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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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — LHR
Jul 31 — Aug 71
Fri 7/31
Fri 8/7
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 July 1, 2026.

This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:14 pm
BOI
-
LHR
2 stops22h 26m
Scandinavian Airlines
Mon 9/287:30 pm
LHR
-
BOI
2 stops30h 10m
Scandinavian Airlines
Deal found 6/30$872
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.
Tue 9/296:25 am
BOI
-
LHR
1 stop23h 00m
United Airlines
Wed 10/77:25 am
LHR
-
BOI
2 stops19h 04m
United Airlines
Deal found 6/29$873
This FlightHub deal was found by Cheapflights users on 6/28. 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.
Wed 10/710:30 am
BOI
-
LHR
2 stops19h 50m
Air Canada
Tue 10/133:05 pm
LHR
-
BOI
2 stops28h 58m
Air Canada
Deal found 6/28$878
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/292:16 pm
BOI
-
LHR
1 stop17h 49m
Alaska Airlines
Wed 10/75:00 pm
LHR
-
BOI
1 stop13h 58m
Alaska Airlines
Deal found 6/29$884
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:25 am
BOI
-
LHR
2 stops22h 25m
Air Canada
Fri 10/232:05 pm
LHR
-
BOI
2 stops38h 30m
Air Canada
Deal found 6/29$889
This American Airlines deal was found by Cheapflights users on 6/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:24 pm
BOI
-
LHR
1 stop12h 51m
Multiple Airlines
Tue 10/1310:30 am
LHR
-
BOI
1 stop19h 27m
Multiple Airlines
Deal found 6/28$902
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.
Mon 9/2110:31 am
BOI
-
LHR
1 stop16h 09m
United Airlines
Wed 9/309:30 am
LHR
-
BOI
2 stops43h 05m
United Airlines
Deal found 6/29$911
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:30 am
BOI
-
LHR
2 stops22h 20m
Air Canada
Wed 9/302:05 pm
LHR
-
BOI
2 stops38h 30m
Air Canada
Deal found 6/29$918
This American Airlines deal was found by Cheapflights users on 6/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:11 am
BOI
-
LHR
2 stops16h 54m
American Airlines
Wed 8/198:15 am
LHR
-
BOI
2 stops20h 56m
American Airlines
Deal found 6/27$920
This Iberia deal was found by Cheapflights users on 6/28. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:44 am
BOI
-
LHR
1 stop16h 36m
Iberia
Mon 11/26:15 am
LHR
-
BOI
2 stops22h 48m
Iberia
Deal found 6/28$922

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 July 1, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$872
(oojo)

One-way from

$334
(United Airlines)

Popular in

January

Cheapest in

October

Average price

$994
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. 16% potential increase in price ($217 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($83 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 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 July 1, 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

Wed 10/7

2:44 pm-12:35 pm

1 stop14h 51m

London Heathrow

Tue 10/13

6:55 am-10:33 pm

2 stops22h 38m

$873

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 9/29

6:25 am-6:30 am

2 stops17h 05m

London Heathrow

Wed 10/7

7:25 am-7:29 pm

2 stops19h 04m

$877
Quickest round-trip

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 9/29

7:48 pm-3:05 pm

1 stop12h 17m

London Heathrow

Wed 10/7

5:00 pm-11:58 pm

1 stop13h 58m

$884

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Mon 8/10

5:46 pm-12:25 pm

1 stop11h 39m

London Heathrow

Thu 8/20

7:25 am-7:24 pm

2 stops18h 59m

$933

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 9/8

12:14 pm-9:40 pm

2 stops26h 26m

London Heathrow

Tue 9/22

7:05 am-10:34 pm

3 stops22h 29m

$980

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 9/15

10:34 am-9:40 pm

2 stops28h 06m

London Heathrow

Mon 9/28

7:50 pm-6:40 pm

3 stops29h 50m

$981

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Sun 8/30

2:44 pm-12:35 pm

1 stop14h 51m

London Heathrow

Sun 9/6

7:25 am-7:24 pm

2 stops18h 59m

$1,032
Cheapest one-way

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Mon 10/19

8:00 pm-8:05 am

3 stops29h 05m

$337

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 9/15

10:31 am-9:40 am

1 stop16h 09m

$463
Quickest one-way

BoiseLondon

BOI - LHR

BOILHR

Boise Air Term. Gowen Fld

Tue 9/15

7:48 pm-3:05 pm

1 stop12h 17m

$463

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/27

Showing 1-10 of 11 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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Boise-London Heathrow Airport flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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, October is the cheapest month in which you can book a flight from Boise to London Heathrow Airport (average of $810). Flying from Boise to London Heathrow Airport in January is currently the most expensive (average of $2,021). 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 July 1, 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
7.8
Good
8,453 reviews

Comfort

7.8

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,453 reviews
Delta
7.8
Good
8,453 reviews

Comfort

7.8

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Virgin Atlantic
7.5
Good
689 reviews
Delta
7.8
Good
8,453 reviews

Comfort

7.8

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,917 reviews
Delta
7.8
Good
8,453 reviews

Comfort

7.8

Entertainment

7.8

Crew

8.5

Food

7.2

Overall

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 12h 17m. United Airlines provides one of the quickest options available for as low as $884. 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 $631 and $648 round-trip. Virgin Atlantic is priced at 45% 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, October is the cheapest month in which you can book a flight from Boise to London Heathrow Airport (average of $810). Flying from Boise to London Heathrow Airport in January is currently the most expensive (average of $2,021). 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
Dorking
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Wembley
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
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 July 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest$600Average$931FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$631Average$896FlexibilityNo cancel feeOn-time69%
DeltaCheapest$648Average$945FlexibilityNo cancel feeOn-timeN/A

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