Fld

Sun 12/6

10:39 am-7:40 am

2 stops38h 01m

$873

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 10/5

8:00 am-5:43 pm

2 stops16h 43m

Boise Air Term. Gowen Fld

Mon 10/19

10:30 am-10:25 am

2 stops16h 55m

$905

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 8/26

2:50 pm-11:06 am

2 stops27h 16m

Boise Air Term. Gowen Fld

Tue 9/8

2:41 pm-9:40 am

1 stop11h 59m

$906

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 9/25

7:30 am-10:58 pm

2 stops22h 28m

Boise Air Term. Gowen Fld

Mon 10/5

5:30 pm-12:25 pm

1 stop11h 55m

$913

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Thu 10/1

9:05 pm-6:39 pm

3 stops28h 34m

Boise Air Term. Gowen Fld

Thu 10/15

4:00 pm-9:20 pm

3 stops22h 20m

$931
Quickest round-trip

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Thu 10/1

2:50 pm-10:33 pm

1 stop14h 43m

Boise Air Term. Gowen Fld

Thu 10/15

2:51 pm-2:10 pm

1 stop16h 19m

$953
Cheapest one-way

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 9/29

8:45 am-10:27 pm

2 stops20h 42m

$600

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Sun 9/6

9:50 am-10:27 pm

2 stops19h 37m

$636

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

Showing 1-10 of 19 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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Boise (average of $805). Flying from London Heathrow Airport to Boise in August is currently the most expensive (average of $1,500). 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.

How much does it cost to fly round-trip from London Heathrow Airport to Boise?

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 22h 55m. Scandinavian Airlines provides one of the quickest options available for as low as $787. The distance from London Heathrow Airport to Boise is about 4829 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Boise (average of $805). Flying from London Heathrow Airport to Boise in August is currently the most expensive (average of $1,500). 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 Boise?

Book flights to Boise if you plan to visit one of these locations
Meridian
Nampa
Caldwell
Ontario

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Boise

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Spokane flights
Heathrow to Spokane flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.