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Cheap flights from London Heathrow Airport to Boise from £368

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 14/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
31 Mar — 7 Apr1
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 26 March 2025.

Round-trip from

£478

One-way from

£368

Popular in

August

Cheapest in

January

Average price

£666
United Airlines
  • United Airlines
  • 25/4-2/5
  • 3 total stops
  • 47h 39m total
  • London to Boise
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14/4
  • 14/4
  • 3 total stops
  • 47h 12m total
  • London to Boise
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Highest demand for flights based on searches. 17% potential increase in price (£114 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).
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Average for round-trip flights in March 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 26 March 2025.

Fri 25/416:15LHR - BOI
2 stops27h 29mUnited Airlines
Fri 2/506:30BOI - LHR
1 stop20h 10mUnited Airlines
Deal found 25/3£478
Fri 25/413:05LHR - BOI
1 stop16h 23mKLM
Fri 2/516:40BOI - LHR
1 stop14h 35mKLM
Deal found 25/3£620
Fri 25/406:30LHR - BOI
2 stops21h 52mLufthansa
Fri 2/510:20BOI - LHR
2 stops18h 25mLufthansa
Deal found 25/3£625
Thu 26/621:25LHR - BOI
2 stops32h 21mIcelandair
Mon 7/720:24BOI - LHR
2 stops32h 31mIcelandair
Deal found 25/3£722
Mon 18/810:20LHR - BOI
2 stops19h 26mFinnair
Thu 28/813:41BOI - LHR
1 stop14h 09mFinnair
Deal found 25/3£899
Fri 9/506:00LHR - BOI
3 stops34h 54mMultiple Airlines
Fri 16/510:20BOI - LHR
3 stops26h 00mMultiple Airlines
Deal found 25/3£1,032
Wed 18/607:05LHR - BOI
3 stops20h 17mScandinavian Airlines
Mon 23/614:00BOI - LHR
2 stops20h 40mScandinavian Airlines
Deal found 25/3£1,095
Sat 5/409:55LHR - BOI
1 stop17h 55mVirgin Atlantic
Sat 19/410:40BOI - LHR
1 stop17h 40mVirgin Atlantic
Deal found 25/3£1,099
Sat 5/409:55LHR - BOI
1 stop17h 55mDelta
Sat 19/405:30BOI - LHR
2 stops18h 15mDelta
Deal found 25/3£1,134
Sat 5/410:55LHR - BOI
2 stops18h 06mAir France
Sat 19/416:40BOI - LHR
2 stops16h 55mAir France
Deal found 25/3£1,500
Thu 10/710:30LHR - BOI
1 stop19h 45mAmerican Airlines
Thu 31/713:17BOI - LHR
1 stop14h 38mAmerican Airlines
Deal found 25/3£4,881

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 26 March 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 25/4

16:15-12:44

2 stops27h 29m

Boise Air Term. Gowen Fld

Fri 2/5

06:30-09:40

1 stop20h 10m

£478

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 25/4

13:05-22:28

1 stop16h 23m

Boise Air Term. Gowen Fld

Fri 2/5

16:40-14:15

1 stop14h 35m

£620

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 25/4

06:30-21:22

2 stops21h 52m

Boise Air Term. Gowen Fld

Fri 2/5

10:20-11:45

2 stops18h 25m

£625

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Thu 26/6

21:25-22:46

2 stops32h 21m

Boise Air Term. Gowen Fld

Mon 7/7

20:24-11:55

2 stops32h 31m

£722

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 18/8

10:20-22:46

2 stops19h 26m

Boise Air Term. Gowen Fld

Thu 28/8

13:41-10:50

1 stop14h 09m

£899

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 9/5

06:00-09:54

3 stops34h 54m

Boise Air Term. Gowen Fld

Fri 16/5

10:20-19:20

3 stops26h 00m

£1,032

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 18/6

07:05-20:22

3 stops20h 17m

Boise Air Term. Gowen Fld

Mon 23/6

14:00-17:40

2 stops20h 40m

£1,095

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Sat 5/4

09:55-20:50

1 stop17h 55m

Boise Air Term. Gowen Fld

Sat 19/4

10:40-11:20

1 stop17h 40m

£1,099

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Sat 5/4

09:55-20:50

1 stop17h 55m

Boise Air Term. Gowen Fld

Sat 19/4

05:30-06:45

2 stops18h 15m

£1,134

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Sat 5/4

10:55-22:01

2 stops18h 06m

Boise Air Term. Gowen Fld

Sat 19/4

16:40-16:35

2 stops16h 55m

£1,500

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 18 results
1
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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 21 March 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 26 March 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 26 March 2025.
Delta
8.0
Very Good
7,891 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

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
7,891 reviews
Delta
8.0
Very Good
7,891 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

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
Air New Zealand
7.9
Good
455 reviews
Delta
8.0
Very Good
7,891 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

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
KLM
7.8
Good
1,319 reviews
Delta
8.0
Very Good
7,891 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

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
1,266 reviews
Delta
8.0
Very Good
7,891 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

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
Air France
7.4
Good
1,423 reviews
Delta
8.0
Very Good
7,891 reviews
Check prices

Comfort

8.0

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

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 £478. Other airlines that can offer you cheap pricing are KLM, from £620, and Lufthansa, from £625. These flights start at 33% 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 Air New Zealand, which is currently one of the cheapest options available, starting at £603. Lufthansa flights start at £630 while deals on Iberia start at £638 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 26 March 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£508Average£672FlexibilityNo cancel feeOn-time76%
Search Finnair flights
United AirlinesCheapest£549Average£651FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
KLMCheapest£551Average£593FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£556Average£621FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£599Average£767FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£686Average£839FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£694Average£889FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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

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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.

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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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