LHR - BOI

£450 Find Cheap Flights from London Heathrow Airport to Boise

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 5/10. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Boise

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Boise, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Boise, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£622
Typical prices: £599-£546
United Airlines
Wed 4/11Sun 8/11
LHR - BOI • 2 stops
Cheapest one-way flight
£450
Multiple Airlines
Mon 5/10
LHR - BOI • 3 stops
Top airlines
Cheapest • from £622 (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 £705 (return)
Shortest trip • 13h 49m (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

Wed, 4 Nov - Sun, 8 Nov
United Airlines Logo
07:40 - 23:59
LHR
-
BOI
23h 19m
2 stops
United Airlines Logo
10:39 - 07:30
BOI
-
LHR
37h 51m
2 stops
£622United Airlines
Wed, 4 Nov - Sun, 8 Nov
United Airlines Logo
07:40 - 23:59
LHR
-
BOI
23h 19m
2 stops
United Airlines Logo
10:39 - 07:30
BOI
-
LHR
37h 51m
2 stops
£624United Airlines
Sun, 20 Sep - Wed, 7 Oct
United Airlines Logo
16:40 - 11:04
LHR
-
BOI
25h 24m
2 stops
United Airlines Logo
10:30 - 09:40
BOI
-
LHR
16h 10m
1 stop
£654United Airlines
Wed, 4 Nov - Wed, 11 Nov
United Airlines Logo
09:00 - 21:15
LHR
-
BOI
19h 15m
2 stops
United Airlines Logo
07:00 - 06:20
BOI
-
LHR
16h 20m
2 stops
£654United Airlines
Mon, 21 Sep - Mon, 5 Oct
United Airlines Logo
07:30 - 17:58
LHR
-
BOI
17h 28m
2 stops
United Airlines Logo
12:26 - 10:40
BOI
-
LHR
15h 14m
2 stops
£660United Airlines
Wed, 4 Nov - Wed, 11 Nov
United Airlines Logo
10:25 - 23:06
LHR
-
BOI
19h 41m
1 stop
United Airlines Logo
14:43 - 09:40
BOI
-
LHR
11h 57m
1 stop
£682United Airlines
Mon, 21 Sep - Mon, 5 Oct
United Airlines Logo
14:50 - 21:37
LHR
-
BOI
13h 47m
1 stop
United Airlines Logo
08:08 - 08:30
BOI
-
LHR
17h 22m
1 stop
£683United Airlines
Thu, 12 Nov - Mon, 16 Nov
United Airlines Logo
09:30 - 21:15
LHR
-
BOI
18h 45m
2 stops
United Airlines Logo
07:00 - 07:55
BOI
-
LHR
17h 55m
2 stops
£691United Airlines
Wed, 4 Nov - Sun, 8 Nov
United Airlines Logo
13:35 - 23:06
LHR
-
BOI
16h 31m
1 stop
United Airlines Logo
12:29 - 07:55
BOI
-
LHR
12h 26m
1 stop
£712United Airlines
Wed, 4 Nov - Sun, 8 Nov
United Airlines Logo
13:35 - 23:06
LHR
-
BOI
16h 31m
1 stop
United Airlines Logo
12:29 - 07:55
BOI
-
LHR
12h 26m
1 stop
£713United Airlines
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 November.

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 £581 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is £1,126 and £834 respectively.

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

Low seasonJanuary
Cheapest flight£450
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly (8% 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 3 days, the lowest price for a flight from London Heathrow Airport to Boise was £450 for a one-way ticket and £622 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 £1,117 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 £811 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 12528 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.0Entertainment
7.1Food
Airline reviews

Airport security lines in Seattle were awful. The only staff that was pleasant and made the trip more enjoyable was the young woman at the gate in Seattle. She was so pleasant and helpful. Flight attendant on the plane seemed like she would rather be anywhere but on that plane.

8.0 ExcellentAnonymous, Jun 2026
SEA - ICT
Read more Alaska Airlines reviews

Airport security lines in Seattle were awful. The only staff that was pleasant and made the trip more enjoyable was the young woman at the gate in Seattle. She was so pleasant and helpful. Flight attendant on the plane seemed like she would rather be anywhere but on that plane.

Never had so many staff members be rude and disrespectful. I had a staff member sarcastically call me “girly” after making me wait 20 minutes to be seen by her. I was able to print my luggage tag and she told me I was too late to check luggage I said the system obviously disagrees. And you had me wait way too long while you asked every single passenger ahead of me about their Disney vacations. She wasted so much time to then say “girly your bag won’t make it on the plane” I’m not her girly I’m a full grown adult. She needs to learn a hell of a lot of respect

My flight was several times rescheduled and then finally canceled.

The agents were super helpful. I was traveling with my mother inlaw who needed whell chair assisstance. The help and accomodation from the checkin crew, to the boarding crew and inflight crew was excellent.

People were friendly. Flight was a little delayed. Maybe I missed the reason for it. Overall a nice experience.

Completely full flight. Boarding was smooth, but people didn’t listen about use of overhead bins which is typical. We pre-purchased a snack which was tasty. Drinks were good and plentiful. Flight left late because previous flight was delayed.

The flight itself was great. But we had to wait over an hour to deplane so I missed my train. Not the crews fault. They were wonderful!

Flying into PAE was so easy because it’s baggage claim is quick and accesible. I had a car rental and the counter is inside the baggage claim area, very convenient.

Crews were friendly enough. To help the airline I checked my carry on baggage. Typical "gonna be a full flight we need 19 carry on bags to be checked to help out". So I helped out only to have to wait 30+ mins for my luggage and risked not getting to my car rental on time. The return flight was delayed. Kept hearing employees say something about "they didn't have any power" which is kind of concerning. The air flow and air conditioning was insufficient. It was warm and stuffy during the flight. Plus no free wi-fi......Booooooo!

Great trip. No complaints. Impressed with the crew’s response to various challenges pre-boarding.

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

Seating and zone. The minor I went with didn’t even seat close to me

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

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

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

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The flight got delayed. They forgot to bring the drinks when I asked for it. The toilet is messy.

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Service was professional and quick. Premium economy seat was comfortable given the class

I'm a United 1K member and have ben for 10 years. The gate agent had no control over the boarding process and had us passengers queued for hours as delays were announced. On the plane, the overhead air nozzle was broken so col over was powering through on me and the passenger next to me. Not a great experience for a million miler on United. Feel free to contact me. Josh Smigel - DM426089

The food on this flight was better than what we had getting to Rome. The flight was comfortable and the staff was great. One of the staff members was a stickler about the blankets in the aisle, which I get, but still. Overall, great flight and will fly with them again!

Our screen kept turning off ...3 times...had to get crew attention to turn it on again

The legroom was lacking and the entertainment system lacked adequate selection of older films. Modern films are generally not very good.

Perfect airline, super friendly, great service, tasty food. Would fly again.

The flight attendants were wonderful - one man put my carry on in the bin for me. Very attentive service. Loved the blanket and pillow waiting for me in economy. Food was excellent which is a surprise given the reputation of any airline food. Wine was fine with the meals. Delighted with the new movies - flight went by very quickly. I would definitely fly Lufthansa again.

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

Service was excellent. Flight was only about half full, which meant we had tons of room to stretch out. Boarding area was nice and well organized, flight attendants were super friendly and attentive and we loved the 3 snacks!

My flight was cancelled, but it was not Kayak's fault. Kayak did require me to pay for the ticket twice to two different venders who paid Lufthansa. Kayak/Lufthansa owes me for the first booking I made first was fraudulent on the part of the subcontracting ticket seller. There will be litigation over this issue under the current passenger protection laws.

flight was half full, plenty of empty seats, was able to lie down across 4 seats, food was good, arrived on time

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

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

Information on your arrival and departure airports