BOI - LHR

£348 Find Cheap Flights from Boise to London Heathrow Airport

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 Heathrow departing on 25/12. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to London, 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 Boise to London, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
£454
Overall average: £584
Lufthansa
Tue 17/2Tue 24/2
BOI - LHR • 1 stop
Cheapest one-way flight
£348
Lufthansa
Thu 25/12
BOI - LHR • 2 stops
When to travel
February
Cheapest • 24% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boise to Heathrow (BOI-LHR)

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

Tue, 17 Feb - Tue, 24 Feb
Lufthansa Logo
14:40 - 09:40
BOI
-
LHR
12h 00m1 stop
Lufthansa Logo
07:30 - 21:32
LHR
-
BOI
21h 02m2 stops
£454Lufthansa
Tue, 13 Jan - Tue, 27 Jan
Lufthansa Logo
08:15 - 13:00
BOI
-
LHR
21h 45m2 stops
Lufthansa Logo
20:15 - 18:07
LHR
-
BOI
28h 52m2 stops
£460Lufthansa
Tue, 17 Feb - Thu, 26 Feb
Virgin Atlantic Logo
10:41 - 11:55
BOI
-
LHR
18h 14m1 stop
Virgin Atlantic Logo
12:20 - 20:10
LHR
-
BOI
14h 50m1 stop
£462Virgin Atlantic
Tue, 17 Feb - Thu, 26 Feb
United Airlines Logo
13:44 - 07:25
BOI
-
LHR
34h 41m1 stop
United Airlines Logo
11:10 - 23:48
LHR
-
BOI
19h 38m2 stops
£463United Airlines
Tue, 17 Feb - Tue, 24 Feb
Lufthansa Logo
14:40 - 09:40
BOI
-
LHR
12h 00m1 stop
Lufthansa Logo
11:35 - 21:32
LHR
-
BOI
16h 57m1 stop
£466Lufthansa
Tue, 17 Feb - Fri, 27 Feb
United Airlines Logo
14:40 - 09:40
BOI
-
LHR
12h 00m1 stop
United Airlines Logo
06:35 - 23:48
LHR
-
BOI
24h 13m2 stops
£470United Airlines
Thu, 15 Jan - Sun, 18 Jan
Delta Logo
09:15 - 11:55
BOI
-
LHR
19h 40m1 stop
Delta Logo
06:30 - 20:12
LHR
-
BOI
20h 42m2 stops
£471Delta
Sat, 7 Feb - Sun, 15 Feb
Virgin Atlantic Logo
11:20 - 10:15
BOI
-
LHR
15h 55m2 stops
Virgin Atlantic Logo
06:30 - 18:22
LHR
-
BOI
18h 52m2 stops
£473Virgin Atlantic
Tue, 17 Feb - Tue, 24 Feb
Delta Logo
10:41 - 10:30
BOI
-
LHR
16h 49m2 stops
Delta Logo
06:30 - 21:56
LHR
-
BOI
22h 26m2 stops
£474Delta
Sun, 11 Jan - Sun, 18 Jan
Multiple Airlines Logo
13:41 - 07:50
BOI
-
LHR
35h 09m1 stop
Multiple Airlines Logo
06:30 - 18:28
LHR
-
BOI
18h 58m2 stops
£475Multiple Airlines
Booking Insights

KAYAK's insights & trends for Boise to Heathrow flights

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

What’s the cheapest day of the week to fly from Boise to London Heathrow Airport?

The average price of all round-trip flights from Boise to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.

When flying from Boise to London Heathrow Airport, you should consider leaving on a Wednesday and avoid Thursdays if you are looking for the best rates. For your return to Boise, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

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 February, where tickets cost £584 (return) on average. On the other hand, the most expensive months are January and June, where the average cost of round-trip tickets is £1,127 and £1,048 respectively.

Find deals

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

Low seasonJanuary
Cheapest flight£348
Best time to beat the crowds but there is an average 47% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Boise to London Heathrow Airport

When to book flights from Boise to Heathrow

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

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

    In the last 3 days, the lowest price for a flight from Boise to London Heathrow Airport was £348 for a one-way ticket and £454 for a return.

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

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

  • 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 travellers 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 return ticket. You could then fly to London Heathrow Airport with an airline and back to Boise with another airline.

  • 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 Heathrow

Information on your arrival and departure airports

Boise (BOI)
Heathrow (LHR)