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Cheap flights from London Heathrow Airport to Boise from £381

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOI
8 Jul — 15 Jul1
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 3 July 2025.

Round-trip from

£617

One-way from

£381

Popular in

August

Cheapest in

January

Average price

£844
United Airlines
  • United Airlines
  • 7/9-20/9
  • 4 total stops
  • 34h 21m total
  • London to Boise
14/10
  • 14/10
  • 3 total stops
  • 38h 05m total
  • London to Boise
Highest demand for flights based on searches. 16% potential increase in price (£101 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Average for round-trip flights in July 2025

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 3 July 2025.

Sun 7/912:05LHR - BOI
2 stops17h 36mUnited Airlines
Sat 20/907:45BOI - LHR
1 stop16h 40mUnited Airlines
Deal found 2/7£617
Fri 5/914:50LHR - BOI
1 stop13h 25mLufthansa
Sat 20/912:27BOI - LHR
1 stop12h 53mLufthansa
Deal found 2/7£620
Mon 29/909:55LHR - BOI
2 stops19h 27mDelta
Thu 2/1007:30BOI - LHR
1 stop23h 45mDelta
Deal found 30/6£622
Fri 21/1118:00LHR - BOI
2 stops26h 44mMultiple Airlines
Sun 30/1106:15BOI - LHR
2 stops17h 15mMultiple Airlines
Deal found 1/7£629
Sat 6/911:15LHR - BOI
1 stop15h 47mAmerican Airlines
Sun 21/913:07BOI - LHR
2 stops33h 43mAmerican Airlines
Deal found 2/7£650
Wed 27/809:30LHR - BOI
2 stops19h 51mAir Canada
Fri 5/907:45BOI - LHR
2 stops21h 05mAir Canada
Deal found 1/7£678
Fri 29/819:30LHR - BOI
2 stops29h 46mScandinavian Airlines
Sat 13/915:45BOI - LHR
3 stops22h 50mScandinavian Airlines
Deal found 1/7£702

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 3 July 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

Sun 7/9

12:05-22:41

2 stops17h 36m

Boise Air Term. Gowen Fld

Sat 20/9

07:45-07:25

1 stop16h 40m

£617

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 5/9

14:50-21:15

1 stop13h 25m

Boise Air Term. Gowen Fld

Sat 20/9

12:27-08:20

1 stop12h 53m

£620

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Mon 29/9

09:55-22:22

2 stops19h 27m

Boise Air Term. Gowen Fld

Thu 2/10

07:30-14:15

1 stop23h 45m

£622

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 21/11

18:00-13:44

2 stops26h 44m

Boise Air Term. Gowen Fld

Sun 30/11

06:15-06:30

2 stops17h 15m

£629

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Sat 6/9

11:15-20:02

1 stop15h 47m

Boise Air Term. Gowen Fld

Sun 21/9

13:07-05:50

2 stops33h 43m

£650

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Wed 27/8

09:30-21:14

2 stops18h 44m

Boise Air Term. Gowen Fld

Fri 5/9

07:45-11:50

2 stops21h 05m

£677

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Fri 29/8

19:30-18:16

2 stops29h 46m

Boise Air Term. Gowen Fld

Sat 13/9

15:45-21:35

3 stops22h 50m

£702

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Tue 14/10

07:30-14:35

3 stops38h 05m

£381

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Thu 11/9

07:30-17:59

2 stops17h 29m

£567

LondonBoise

LHR - BOI

LHRBOI

London Heathrow

Sat 9/8

09:45-21:43

2 stops18h 58m

£712

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 15 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 27 June 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 3 July 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.

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 3 July 2025.
Get a feel of what it's like to fly with Delta, Finnair, 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.

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

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!
8.0
Very Good

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

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!

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

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!

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

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!

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

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!

Food

7.3

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

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?

    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 6 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 £617. Other airlines that can offer you cheap pricing are Delta, from £622, and Lufthansa, from £639. 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?

    To fly one-way, consider booking your trip with Lufthansa, which is currently one of the cheapest options available, starting at £567. Iberia flights start at £712 while deals on Finnair start at £784 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

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Top 6 airlines flying from Heathrow to Boise

Discover the top 6 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 3 July 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest£508Average£636FlexibilityNo cancel feeOn-time76%
Search Finnair flights
KLMCheapest£521Average£618FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£525Average£624FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£526Average£574FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£592Average£743FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£657Average£841FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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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?

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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.

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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