BOI - LHR

$447 Find Cheap Flights from Boise to London Heathrow Airport - 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 Boise to London departing on 8/31. 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 round-trip
$746
Typical prices: $639-$1,155
United Airlines
Mon 11/2Wed 11/4
BOI - LHR • 1 stop
Cheapest one-way
$447
Multiple Airlines
Mon 8/31
BOI - LHR • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Boise and London. You'll need at least 1 connection.
Insights
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Top layover airports
San Francisco (SFO)
Cheapest • Avg $708 (round-trip)
Denver (DEN)
Shortest trip • 11h 54m (one-way)
Insights
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When to travel
October
Cheapest • 28% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boise to London (BOI-LHR)

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

Mon, Nov 2 - Wed, Nov 4
United Airlines Logo
6:20 am - 11:15 am
BOI
-
LHR
21h 55m
1 stop
United Airlines Logo
6:50 am - 10:51 pm
LHR
-
BOI
23h 01m
2 stops
$746United Airlines
Mon, Nov 2 - Wed, Nov 4
United Airlines Logo
8:15 am - 11:15 am
BOI
-
LHR
20h 00m
1 stop
United Airlines Logo
11:05 am - 10:51 pm
LHR
-
BOI
42h 46m
2 stops
$746United Airlines
Mon, Nov 2 - Wed, Nov 4
United Airlines Logo
5:00 am - 7:10 am
BOI
-
LHR
19h 10m
2 stops
United Airlines Logo
6:50 am - 10:51 pm
LHR
-
BOI
23h 01m
2 stops
$749United Airlines
Mon, Nov 2 - Wed, Nov 4
Delta Logo
1:06 pm - 10:00 am
BOI
-
LHR
13h 54m
1 stop
Delta Logo
10:00 am - 10:25 pm
LHR
-
BOI
19h 25m
2 stops
$791Delta
Mon, Nov 2 - Wed, Nov 4
Alaska Airlines Logo
1:51 pm - 12:20 pm
BOI
-
LHR
15h 29m
1 stop
Alaska Airlines Logo
2:45 pm - 11:51 pm
LHR
-
BOI
16h 06m
1 stop
$859Alaska Airlines
Wed, Nov 11 - Thu, Nov 19
Alaska Airlines Logo
8:20 am - 12:20 pm
BOI
-
LHR
21h 00m
1 stop
Alaska Airlines Logo
2:45 pm - 11:51 pm
LHR
-
BOI
16h 06m
1 stop
$886Alaska Airlines
Mon, Oct 5 - Fri, Nov 6
Virgin Atlantic Logo
7:19 pm - 3:35 pm
BOI
-
LHR
13h 16m
1 stop
Virgin Atlantic Logo
6:30 am - 8:36 pm
LHR
-
BOI
21h 06m
2 stops
$903Virgin Atlantic
Tue, Oct 13 - Tue, Oct 20
Virgin Atlantic Logo
11:32 am - 11:00 am
BOI
-
LHR
16h 28m
1 stop
Virgin Atlantic Logo
11:45 am - 10:08 pm
LHR
-
BOI
17h 23m
2 stops
$903Virgin Atlantic
Tue, Oct 13 - Tue, Oct 20
Delta Logo
8:25 am - 11:20 am
BOI
-
LHR
19h 55m
1 stop
Delta Logo
6:30 am - 6:33 pm
LHR
-
BOI
19h 03m
2 stops
$904Delta
Tue, Sep 29 - Wed, Oct 7
Delta Logo
3:28 pm - 11:20 am
BOI
-
LHR
12h 52m
1 stop
Delta Logo
6:30 am - 5:14 pm
LHR
-
BOI
17h 44m
2 stops
$904Delta
Booking Insights

KAYAK's insights & trends for Boise to London flights

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

How much is a round-trip flight from Boise to London Heathrow Airport?

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

Flight prices are typical for this route right now.

Flights to London Heathrow Airport from Boise usually cost between $727 and $1,027 in November.
The lowest price found in the past 5 days was $746 on United Airlines (Nov 2-Nov 4).

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boise to London Heathrow Airport, 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 Boise to London Heathrow Airport is October, where tickets cost $810 (return) on average. On the other hand, the most expensive months are January and June, where the average cost of round-trip tickets is $2,021 and $1,610 respectively.

Find deals

Good to know

Low season

June

Cheapest flight

$447
Best time to beat the crowds but there is an average 43% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Boise to London Heathrow Airport

When to book flights from Boise to London

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

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

    In the last 5 days, the lowest price for a flight from Boise to London Heathrow Airport was $447 for a one-way ticket and $746 for a round-trip.

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

    A passport is required to fly from Boise to London Heathrow Airport.

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Boise to London are Delta and Virgin Atlantic. With an average price for the route of $945 and an overall rating of 7.8, Delta is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of $954 and an overall rating of 7.5.

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

    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 Boise to London Heathrow Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from 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 from Boise to London Heathrow Airport?

    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 London Heathrow Airport with an airline and back to Boise with another airline. Booking your flights between Boise and LHR 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 Boise to London Heathrow Airport?

    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 London Heathrow Airport from Boise up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

Information on your arrival and departure airports

Boise (BOI)
Heathrow (LHR)