LON - BOI

£388 Find Cheap Flights from London 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 London to Boise departing on 13/4. 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
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41 299 237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£507
Typical prices: £636-£684
United Airlines
Mon 27/4Sun 3/5
LHR - BOI • 1 stop
Cheapest one-way flight
£388
Multiple Airlines
Mon 13/4
LGW - BOI • 3 stops
Top airlines
Cheapest • from £507 (return)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between London and Boise. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg £603 (return)
Shortest trip • 13h 16m (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 London to Boise (LON-BOI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London 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 London to Boise

Mon, 27 Apr - Sun, 3 May
United Airlines Logo
10:35 - 21:17
LHR
-
BOI
17h 42m
1 stop
United Airlines Logo
06:23 - 07:25
BOI
-
LHR
18h 02m
1 stop
£507United Airlines
Mon, 20 Apr - Mon, 27 Apr
United Airlines Logo
07:25 - 19:53
LHR
-
BOI
19h 28m
2 stops
United Airlines Logo
10:35 - 10:25
BOI
-
LHR
16h 50m
2 stops
£606United Airlines
Thu, 30 Apr - Thu, 7 May
Multiple Airlines Logo
13:00 - 23:02
LGW
-
BOI
17h 02m
2 stops
Multiple Airlines Logo
14:57 - 14:40
BOI
-
LGW
16h 43m
2 stops
£617Multiple Airlines
Tue, 1 Sep - Tue, 15 Sep
Multiple Airlines Logo
10:20 - 22:47
LGW
-
BOI
19h 27m
2 stops
Multiple Airlines Logo
13:00 - 14:40
BOI
-
LGW
18h 40m
2 stops
£743Multiple Airlines
Mon, 20 Apr - Mon, 27 Apr
Icelandair Logo
15:40 - 22:57
LGW
-
BOI
38h 17m
2 stops
Icelandair Logo
12:15 - 11:45
BOI
-
LGW
16h 30m
2 stops
£769Icelandair
Mon, 20 Apr - Mon, 27 Apr
Icelandair Logo
15:40 - 22:57
LGW
-
BOI
38h 17m
2 stops
Icelandair Logo
16:38 - 14:40
BOI
-
LGW
15h 02m
2 stops
£776Icelandair
Mon, 31 Aug - Tue, 15 Sep
Delta Logo
08:25 - 15:38
LCY
-
BOI
38h 13m
2 stops
Delta Logo
06:00 - 09:30
BOI
-
LCY
20h 30m
2 stops
£818Delta
Mon, 31 Aug - Wed, 16 Sep
Delta Logo
08:25 - 15:38
LCY
-
BOI
38h 13m
2 stops
Delta Logo
06:00 - 16:40
BOI
-
LCY
27h 40m
2 stops
£826Delta
Mon, 20 Apr - Mon, 27 Apr
Lufthansa Logo
09:15 - 21:22
LCY
-
BOI
19h 07m
2 stops
Lufthansa Logo
08:20 - 08:40
BOI
-
LCY
17h 20m
2 stops
£939Lufthansa
Mon, 20 Apr - Mon, 27 Apr
Lufthansa Logo
09:15 - 21:22
LCY
-
BOI
19h 07m
2 stops
Lufthansa Logo
08:20 - 08:40
BOI
-
LCY
17h 20m
2 stops
£940Lufthansa
Booking Insights

KAYAK’s insights & trends for London to Boise flights

Get data-powered insights and trends into flights from London 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 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 to Boise departing in April.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London 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 to Boise is January, where tickets cost £567 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £1,168 and £891 respectively.

Good to know - Cheap tickets from London to Boise

Low seasonJanuary
Best time to beat the crowds (22% less expensive on average)
Most popular time to fly (23% more expensive on average)

When to book flights from London to Boise

Are your dates flexible? Find out the best times to travel from London 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 flights from London to Boise

  • What is the cheapest flight from London to Boise?

    In the last 3 days, the lowest price for a flight from London to Boise was £388 for a one-way ticket and £507 for a return.

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

    On your way to Boise, you’ll fly out from one of these London airports: London City or London Heathrow. You’ll be landing at Boise Air Term. Gowen Fld.

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

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

  • Which airline alliances offer flights from London to Boise?

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

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

    The two airlines most popular with KAYAK users for flights from London to Boise are KLM and Virgin Atlantic. With an average price for the route of £708 and an overall rating of 7.8, KLM is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of £770 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from London 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 to Boise.

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

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

  • What is the Hacker Fare option on flights from London 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines flying from London 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 London 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.
7.8
KLMOverall score based on 1473 reviews
7.3Food
7.6Comfort
7.8Boarding
8.4Crew
7.1Entertainment
Airline reviews

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

2.0 MediocreNewton, Mar 2026
IAD - AMS
Read more KLM reviews

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

Empty seats next to me - wish it had been for a longer flight!!

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Flight was on time, staff are friendly and helpful onboard.

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

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

Great crew - old style upper class seats on the older fleet now feels dated

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.

Terrible experience! delay 2 time and say i dont have ticket

Both my flight where delayed Had 25min to make it to my transfer flight

Would've been great if Lufthansa union cockpit pilots didn't strike for 2 days and caused a chaos to my returning plans to USA, and then after rebooking a flight 2 days later tge plane departed 35 min later. So I did not have a good experience.

Everything was on time and service on the flight was great!

The boarding in Buenos Aires (at the on ramp) was not great. They had to check every carry on. Not a United problem but was a Buenos Aires problem.

Staff and aircraft were good. However, weather in Houston lee to a ground stop. We were looking at circling behind three other planes until the stop was lifted. Pilot said we didn’t have enough fuel for that. So we flew on to New Orleans as the closest port with immigration and customs staff. Landed there and sat in the plane for two hours plus while staff was sorted. Turned away by ICE. Waited for pilots to be switched out, but after they were approved by ICE. Then had to wait to get a runway because so many planes were ahead of us. Finally took off and flew back to Houston. We all missed our connecting flights because it took too long. Hotel voucher from United was only a link to booking site. Total BS. Finally got a flight out the next day after a night without sleep because all the Houston hotels were booked by rodeo and spring break crowds.

Waiting area on top of stairs before Boarding the bus wasn’t great. Took a long time to load the bus to gate.

The real reason why the flying experience with Icelandair ---was mediocre was because of not being able to enter DC airspace yesterday evening. This obviously was out of your control and do realize this is a safety issue. I did notice---that everything was being done to get us to Washington Dulles and we did arrive at Dulles SAFELY with just a 4 hour delay. Thank you!

Iceland Air severely damaged a checked bag. Additionally, the gate agent caused issues for many passengers who had standard-sized onboard bags that would have passed inspection by any other airline.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

How about changing the personal out to more friendly human beings? This team was pretty arrogant. No fun!!

Everything could have been better. What needed to be wrong with United went wrong

Excellent service. The crew goes above their way to make the customer comfortable.

It was good. The seats in economy weren’t bad

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Excellent service; they helped me reschedule so I can fly in an earlier flight

Wonderful staff. The boarding process can be improved a little better by adequate prior communication but all in all they did fine. However the boarding gate was quite unfreindly to elderly and who needs help with sevral stairs.

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.

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Very good. Comfortable and I felt well taken care of from start to finish

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

Information on your arrival and departure airports