$559 Find Cheap Flights from the United Kingdom 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 to Boise departing on 9/15. 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

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 for flights to Boise, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Boise, as well as popular online travel agencies
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Flight Deals

Cheap Flights from the United Kingdom to Boise

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from the United Kingdom 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 round-trip flight deals from the United Kingdom to Boise

Mon, Dec 8 - Tue, Dec 16
United Airlines Logo
7:40 am - 9:59 amLHR-BOI
33h 19m2 stops
United Airlines Logo
6:40 am - 7:25 amBOI-LHR
17h 45m1 stop
$744United Airlines
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Mon, Dec 8 - Tue, Dec 16
United Airlines Logo
7:40 am - 9:59 amLHR-BOI
33h 19m2 stops
United Airlines Logo
6:20 am - 5:55 amBOI-LHR
16h 35m2 stops
$748United Airlines
Find Deal
Sat, Nov 15 - Sat, Dec 6
Lufthansa Logo
6:30 am - 6:09 pmLHR-BOI
18h 39m2 stops
Lufthansa Logo
2:49 pm - 9:40 amBOI-LHR
11h 51m1 stop
$808Lufthansa
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Sat, Nov 15 - Sat, Dec 6
Lufthansa Logo
7:30 am - 6:09 pmLHR-BOI
17h 39m2 stops
Lufthansa Logo
2:49 pm - 2:45 pmBOI-LHR
16h 56m2 stops
$816Lufthansa
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Mon, Oct 6 - Mon, Oct 13
Virgin Atlantic Logo
1:25 pm - 12:08 amLHR-BOI
17h 43m1 stop
Virgin Atlantic Logo
11:12 am - 9:50 amBOI-LHR
15h 38m1 stop
$830Virgin Atlantic
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Mon, Oct 6 - Mon, Oct 13
Virgin Atlantic Logo
1:25 pm - 12:08 amLHR-BOI
17h 43m1 stop
Virgin Atlantic Logo
11:12 am - 11:25 amBOI-LHR
17h 13m2 stops
$835Virgin Atlantic
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Mon, Oct 6 - Mon, Oct 13
Delta Logo
11:30 am - 12:08 amLHR-BOI
19h 38m2 stops
Delta Logo
3:00 pm - 1:10 pmBOI-LHR
15h 10m1 stop
$843Delta
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Sun, Sep 28 - Sun, Oct 5
Air Canada Logo
9:30 am - 9:42 amLHR-BOI
31h 12m2 stops
Air Canada Logo
8:20 am - 6:30 amBOI-LHR
15h 10m2 stops
$866Air Canada
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Fri, Sep 26 - Mon, Oct 6
Delta Logo
6:30 am - 3:40 pmLHR-BOI
16h 10m2 stops
Delta Logo
11:12 am - 8:55 amBOI-LHR
14h 43m2 stops
$878Delta
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Fri, Nov 21 - Sun, Nov 30
Air Canada Logo
6:00 pm - 11:39 amLHR-BOI
48h 39m2 stops
Air Canada Logo
6:20 am - 6:30 amBOI-LHR
17h 10m2 stops
$891Air Canada
Find Deal
Booking Insights

KAYAK's insights & trends for flights to Boise

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

What is the cheapest month to fly to Boise?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights 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 to Boise is November, where tickets cost $795 on average for return flights. On the other hand, the most expensive months are July and December, where the average cost of tickets from the United Kingdom is $1,255 and $1,225 respectively. For one-way flights, the best month to travel is January with an average price of $756.

How far in advance should I book a flight to Boise?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Boise, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 2 weeks before departure, which saves you about 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$559
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from London to Boise

FAQs - booking Boise flights

  • How far is Boise Air Term. Gowen Fld Airport from central Boise?

    The distance between Boise Air Term. Gowen Fld Airport and downtown Boise is 3 miles.

  • What is the name of Boise’s airport?

    When flying to Boise, you'll arrive at Boise Air Term. Gowen Fld Airport (BOI). The airport is also known as Air Term Gowen Fld, Air Term. Gowen Fld, or Boise.

  • What is the cheapest day to fly to Boise?

    Based on KAYAK data, the cheapest day to fly to Boise is Thursday where round-trip tickets can be as cheap as $907. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $1,365 on average.

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

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

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

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

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

  • What is the cheapest time of day to fly to Boise?

    The cheapest time of day to fly to Boise is generally in the afternoon, when round-trip flights cost $780 on average. The most expensive time of day to fly to Boise is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,267.

  • How many direct flights to Boise are there each week?

    Each week there are around 605 direct flights from within United Kingdom to Boise. The most common day for departures is Sunday, with 16% of flights taking off on this day.

Top tips for finding cheap flights to Boise

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Boise flight deals.

Reviews of the top airline flying from the United Kingdom to Boise

 
See real verified KAYAK customer reviews for airlines flying to Boise. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United Kingdom to Boise. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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.
7.4
United AirlinesOverall score based on 8915 reviews
8.1Crew
7.7Boarding
7.1Entertainment
6.6Food
7.3Comfort
Airline reviews

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

2.0 MediocreAnonymous, Aug 2025SEA - DEN
Read more United Airlines reviews

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

For both flights I requested a gluten free meal, they didn’t have one nor were there other options.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

The experience was great, the crew was very polite and hospitable. I will definitely make if my go to airlines.

Inoperable monitor left no entert for 9 hours. Crew was not helpful Food was awful.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

This is for UA2274 from Houston to Sacramento. The flight was delayed arriving due to mechanical issues so we left about 3 hours later than scheduled. When boarding the plane the temperature inside was excessive - likely close to 100. Pilot apologized and said it was going to improve at altitude, which it did. But before that I honestly thought there might have been more delays removing passengers made ill from the heat. We were delayed leaving due to another mechanical issue. There was not water on the plane due to a panel that was not secured. They did that quickly, but the combination of mechanical issues was rather disturbing and did not reflect well on United.

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Everything you need to know for your flight to Boise

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