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Heathrow

$334+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LHR
May 23 — May 301
Sat 5/23
Sat 5/30
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 April 23, 2026.

This United Airlines deal was found by Cheapflights users on 4/20. 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.
Sun 11/86:55 pm
BOI
-
LHR
1 stop34h 05m
United Airlines
Wed 11/1111:05 am
LHR
-
BOI
2 stops43h 01m
United Airlines
Deal found 4/20$753
This United Airlines deal was found by Cheapflights users on 4/20. 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.
Sun 10/188:15 am
BOI
-
LHR
1 stop19h 55m
United Airlines
Tue 10/276:50 am
LHR
-
BOI
2 stops22h 16m
United Airlines
Deal found 4/20$878
This United Airlines deal was found by Cheapflights users on 4/18. 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 12/18:20 am
BOI
-
LHR
1 stop16h 05m
United Airlines
Wed 12/96:35 am
LHR
-
BOI
2 stops18h 20m
United Airlines
Deal found 4/18$879
This United Airlines deal was found by Cheapflights users on 4/19. 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 9/157:05 am
BOI
-
LHR
1 stop20h 05m
United Airlines
Wed 9/232:05 pm
LHR
-
BOI
2 stops30h 20m
United Airlines
Deal found 4/19$887
This FlightHub deal was found by Cheapflights users on 4/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:30 am
BOI
-
LHR
2 stops17h 00m
Air Canada
Wed 9/232:05 pm
LHR
-
BOI
2 stops39h 27m
Air Canada
Deal found 4/20$891
This KAYAK deal was found by Cheapflights users on 4/23. 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.
Sat 10/312:42 pm
BOI
-
LHR
2 stops20h 18m
Scandinavian Airlines
Mon 10/125:00 pm
LHR
-
BOI
2 stops37h 08m
Scandinavian Airlines
Deal found 4/23$894
This Air Canada deal was found by Cheapflights users on 4/19. 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.
Mon 8/246:30 am
BOI
-
LHR
2 stops17h 05m
Air Canada
Fri 8/282:05 pm
LHR
-
BOI
2 stops30h 30m
Air Canada
Deal found 4/19$895
This FlightHub deal was found by Cheapflights users on 4/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/102:05 pm
BOI
-
LHR
2 stops33h 30m
Air Canada
Thu 8/205:40 pm
LHR
-
BOI
2 stops34h 45m
Air Canada
Deal found 4/20$900

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 April 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$815
(Expedia)

One-way from

$334
(United Airlines)

Popular in

January

Cheapest in

August

Average price

$913
Provider with most accurate pricing for Boise Air Term. Gowen Fld-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-London Heathrow flights.
Search Deals
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. 10% potential increase in price ($120 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 April 2026
Search Deals

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 April 23, 2026.
Use the filters below to find and compare flights from Boise to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Sun 10/18

6:25 am-9:40 am

1 stop20h 15m

London Heathrow

Mon 11/2

5:30 pm-9:15 pm

2 stops34h 45m

$910

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 9/15

2:45 pm-3:35 pm

1 stop17h 50m

London Heathrow

Wed 9/23

6:30 am-3:38 pm

2 stops16h 08m

$938

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Sat 10/3

5:44 pm-9:40 am

1 stop32h 56m

London Heathrow

Mon 10/12

2:05 pm-10:32 pm

2 stops39h 27m

$943
Quickest round-trip

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Sun 9/13

2:45 pm-12:10 pm

1 stop14h 25m

London Heathrow

Tue 9/22

11:45 am-11:29 pm

2 stops18h 44m

$972

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Sun 10/4

12:42 pm-6:50 pm

3 stops23h 08m

London Heathrow

Mon 10/12

6:40 am-11:08 pm

2 stops23h 28m

$1,006

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 6/2

10:39 am-4:00 pm

2 stops22h 21m

London Heathrow

Tue 6/9

7:05 am-10:28 pm

3 stops22h 23m

$1,166

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Wed 5/20

8:56 am-12:10 pm

1 stop20h 14m

London Heathrow

Mon 6/1

8:40 am-8:32 pm

2 stops18h 52m

$1,174
Cheapest one-way

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 9/15

2:55 pm-12:50 pm

1 stop14h 55m

$334

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 7/21

12:14 pm-12:10 pm

1 stop16h 56m

$334

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 9/15

5:00 am-6:55 am

2 stops18h 55m

$334

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/18

Showing 1-10 of 15 resultsSorted by cheapest first
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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice 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 Boise-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >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 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 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, August is the cheapest month in which you can book a flight from Boise to London Heathrow Airport (average of $797). Flying from Boise to London Heathrow Airport in January is currently the most expensive (average of $1,487). 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 Boise to London Heathrow Airport?

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 April 23, 2026.
Read reviews from past customers who have flown Delta,Virgin Atlantic, andUnited Airlines 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
8,434 reviews

Overall

7.9

Comfort

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

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
8,434 reviews
Delta
7.9
Good
8,434 reviews

Overall

7.9

Comfort

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

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
687 reviews
Delta
7.9
Good
8,434 reviews

Overall

7.9

Comfort

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

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
9,635 reviews
Delta
7.9
Good
8,434 reviews

Overall

7.9

Comfort

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Boarding

8.1

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 3 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 19h 30m. Lufthansa provides one of the quickest options available for as low as $873. 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 Virgin Atlantic. Our recent data shows that you can find tickets from as low as $600 on this airline. Additional options worth looking into are United Airlines and Delta, starting at $639 and $678 round-trip. Virgin Atlantic is priced at 42% 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, August is the cheapest month in which you can book a flight from Boise to London Heathrow Airport (average of $797). Flying from Boise to London Heathrow Airport in January is currently the most expensive (average of $1,487). 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
Winchester
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Borehamwood
Broadway
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Boise to Heathrow

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

Top 3 airlines flying from Boise to Heathrow

Discover the top 3 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 April 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$600Average$954FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$639Average$865FlexibilityNo cancel feeOn-time69%
DeltaCheapest$678Average$900FlexibilityNo cancel feeOn-timeN/A

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