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Boise

$476+ 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Boise Air Term. Gowen Fld are usually found in January or November, booked 23 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap 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 julio 3, 2025.

Round-trip from

$844
(United Airlines)

One-way from

$476
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$1,154
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
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Highest demand for flights based on searches. 16% potential increase in price ($190 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 julio 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/2. 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.
dom. 9/712:05 pmLHR - BOI
2 stops17h 36mUnited Airlines
sáb. 9/207:00 amBOI - LHR
2 stops16h 45mUnited Airlines
Deal found 7/2$844
This Lufthansa deal was found by Cheapflights users on 7/2. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/52:50 pmLHR - BOI
1 stop13h 25mLufthansa
sáb. 9/2012:27 pmBOI - LHR
1 stop12h 53mLufthansa
Deal found 7/2$848
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/216:00 pmLHR - BOI
2 stops24h 39mMultiple Airlines
dom. 11/306:15 amBOI - LHR
2 stops17h 15mMultiple Airlines
Deal found 7/3$857
This American Airlines deal was found by Cheapflights users on 7/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/56:10 amLHR - BOI
2 stops22h 38mAmerican Airlines
dom. 9/211:07 pmBOI - LHR
2 stops33h 43mAmerican Airlines
Deal found 7/2$875
This Air Canada deal was found by Cheapflights users on 7/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/69:30 amLHR - BOI
2 stops20h 11mAir Canada
vie. 9/1912:27 pmBOI - LHR
2 stops16h 23mAir Canada
Deal found 7/2$889
This Delta deal was found by Cheapflights users on 7/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/58:40 amLHR - BOI
2 stops18h 40mDelta
vie. 9/1911:27 amBOI - LHR
2 stops16h 58mDelta
Deal found 7/2$935
This The Travel House 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/188:20 amLHR - BOI
1 stop20h 23mFinnair
jue. 8/287:00 amBOI - LHR
2 stops16h 20mFinnair
Deal found 7/3$949
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/297:30 pmLHR - BOI
2 stops29h 46mScandinavian Airlines
sáb. 9/133:45 pmBOI - LHR
3 stops22h 50mScandinavian Airlines
Deal found 7/1$960

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 julio 3, 2025.
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

dom. 9/7

12:05 pm-10:41 pm

2 stops17h 36m

Boise Air Term. Gowen Fld

sáb. 9/20

7:00 am-6:45 am

2 stops16h 45m

$844

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

vie. 9/5

2:50 pm-9:15 pm

1 stop13h 25m

Boise Air Term. Gowen Fld

sáb. 9/20

12:27 pm-8:20 am

1 stop12h 53m

$848

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

vie. 11/21

6:00 pm-11:39 am

2 stops24h 39m

Boise Air Term. Gowen Fld

dom. 11/30

6:15 am-6:30 am

2 stops17h 15m

$857

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

vie. 9/5

6:10 am-9:48 pm

2 stops22h 38m

Boise Air Term. Gowen Fld

dom. 9/21

1:07 pm-5:50 am

2 stops33h 43m

$875

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

mié. 8/27

9:30 am-10:21 pm

2 stops19h 51m

Boise Air Term. Gowen Fld

vie. 9/5

7:45 am-11:50 am

2 stops21h 05m

$927

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

vie. 9/5

8:40 am-8:20 pm

2 stops18h 40m

Boise Air Term. Gowen Fld

vie. 9/19

11:27 am-11:25 am

2 stops16h 58m

$935

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

lun. 8/18

8:20 am-9:43 pm

1 stop20h 23m

Boise Air Term. Gowen Fld

jue. 8/28

7:00 am-6:20 am

2 stops16h 20m

$949

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

vie. 8/29

7:30 pm-6:16 pm

2 stops29h 46m

Boise Air Term. Gowen Fld

sáb. 9/13

3:45 pm-9:35 pm

3 stops22h 50m

$960

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

jue. 9/18

3:05 pm-1:39 pm

2 stops53h 34m

$476

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

jue. 9/11

7:30 am-5:59 pm

2 stops17h 29m

$775

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 16 results
1
2

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 June 27, 2025.

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 23 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, October is the cheapest month in which you can book a flight from London Heathrow Airport to Boise (average of $314). Flying from London Heathrow Airport to Boise in June is currently the most expensive (average of $398). 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?

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated julio 3, 2025.
Peruse reviews from past customers who have flown with Delta, Finnair, and United Airlines from London Heathrow Airport to Boise to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,970 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,306 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,845 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Scandinavian Airlines
7.3
Good
1,416 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What are the cheapest airlines flying from London Heathrow Airport to Boise round-trip?

    Our cheapest airline available from London Heathrow Airport to Boise is United Airlines. Our recent data shows that you can find tickets from as low as $844 on this airline. Additional options worth looking into are Lufthansa and American Airlines, starting at $848 and $875 round-trip. These flights start at 10% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from London Heathrow Airport to Boise one-way?

    $775 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on Iberia and Finnair, with prices starting from $974 and $1,072, respectively.

  • 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, October is the cheapest month in which you can book a flight from London Heathrow Airport to Boise (average of $314). Flying from London Heathrow Airport to Boise in June is currently the most expensive (average of $398). 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
Meridian
Nampa
McCall
Ontario
Caldwell

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