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Cheap flights from London Heathrow Airport to Boise from £515

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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
5 May — 12 May1
1 adult

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 Wednesday or Tuesday and return on a Monday

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 30 April 2025.

Round-trip from

£578

One-way from

£515

Popular in

August

Cheapest in

January

Average price

£650
Lufthansa
  • Lufthansa
  • 26/9-6/10
  • 4 total stops
  • 45h 26m total
  • London to Boise
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WestJet
  • WestJet
  • 11/9
  • 2 total stops
  • 16h 49m total
  • London to Boise
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£107 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
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Average for round-trip flights in April 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 30 April 2025.

Fri 26/917:40LHR - BOI
2 stops26h 55mLufthansa
Mon 6/1019:09BOI - LHR
2 stops18h 31mLufthansa
Deal found 29/4£578
Mon 9/607:25LHR - BOI
2 stops17h 36mUnited Airlines
Mon 30/607:00BOI - LHR
2 stops17h 15mUnited Airlines
Deal found 28/4£667
Wed 18/621:25LHR - BOI
2 stops56h 21mIcelandair
Mon 23/620:46BOI - LHR
2 stops32h 09mIcelandair
Deal found 29/4£722
Fri 13/611:25LHR - BOI
1 stop17h 01mMultiple Airlines
Fri 20/617:43BOI - LHR
1 stop11h 37mMultiple Airlines
Deal found 29/4£761
Thu 22/509:50LHR - BOI
1 stop19h 52mBritish Airways
Mon 2/616:01BOI - LHR
1 stop13h 59mBritish Airways
Deal found 29/4£769
Fri 13/606:40LHR - BOI
2 stops19h 26mScandinavian Airlines
Fri 20/614:00BOI - LHR
2 stops16h 35mScandinavian Airlines
Deal found 29/4£782
Thu 22/517:25LHR - BOI
1 stop13h 47mVirgin Atlantic
Mon 2/613:50BOI - LHR
2 stops33h 55mVirgin Atlantic
Deal found 29/4£791
Thu 22/509:55LHR - BOI
2 stops18h 11mDelta
Mon 2/619:18BOI - LHR
2 stops17h 42mDelta
Deal found 29/4£795
Mon 18/810:20LHR - BOI
2 stops19h 26mFinnair
Thu 28/807:00BOI - LHR
1 stop16h 25mFinnair
Deal found 29/4£828
Fri 21/1107:30LHR - BOI
2 stops20h 48mIberia
Sun 30/1107:21BOI - LHR
2 stops21h 54mIberia
Deal found 29/4£852
Thu 10/712:00LHR - BOI
1 stop18h 16mAmerican Airlines
Thu 31/711:44BOI - LHR
1 stop14h 16mAmerican Airlines
Deal found 29/4£4,865

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 30 April 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

Fri 26/9

17:40-13:35

2 stops26h 55m

Boise Air Term. Gowen Fld

Mon 6/10

19:09-20:40

2 stops18h 31m

£578

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 9/6

07:25-18:01

2 stops17h 36m

Boise Air Term. Gowen Fld

Mon 30/6

07:00-07:15

2 stops17h 15m

£667

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 18/6

21:25-22:46

2 stops56h 21m

Boise Air Term. Gowen Fld

Mon 23/6

20:46-11:55

2 stops32h 09m

£722

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 13/6

11:25-21:26

1 stop17h 01m

Boise Air Term. Gowen Fld

Fri 20/6

17:43-12:20

1 stop11h 37m

£761

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Thu 22/5

09:50-22:42

1 stop19h 52m

Boise Air Term. Gowen Fld

Mon 2/6

16:01-13:00

1 stop13h 59m

£769

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 13/6

06:40-19:06

2 stops19h 26m

Boise Air Term. Gowen Fld

Fri 20/6

14:00-13:35

2 stops16h 35m

£782

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Thu 22/5

17:25-00:12

1 stop13h 47m

Boise Air Term. Gowen Fld

Mon 2/6

13:50-06:45

2 stops33h 55m

£791

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Thu 22/5

09:55-21:06

2 stops18h 11m

Boise Air Term. Gowen Fld

Mon 2/6

19:18-20:00

2 stops17h 42m

£795

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 18/8

10:20-22:46

2 stops19h 26m

Boise Air Term. Gowen Fld

Thu 28/8

07:00-06:25

1 stop16h 25m

£828

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Thu 10/7

12:00-23:16

1 stop18h 16m

Boise Air Term. Gowen Fld

Thu 31/7

11:44-09:00

1 stop14h 16m

£4,865

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 14 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 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

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 return flight from Heathrow to Boise. Price data was last updated on 25 April 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Boise, you should look to book at least 23 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 £754). Flying from London Heathrow Airport to Boise in August is currently the most expensive (average of £1,152). 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.

What is the cheapest time of day to fly from LHR to BOI?

Find hourly flight availability from Heathrow to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 April 2025.

It’s typically best to fly out from London Heathrow Airport to Boise at midday. Doing so could potentially save you 23% on the flight price compared to flying in the evening, which is usually more expensive.

Rainfall in Boise by month

Plan your trip to Boise by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boise ranges from 5.0 - 41.0 inches per month. December is typically the wettest month, when rainfall can reach 41.0 mm. August is typically the driest time to visit Boise when rainfall is around 5.0 mm.

Temperature in Boise by month

Plan your trip to Boise by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boise, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 24.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around -1.0 C).

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 30 April 2025.
Delta
8.0
Very Good
7,936 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,936 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,273 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Virgin Atlantic
7.4
Good
642 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Scandinavian Airlines
7.3
Good
1,349 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Boarding

8.2

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 7 different airlines.

  • 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 £578. Other airlines that can offer you cheap pricing are United Airlines, from £667, and Icelandair, from £722. These flights start at 16% 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?

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at £515. Lufthansa flights start at £614 while deals on Scandinavian Airlines start at £1,885 one-way.

  • 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, October is the cheapest month in which you can book a flight from London Heathrow Airport to Boise (average of £754). Flying from London Heathrow Airport to Boise in August is currently the most expensive (average of £1,152). 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

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

Top 7 airlines flying from Heathrow to Boise

Discover the top 7 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 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£490Average£651FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£531Average£630FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£534Average£630FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£538Average£592FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£578Average£733FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£662Average£809FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£670Average£858FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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

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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.

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