Cheap flights from London Heathrow to Boise from £609

from as little as £609

4 nights in Boise, departing London Heathrow on 20 / Sep / 2025 with Lufthansa (price found 3 hours ago)

Subject to availability, prices correct of the last 24 hours
Boise

The London Heathrow / Boise route

All 7783 km of it

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Boise flight facts

What you need to know

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Boise

Today alone, Netflights has searched over 229 flights. 20 / Sep / 2025 is currently the lowest priced day of the year to fly the London Heathrow/Boise route. There are around 111 flights on any given week from the UK to Boise and the cheapest month to fly right now is September.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)
LOWEST

-4 °C

AVG

11 °C

HIGHEST

33 °C

Rainfall (mm)
LOWEST

5.1 mm

AVG

25 mm

HIGHEST

40.6 mm

Key facts about Boise

How to get cheap flights from London Heathrow to Boise

Tips and advice from our flight experts

We've gone through lots of different flights, to help you find the cheapest way to get from London Heathrow to Boise. You can choose from five airlines. At the moment, 20 / Sep / 2025 is the cheapest date to travel, but scroll through the results to find the option that works best for you.

British Airways is the most popular airline that flies from London Heathrow to Boise. But it's still worth looking at other options, as there are 111 flights to Boise every week. If you want to broaden your search, look at flights departing from other airports.

Your flight from London Heathrow to Boise will take at least 12 hrs 55 mins. On average, it takes 13 hrs 45 mins to fly the 7783 km distance. Take a look at flight times to see which one works best for you.

The cheapest month to fly to Boise is October, while December is when the prices of flights, hotels and car hire will be at their highest. If you need somewhere to stay for your trip to the USA, take a look at our accommodation options.

Other popular destinations near Boise

Where other people are flying to

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