LHR - BOI

£413 Find Cheap Flights from London Heathrow Airport to Boise – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Boise departing on 8/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£567
Typical prices: £634-£766
Scandinavian Airlines
Fri 11/9Sat 26/9
LHR - BOI • 2 stops
Cheapest one-way flight
£413
Multiple Airlines
Tue 8/9
LHR - BOI • 3 stops
Top airlines
Cheapest • from £567 (return)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Heathrow and Boise. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg £711 (return)
Shortest trip • 13h 52m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 22% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Boise!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Heathrow to Boise (LHR-BOI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Boise that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Boise

Fri, 11 Sep - Sat, 26 Sep
Scandinavian Airlines Logo
06:40 - 22:34
LHR
-
BOI
22h 54m
2 stops
Scandinavian Airlines Logo
10:34 - 17:40
BOI
-
LHR
24h 06m
2 stops
£567Scandinavian Airlines
Fri, 11 Sep - Fri, 18 Sep
Scandinavian Airlines Logo
06:40 - 18:40
LHR
-
BOI
19h 00m
2 stops
Scandinavian Airlines Logo
16:00 - 16:00
BOI
-
LHR
41h 00m
2 stops
£571Scandinavian Airlines
Fri, 4 Sep - Fri, 11 Sep
United Airlines Logo
10:35 - 21:24
LHR
-
BOI
17h 49m
1 stop
United Airlines Logo
08:23 - 09:00
BOI
-
LHR
17h 37m
1 stop
£606United Airlines
Tue, 27 Oct - Tue, 10 Nov
United Airlines Logo
11:05 - 22:51
LHR
-
BOI
41h 46m
2 stops
United Airlines Logo
12:00 - 05:55
BOI
-
LHR
34h 55m
2 stops
£674United Airlines
Tue, 6 Oct - Tue, 13 Oct
Lufthansa Logo
11:05 - 22:58
LHR
-
BOI
18h 53m
1 stop
Lufthansa Logo
14:44 - 12:25
BOI
-
LHR
14h 41m
1 stop
£735Lufthansa
Thu, 26 Nov - Wed, 13 Jan
Lufthansa Logo
11:35 - 21:30
LHR
-
BOI
16h 55m
1 stop
Lufthansa Logo
14:43 - 09:40
BOI
-
LHR
11h 57m
1 stop
£756Lufthansa
Tue, 27 Oct - Tue, 10 Nov
Alaska Airlines Logo
14:45 - 22:06
LHR
-
BOI
13h 21m
1 stop
Alaska Airlines Logo
16:21 - 12:20
BOI
-
LHR
12h 59m
1 stop
£795Alaska Airlines
Mon, 23 Nov - Tue, 12 Jan
Alaska Airlines Logo
14:45 - 23:59
LHR
-
BOI
16h 14m
1 stop
Alaska Airlines Logo
16:00 - 12:20
BOI
-
LHR
13h 20m
1 stop
£833Alaska Airlines
Thu, 20 Aug - Mon, 31 Aug
Virgin Atlantic Logo
11:40 - 18:48
LHR
-
BOI
14h 08m
1 stop
Virgin Atlantic Logo
12:23 - 12:10
BOI
-
LHR
16h 47m
1 stop
£1,053Virgin Atlantic
Mon, 26 Oct - Thu, 29 Oct
Virgin Atlantic Logo
08:55 - 23:04
LHR
-
BOI
20h 09m
2 stops
Virgin Atlantic Logo
12:08 - 10:40
BOI
-
LHR
16h 32m
1 stop
£1,588Virgin Atlantic
Booking Insights

KAYAK’s insights & trends for Heathrow to Boise flights

Get data-powered insights and trends into flights from Heathrow to Boise to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from London Heathrow Airport to Boise?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to Boise departing in September.

Flight prices are below average for this route right now.

Flights to Boise from London Heathrow Airport usually cost between £1,010 and £1,183 in September.
The lowest price found in the past 5 days was £567 on Scandinavian Airlines (11 Sept–26 Sept).

What is the cheapest month to fly from London Heathrow Airport to Boise?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Boise, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Boise is November, where tickets cost £605 (return) on average. On the other hand, the most expensive months are August and December, where the average cost of round-trip tickets is £1,146 and £972 respectively.

Good to know - Cheap tickets from London Heathrow Airport to Boise

Low season

January

Cheapest flight

£413
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly (5% more expensive on average)
Flight from London Heathrow Airport to Boise

When to book flights from Heathrow to Boise

Are your dates flexible? Find out the best times to travel from Heathrow to Boise based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Heathrow Airport to Boise flights

  • What is the cheapest flight from London Heathrow Airport to Boise?

    In the last 5 days, the lowest price for a flight from London Heathrow Airport to Boise was £413 for a one-way ticket and £567 for a return.

  • Which airports will I be using when flying from London Heathrow Airport to Boise?

    When flying out of London Heathrow Airport you will be using London Heathrow. You will be landing at Boise, also known as Boise Air Term. Gowen Fld.

  • Which aircraft models fly most regularly from London Heathrow Airport to Boise?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London Heathrow Airport to Boise?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between London Heathrow Airport and Boise, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from London to Boise, Alaska Airlines or Virgin Atlantic?

    The two airlines most popular with KAYAK users for flights from London to Boise are Alaska Airlines and Virgin Atlantic. With an average price for the route of £957 and an overall rating of 7.9, Alaska Airlines is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of £842 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Boise?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Boise.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Boise?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boise from London Heathrow Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Boise?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Boise with an airline and back to London Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Boise?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Boise from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines flying from Heathrow to Boise

 
See real verified KAYAK customer reviews for airlines flying from London to Boise. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Boise? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12731 reviews
8.1Boarding
8.5Crew
7.8Comfort
7.0Food
7.0Entertainment
Airline reviews

The seats are too small/crowded. It is frustrating to be forced to sit with someone who is overweight as they crown the other seat. Nothing against the person…just the airline companies who continue(over decades!)to reduce seat sizes. Americans are fat. Those of us who are not are tired of being compromised by the airline companies who don’t faces that fact and make adjustments. Maybe have “overweight seats”? Maybe give us a discount for being forced into an uncomfortable flight due to others overweightness? Please, make adjustments…be accountable. Thanks!

6.0 GoodAnonymous, May 2026
PDX - BOI
Read more Alaska Airlines reviews

The seats are too small/crowded. It is frustrating to be forced to sit with someone who is overweight as they crown the other seat. Nothing against the person…just the airline companies who continue(over decades!)to reduce seat sizes. Americans are fat. Those of us who are not are tired of being compromised by the airline companies who don’t faces that fact and make adjustments. Maybe have “overweight seats”? Maybe give us a discount for being forced into an uncomfortable flight due to others overweightness? Please, make adjustments…be accountable. Thanks!

No outlets, plugs, way to charge the phone or service and no food on one leg o the trip, but other than that, great. Loved WIFI, the flight, the crew, the pilots, the schedule, etc. Great job. My new favorite airline!

Wonderful as always! Pleasant staff, smooth ride, and timely departure.

Flight was scheduled to leave at 6a and delayed for 5 hours due to “mechanical” issues. Everyone else on the flight received an email voucher for $24 of food for the delay, except for our group. Also the carry on luggage bins were full and the crew requested that everyone to pass their carry ons back up to the front while everyone was still standing. They gave no other direction and kept rushing the process. After all bags were sent up, they then asked for seat #s to go with each bag… They should have probably had everyone get to their sits and then pass the bags up in a controlled process.

From Las Vegas to Boise all went well. However, our flight was delayed in Boise and I missed my connecting flight from Seattle to Pasco. Moreover, the last flight to Pasco was full and I was booked on the 11:30 flight Sunday and given a hotel accommodation. However, I was scheduled to deliver the Sunday morning service at my church and needed to arrive no later than 10:00. Therefore, I booked a Delta flight scheduled to arrive in Pasco at 23:09. My piece of luggage checked in Las Vegas arrived in Pasco earlier today. I waited at the airport for over an hour last night to speak with an Alaska agent to no avail. I went back after church this morning in search of my piece of luggage and it could not be located. After waiting for 40 minutes to speak to the agent authorized to take my claim, he announced that he was closing the counter to assist on the flight line but not before providing me with a telephone number that would help me with filing my claim. Before I was able to make the call (due to other factors) I received a call from Alaska agent informing me that my luggage had just arrived and I am now waiting for it to be delivered. I deliberately took the more complicated route home to ensure that I would be home in plenty of time to prepare for myself for the Sunday service and accommodate my relatives’ needs. I believe the airport is undermanned given the number of flights coming in and going out. It was fiasco last night with three flights waiting for luggage and another flight landing within minutes. Today’s problems stemmed from a lack of cross training and a serious amount of cargo/baggage going out and too few people scheduled to cover.

The seats were not very comfortable and there were no TV screens. Boarding was pretty fast because there were so few people on such a small plane and I appreciated that they still gave us our snack and drinks, however I really wish they would come up with a good gluten-free snack.

Flight crew and flight were good. But it departed two hours late.

Pretzels are always a disappointment. Cheezits, Sun Chips, trail mix, anything else would be nice.

They were friendly, efficient and got our bags to us so fast at the end of the flight.

In GEG I arrived at 0930 for a 1600 flight. Alaska had a rule that you could not check your bags until 4 hours before flight time. I was forced to sit in a chilly lobby for hours. I had access to a bathroom, but could not go into terminal for food and drink. Boarding and flight OK

Lounge was top notch h with great variety of food and drinks. Cabin crew were great. Smooth flight.

My seat 3G did not go down fully and the buttons were not working properly

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Security area in terminal 3 needs to be made much nicer. Less claustrophobic and use of glass and big ceilings wouldhelp

accomodating check in staff, friendly flight crew ( a crew member was speaking tactlessly and was overfamiliar with passengers

Seats need to be updated. Allowance needs to be made for dinner service at an alternative time

If I could fly Virgin Atlantic airlines to every place, I need to go, I would. Leaving Heathrow through the special virgin air entrance, security is completely white glove service. I love this airline. From ticketing agents to flight staff everyone tries to make it a wonderful & happy flight experience. I wish other airlines copied the positive culture of Virgin Airlines.

Premium was very comfortable. Food was delicious. I had specific diet requirement and Virgin Atlantic ensured it was provided. Onboard crew was very friendly and caring. Extremely smooth journey. I wonder how upper class experience would be. Perhaps one day, I will try upper class.

On arrival to JFK it to 3.5hrs to clear immigration, as only 3 booths open. Almost missed connection

Very friendly and helpful staff on board and United was excellent when I missed my onward flight due to the delay in London. Very well organised meant much less stress

First time flying with UA and it was a great experience. Thank you

Staff on board was excellent. Positive upbeat helpful- like it used to be.

United has come a long way, it’s been a fantastic experience traveling with them.

The flight attendants were very rude, beyond comprehension. I took a business class from London to SFO for the first time on United. When I asked for a second piece of bread during dinner, the serving attendant threw a 3rd bread on my plate and said, “here. You can have this one too”! I couldn’t believe the rudeness of the attendant. Most all attendants were very rude, unhelpful, sing the food was absolutely disgusting. Never fly United internationally in business class. My flight back to SFO was a nightmare!!

Our experience on United Airlines was extremely poor. The plane was extremely cold throughout our entire flight- which multiple people complained about- and we had to wait 2 hours to get a blanket which was too thin and barely helped warm us up. As well as this, none of the entertainment features were working so we had to sit through a roughly 10 hour flight with nothing to keep our attention, including the actual flight path screen. It was an extremely disappointing experience and I would hope that this gets fixed if we ever choose United Airlines again.

Cabin crew was very friendly, requests were satisfied promptly and cheerfully, and the cabin was reasonably clean when I boarded. The United lounges at Newark and Heathrow are always well-run and comfortable, especially Newark. I look forward to the new lounge that will be part of the rebuild of Terminal 2 at Heathrow.

The senior flight attendants were amazing. Totally different vibe from other carriers. Easy 10 hour flight in Business Class. Great food. Good humor as well.

I was lucky to sit in a seat with legroom in economy . The airplane felt like it was 100 years old, seats were very basic, barely reclined. Food was alright , staff was ok but not the friendliest. But all in all ok trip, perfectly on time

Your food is AWEFUL! For Premium Economy this was the WORST FOOD EVER - salad and tomatoes were all spoiled, "chicken" was awful and burnt. This is the WORST FOOD of ANY AIRLINE!!!!!!!!!!!!!!! horrible

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

Not what I expected for the last leg of a $5100 business class experience. Boarding was a nightmare. The flight was delayed and I had to keep checking my email to ensure I was at the right gate since the airline or the terminal had no clue until 15 mins prior to boarding. Food was gross, limited drink options.

Flights scheduled with impossible connections - Lufthansa apparently believes it takes 7mins to change terminals, go through passport control, re-clear security and walk 1.8kms…..and everything will work perfectly (which it never does at Frankfurt). No staff on hand to assist with transfers on delayed flights. No transfer guidance provided by app. No compensation offered for 6hr delay to connecting flight.

Crew were friendly and very helpful Plane was clean and the legroom is standard. Overall a good flight, no complaints.

Other than problems with checking in and uploading passport info everything was great. It would be nice to be able to manually input passport info. Often while traveling the bandwidth has problems uploading pictures

Boarding was a zoo. London ground crew was useless. Poor communication regarding where to line up. We were group 2, and everyone was jammed in together. Ground crew didn’t seem to care.

Horrible flight attendant in back of economy that screamed at me, have already reported to United. Horrible food - for Gluten free, why would you assume the person is vegetarian? I was served some kind of horrible curry bean paste and multiple cold rolls and soggy vegetables with no seasoning... um no!

Knowing that there was weather in other areas of the world, united airlines should have planned better than it did. The flight was 5 hours late. United has no regard for its customers

Flight itself fine, big problem with KAYAK. Revised e-ticket sent in July stated departure LHR 10:55, arrival SFO 13:45. (a believable local arrival time given flight length and time difference). When we got to LHR there was no 10:55 flight to SFO and were advised that in fact flight LH2473 was arriving in MUNICH at 13:45pm, and that we would need to get a connecting flight arriving in SFO at 18:55 local time - over 5 hours later than expected. 1) you the booking agent made an error on the revised e-ticket you sent, omitting the Munich stopover and incorrect SFO arrival time. 2) I booked a DIRECT flight and 3) we had to cancel plans this end as a result, even though the team at LHR did a great job moving us to a later direct flight getting us in 2 hours earlier than the flight from munich would have.

Everything you need to know for your flight from Heathrow to Boise

Information on your arrival and departure airports