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Cheap flights from London Heathrow Airport to Boise from £409

LHR — BOI
9 Nov — 16 Nov1
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

Wed 2/1210:20 -
2 stops19h 38m
Sat 12/1216:10 -
2 stops19h 20m
Deal found 9/10£617
Tue 1/1214:30 -
2 stops51h 38m
Wed 9/1214:48 -
2 stops38h 02m
Deal found 9/10£686
Tue 1/1214:30 -
2 stops55h 20m
Mon 14/1214:48 -
2 stops33h 22m
Deal found 9/10£689
Tue 1/1214:30 -
2 stops38h 00m
Sun 13/1216:24 -
2 stops33h 06m
Deal found 9/10£692
Tue 24/1114:45 -
1 stop16h 14m
Tue 1/1214:05 -
1 stop15h 15m
Deal found 10/10£708
Tue 1/1214:45 -
2 stops29h 24m
Wed 9/1216:10 -
1 stop13h 10m
Deal found 9/10£709
Thu 29/1014:45 -
1 stop25h 11m
Wed 11/1108:20 -
1 stop21h 00m
Deal found 8/10£710
Wed 2/1214:30 -
2 stops27h 38m
Sat 12/1208:00 -
1 stop14h 55m
Deal found 9/10£711
Mon 9/1114:45 -
2 stops26h 24m
Mon 11/106:37 -
1 stop22h 43m
Deal found 9/10£718
Tue 1/1214:45 -
1 stop16h 14m
Thu 10/1216:10 -
1 stop13h 10m
Deal found 9/10£723

Find flight deals from Heathrow to Boise

Round-trip from

£617

One-way from

£409

Popular in

August

Cheapest in

March

Average price

£746
Scandinavian Airlines
  • Scandinavian Airlines
  • 2/12-12/12
  • 4 total stops
  • 38h 58m total
  • London to Boise
Search Deals
1/3-31/12
  • 1/3-31/12
  • 3 total stops
  • 33h 39m total
  • London to Boise
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£62 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London Heathrow Airport to Boise that are best for you.

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Route

Depart

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Price

Cheapest return flight

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Mon 1/3

12:20-15:05

1 stop33h 45m

Boise Air Term. Gowen Fld

Wed 31/12

00:00-08:00

Nonstop0h 00m

£499

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Fri 6/11

20:50-21:33

3 stops31h 43m

Boise Air Term. Gowen Fld

Wed 31/12

00:00-08:00

Nonstop0h 00m

£512

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Wed 6/1

11:10-14:52

3 stops34h 42m

Boise Air Term. Gowen Fld

Wed 31/12

00:00-08:00

Nonstop0h 00m

£534

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Tue 6/4

21:25-23:58

2 stops33h 33m

Boise Air Term. Gowen Fld

Wed 31/12

00:00-08:00

Nonstop0h 00m

£556
Fastest return journey

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Wed 6/1

12:20-18:33

1 stop13h 13m

Boise Air Term. Gowen Fld

Wed 31/12

00:00-08:00

Nonstop0h 00m

£576

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Fri 2/4

21:25-22:20

2 stops31h 55m

Boise Air Term. Gowen Fld

Wed 31/12

00:00-08:00

Nonstop0h 00m

£582

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Mon 9/11

14:45-10:09

2 stops26h 24m

Boise Air Term. Gowen Fld

Mon 11/1

06:37-12:20

1 stop22h 43m

£718

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Sat 21/11

14:45-22:12

1 stop14h 27m

Boise Air Term. Gowen Fld

Sat 28/11

21:59-12:20

1 stop31h 21m

£741

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Sun 22/11

14:45-09:44

1 stop25h 59m

Boise Air Term. Gowen Fld

Sun 29/11

21:59-12:20

1 stop31h 21m

£742

LondonBoise

LHR London Heathrow - BOI Boise Air Term. Gowen Fld

LHRBOI

London Heathrow

Tue 24/11

11:10-22:59

2 stops18h 49m

Boise Air Term. Gowen Fld

Tue 1/12

08:00-07:55

1 stop16h 55m

£752

Flights are sorted by cheapest return flights first.

Deals found on 8/10

Showing 1-10 of 16 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

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Boise

How much does it cost for a return flight from London Heathrow Airport to Boise?

Airfare is below average for this route at the moment.

London Heathrow Airport to Boise flights typically cost between £648 and £875 in December.
The cheapest return price found within the last 5 days was £617 on Scandinavian Airlines (2 Dec–12 Dec).

Reviews of airlines servicing Boise

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
13,045 reviews
Check prices

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Food

7.0

Overall

7.9

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Alaska Airlines
7.9
Good
13,045 reviews
Alaska Airlines
7.9
Good
13,045 reviews
Check prices

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Food

7.0

Overall

7.9

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Virgin Atlantic
7.5
Good
694 reviews
Alaska Airlines
7.9
Good
13,045 reviews
Check prices

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Food

7.0

Overall

7.9

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
United Airlines
7.4
Good
10,334 reviews
Alaska Airlines
7.9
Good
13,045 reviews
Check prices

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Food

7.0

Overall

7.9

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Lufthansa
6.8
Okay
8,276 reviews
Alaska Airlines
7.9
Good
13,045 reviews
Check prices

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Food

7.0

Overall

7.9

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.

Related info for your journey

  • 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 Scandinavian Airlines and Air Canada fly from London Heathrow Airport to Boise in about 19h 38m. The time it takes to get you to your destination can typically vary by up to 32h. London Heathrow Airport and Boise are separated by a distance of 4829 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 £515. Other airlines that can offer you cheap pricing are United Airlines, from £532, and Alaska Airlines, from £728. These flights start at 39% 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Heathrow to Boise

AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£515Average£781FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£532Average£715FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapest£728Average£884FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Virgin AtlanticCheapest£728Average£833FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

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