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Cheap flights from London Heathrow Airport to Boise from £444

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 14/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
9 Jul — 16 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Boise

Enter your travel dates to find the best prices.

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 9 June 2026.

Fri 4/913:05
LHR
-
BOI
2 stops16h 28m
Multiple Airlines
Fri 18/916:20
BOI
-
LHR
2 stops21h 00m
Multiple Airlines
Deal found 5/6£633
Mon 22/613:00
LHR
-
BOI
1 stop17h 55m
United Airlines
Sun 28/617:46
BOI
-
LHR
1 stop11h 49m
United Airlines
Deal found 8/6£634
Sat 5/906:55
LHR
-
BOI
2 stops19h 29m
United Airlines
Mon 7/912:24
BOI
-
LHR
1 stop35h 21m
United Airlines
Deal found 7/6£690
Fri 4/907:25
LHR
-
BOI
2 stops22h 28m
United Airlines
Fri 18/906:30
BOI
-
LHR
1 stop22h 55m
United Airlines
Deal found 5/6£725
Fri 4/911:25
LHR
-
BOI
1 stop13h 33m
Lufthansa
Mon 7/912:24
BOI
-
LHR
1 stop35h 21m
Lufthansa
Deal found 8/6£731
Fri 4/911:25
LHR
-
BOI
1 stop13h 33m
Lufthansa
Fri 18/914:41
BOI
-
LHR
1 stop11h 59m
Lufthansa
Deal found 5/6£741

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 9 June 2026.

Round-trip from

£633

One-way from

£444

Popular in

August

Cheapest in

November

Average price

£821
4/9-18/9
  • 4/9-18/9
  • 4 total stops
  • 37h 28m total
  • London to Boise
Search Deals
14/9
  • 14/9
  • 3 total stops
  • 56h 35m total
  • London to Boise
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£73 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 9 June 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 return flight

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Sat 5/9

06:55-19:24

2 stops19h 29m

Boise Air Term. Gowen Fld

Mon 7/9

12:24-06:45

1 stop35h 21m

£690

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 4/9

07:25-22:53

2 stops22h 28m

Boise Air Term. Gowen Fld

Fri 18/9

06:30-12:25

1 stop22h 55m

£725
Fastest return journey

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Thu 9/7

06:55-17:56

2 stops18h 01m

Boise Air Term. Gowen Fld

Wed 22/7

06:30-12:35

1 stop23h 05m

£800
Cheapest one-way

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 11/9

08:30-22:53

2 stops21h 23m

£510

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 3/7

14:10-15:12

2 stops32h 02m

£597

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Sat 4/7

14:10-15:12

2 stops32h 02m

£597

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 23/6

13:05-22:05

1 stop16h 00m

£731

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Sat 27/6

13:00-21:40

1 stop15h 40m

£731

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 23/6

13:05-22:05

1 stop16h 00m

£731
Fastest single journey

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Sat 27/6

14:10-22:28

2 stops15h 18m

£759

Flights are sorted by cheapest return flights first.

Deals found on 6/6

Showing 1-10 of 12 resultsSorted by cheapest first
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 return 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 £585). Flying from London Heathrow Airport to Boise in August is currently the most expensive (average of £1,129). 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 for a return flight 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 9 June 2026.
Get a feel of what it's like to fly with Alaska Airlines,Virgin Atlantic, andUnited Airlines from London Heathrow Airport to Boise by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,484 reviews
Check prices

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
Alaska Airlines
7.9
Good
12,484 reviews
Alaska Airlines
7.9
Good
12,484 reviews
Check prices

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
Virgin Atlantic
7.5
Good
689 reviews
Alaska Airlines
7.9
Good
12,484 reviews
Check prices

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
United Airlines
7.4
Good
9,796 reviews
Alaska Airlines
7.9
Good
12,484 reviews
Check prices

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
Lufthansa
6.8
Okay
8,049 reviews
Alaska Airlines
7.9
Good
12,484 reviews
Check prices

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Crew

8.5

Overall

7.9

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.

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?

    Located just 3.3 mi from the city center, Boise Air Term. Gowen Fld is the airport most travelers will use when flying to Boise from London Heathrow. Booking flights from London Heathrow to Air Term. Gowen Fld (BOI) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 4 different airlines.

  • How long is the flight from London Heathrow Airport to Boise?

    Airlines like United Airlines fly from London Heathrow Airport to Boise in about 19h 29m. The time it takes to get you to your destination can typically vary by up to . London Heathrow Airport and Boise are separated by a distance of 4829 mi.

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

    Cheapflights users have booked flights from London Heathrow Airport to Boise round-trip from £511. Other airlines that can offer you cheap pricing are United Airlines, from £550, and Virgin Atlantic, from £603. These flights start at 33% lower than the current average price 3 months from now.

  • 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 holiday 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 £585). Flying from London Heathrow Airport to Boise in August is currently the most expensive (average of £1,129). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Heathrow to Boise

Discover the top 4 airlines that operate flights from Heathrow to Boise. 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 858,174 searches. Data last updated 9 June 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£511Average£669FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£550Average£685FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£603Average£840FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Alaska AirlinesCheapest£840Average£1,124FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Boise?

When you search for this flight from Heathrow to Boise, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Boise?

Cheapflights helps you find that perfect flight to Boise from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Heathrow to Boise with no change fees?

Need flexible booking options for your flight to Boise from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Boise become cheaper?

Of course! You can now track prices for flights from Heathrow to Boise and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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