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LHR - BOI

Find cheap flights from London to Boise from $640

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 9/12. 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
0 bags
Mon 6/3
Mon 6/10

Search 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
In the last 7 days travelers have searched 43,693,958 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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Cheap flight deals from London to Boise (LHR-BOI)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip 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 and deals for you by selecting your travel dates.
Choose your dates
8:30 am - 6:05 pmLHR-BOI
16h 35m2 stops
10:35 am - 9:40 amBOI-LHR
16h 05m1 stop
$747United Airlines
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Fri, Sep 20 - Mon, Sep 23
11:25 am - 9:06 pmLHR-BOI
16h 41m2 stops
2:30 pm - 9:40 amBOI-LHR
12h 10m1 stop
$749United Airlines
Find Deal
Fri, Sep 20 - Mon, Sep 23
11:40 am - 10:00 pmLHR-BOI
17h 20m1 stop
7:31 am - 12:45 pmBOI-LHR
22h 14m1 stop
$787Iberia
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Sat, Sep 7 - Sat, Sep 28
3:30 pm - 11:04 pmLHR-BOI
14h 34m1 stop
7:20 am - 12:50 pmBOI-LHR
22h 30m1 stop
$793Finnair
Find Deal
Sat, Jun 8 - Fri, Jun 28
4:55 pm - 10:00 pmLHR-BOI
36h 05m1 stop
1:31 pm - 8:00 amBOI-LHR
35h 29m1 stop
$849Finnair
Find Deal
Fri, Aug 23 - Mon, Sep 2
11:25 am - 9:06 pmLHR-BOI
16h 41m2 stops
2:11 pm - 11:25 amBOI-LHR
14h 14m1 stop
$859United Airlines
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Sat, Sep 7 - Sat, Sep 28
1:10 pm - 10:03 pmLHR-BOI
39h 53m3 stops
11:05 pm - 11:55 amBOI-LHR
29h 50m3 stops
$1,106
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Tue, Jul 16 - Tue, Jul 30
12:30 pm - 12:44 amLHR-BOI
19h 14m2 stops
6:30 am - 7:30 amBOI-LHR
18h 00m2 stops
$1,113American Airlines
Find Deal
Tue, Jul 16 - Tue, Jul 30
1:40 pm - 11:39 pmLHR-BOI
16h 59m2 stops
1:31 pm - 5:50 amBOI-LHR
33h 19m2 stops
$1,152American Airlines
Find Deal
Fri, Aug 23 - Sun, Sep 1
1:10 pm - 9:37 pmLHR-BOI
39h 27m3 stops
8:59 pm - 8:20 pmBOI-LHR
16h 21m2 stops
$1,517
Find Deal
Tue, Jul 16 - Tue, Jul 30

Flights from London to Boise - Travel Insights & Trends

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.

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 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 February, where tickets cost $714 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is $1,105 and $1,083 respectively.

How far in advance should I book a flight from London Heathrow Airport to Boise?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from London Heathrow Airport to Boise, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from London Heathrow Airport to Boise, you should book around 3 days before departure. For the absolute cheapest price, our data suggests you should book 28 days before departure.

Which airlines provide the cheapest flights from London to Boise?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Icelandair ($640) and British Airways ($767). The cheapest round-trip tickets were found on United Airlines ($747) and Iberia ($787).

Good to know

Low season

February

High season

May

Cheapest flight

$640
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from London to Boise

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 round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 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 $640 for a one-way ticket and $747 for a round-trip.

  • Do I need a passport to fly between London and Boise?

    Yes, you’ll need a passport to travel to Boise from London.

  • 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?

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

  • 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 round-trip ticket. You could then fly to Boise with an airline and back to London with another airline. Booking your flights between London and BOI can sometimes prove cheaper using this method.

  • 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.

See more FAQs

Top airline 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.
7.7
Virgin AtlanticOverall score based on 744 reviews
8.3Crew
7.7Entertainment
7.8Boarding
7.1Food
7.4Comfort
Airline reviews

Cabin crew on our flight showed lack of any customer service gruff and acting annoyed if you asked anything and I mean anything Example a man on the seat over dropped his beer on my husbands blanket We asked if we could switch out blankets cabin crew Said. No we don’t have any extras OK well can you take the wet one Cabin crew looked disgusted and annoyed Took it no OK or yes just a growl

6.0 GoodSonia, Apr 2024LAX - LHR
Read more about Virgin Atlantic reviews

Cabin crew on our flight showed lack of any customer service gruff and acting annoyed if you asked anything and I mean anything Example a man on the seat over dropped his beer on my husbands blanket We asked if we could switch out blankets cabin crew Said. No we don’t have any extras OK well can you take the wet one Cabin crew looked disgusted and annoyed Took it no OK or yes just a growl

Quick flight. But cabin crew were very noisy and talking too much, especially when we were seated at the back of the plane trying to sleep through the night .

My ticket was for Premium Economy and all the seats were taken, I was placed in Economy class and I’m looking for a refund.

Unfortunately delayed 2 hrs due to faulty tyre.. which had to be changed, but better safe than sorry.

The delay was an issue. Other than that. Every thing good

Hi vergin Atlantic service was good but the flight ticket agent travel up charge me extra 57 pounds as a airport charges, actually I refuse to pay but they say if I not pay £57 then they say you will not be able to travel from Heathrow to goa ,so for me there was no option and it was just 3 day before my departure so i paid, so please look in to the matter. And I have a receipt of £ 57 as well .thanks

Staff didn’t check cabin well for landing seemed more interested in chatting to each other. Food was poor and differed from pre order.

We were in the last group to be called to the flight - which was 30 minutes late taking off. While we were lucky enough to have been given bulkhead seats (due to a medical condition I’d told them about beforehand) the seats weren’t particularly comfortable. A crying baby for the whole trip made things worse, so the crew managed very well with coping. The final thing I’d say was that there wasn’t enough food served during the flight.

Very good. Glad we had Premium for the flight out.

We flew Upper Class from London to The Turks and Caicos. Check in was amazing. Our ldriver too us directly to a special entrance to terminal 3. It took 10 minutes to check in and clear customs. Amazing! The VA lounge is large and comfortable. Boarding the flight was easy and without a wait. The crew was excellent. But the seats were awful, strange and uncomfortable. Having a comfortable flat bed seat is the reason we pays 1000s extra. The VA 787 uses a reverse herringbone configuration. Look it up. You have your back to the window and are facing the aisle with no privacy. Turning the seat into a bed requires assistance from the crew so not very spontaneous. . The food was ok. A bit tasteless and meager portions. Had to pay for WiFi. I believe VA has other configuration on their dream airbus flights. Lots of stuff about all this on YouTube where you can see what I have been describing. I can not recommend taking VA on a long flight with these seats.

Book cheap flights from London to Boise

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from London to Boise found on KAYAK in the last 72 hours.
9/12Thu
2 stopsIcelandair
16h 14mLHR-BOI
$640
9/12Thu
2 stopsIcelandair
16h 14mLHR-BOI
$667
9/12Thu
1 stopBritish Airways
17h 20mLHR-BOI
$767
7/22Mon
2 stopsIcelandair
31h 30mLHR-BOI
$769
9/12Thu
3 stops
35h 10mLHR-BOI
$839
9/12Thu
3 stops
35h 10mLHR-BOI
$842
5/25Sat
2 stopsIcelandair
31h 35mLHR-BOI
$943
9/12Thu
1 stopBritish Airways
14h 03mLHR-BOI
$1,064
7/22Mon
1 stopKLM
21h 33mLHR-BOI
$1,936
7/21Sun
1 stopAir France
13h 05mLHR-BOI
$1,989

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London - Boise Flights

Departure:

London (LHR)United Kingdom

Destination:

Boise (BOI)United States

Return flight deals:

Boise - London

Cabin classes:

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