$550 Find Cheap Flights from London Heathrow Airport to Idaho - 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 Heathrow to Idaho departing on 9/8. 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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Cheap Flights from Heathrow to Idaho

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boise
Boise2 stops$760
Idaho Falls
Idaho Falls1 stop$1,022
Spokane
Spokane2 stops$762
Boise
Boise2 stops$760
Idaho Falls
Idaho Falls1 stop$1,022
Spokane
Spokane2 stops$762

Book Cheap Heathrow to Idaho Plane Tickets

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

Fri, Sep 11 - Fri, Sep 18
Scandinavian Airlines Logo
6:40 am - 6:40 pm
LHR
-
BOI
19h 00m
2 stops
Scandinavian Airlines Logo
4:00 pm - 4:00 pm
BOI
-
LHR
41h 00m
2 stops
$760Scandinavian Airlines
Sat, Sep 12 - Sat, Sep 19
Scandinavian Airlines Logo
6:40 am - 5:09 pm
LHR
-
GEG
18h 29m
2 stops
Scandinavian Airlines Logo
11:10 am - 4:00 pm
GEG
-
LHR
20h 50m
2 stops
$762Scandinavian Airlines
Fri, Sep 11 - Sat, Sep 26
Scandinavian Airlines Logo
6:40 am - 10:34 pm
LHR
-
BOI
22h 54m
2 stops
Scandinavian Airlines Logo
10:34 am - 5:40 pm
BOI
-
LHR
24h 06m
2 stops
$773Scandinavian Airlines
Sat, Sep 12 - Sat, Sep 19
Scandinavian Airlines Logo
6:40 am - 5:09 pm
LHR
-
GEG
18h 29m
2 stops
Scandinavian Airlines Logo
1:00 pm - 4:25 pm
GEG
-
LHR
19h 25m
3 stops
$777Scandinavian Airlines
Fri, Sep 11 - Sat, Sep 26
Scandinavian Airlines Logo
6:40 am - 10:34 pm
LHR
-
BOI
22h 54m
3 stops
Scandinavian Airlines Logo
10:34 am - 5:40 pm
BOI
-
LHR
24h 06m
2 stops
$780Scandinavian Airlines
Fri, Sep 11 - Sat, Sep 26
Scandinavian Airlines Logo
6:40 am - 10:34 pm
LHR
-
BOI
22h 54m
2 stops
Scandinavian Airlines Logo
10:34 am - 4:25 pm
BOI
-
LHR
22h 51m
3 stops
$784Scandinavian Airlines
Fri, Aug 28 - Fri, Sep 11
Scandinavian Airlines Logo
6:40 am - 7:14 pm
LHR
-
GEG
20h 34m
2 stops
Scandinavian Airlines Logo
1:00 pm - 1:35 pm
GEG
-
LHR
16h 35m
2 stops
$787Scandinavian Airlines
Fri, Dec 4 - Mon, Dec 7
Scandinavian Airlines Logo
6:40 am - 10:54 pm
LHR
-
BOI
23h 14m
2 stops
Scandinavian Airlines Logo
4:14 pm - 4:00 pm
BOI
-
LHR
40h 46m
2 stops
$787Scandinavian Airlines
Fri, Dec 4 - Mon, Dec 7
Scandinavian Airlines Logo
6:40 am - 10:54 pm
LHR
-
BOI
23h 14m
2 stops
Scandinavian Airlines Logo
4:14 pm - 4:00 pm
BOI
-
LHR
40h 46m
2 stops
$788Scandinavian Airlines
Fri, Dec 4 - Mon, Dec 7
Scandinavian Airlines Logo
6:40 am - 10:54 pm
LHR
-
BOI
23h 14m
2 stops
Scandinavian Airlines Logo
4:14 pm - 4:00 pm
BOI
-
LHR
40h 46m
2 stops
$789Scandinavian Airlines
Booking Insights

KAYAK's insights & trends for Heathrow to Idaho flights

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

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

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

Flight prices are below average for this route right now.

Flights to Idaho from London Heathrow Airport usually cost between $1,345 and $1,575 in September.
The lowest price found in the past 5 days was $760 on Scandinavian Airlines (Sep 11-Sep 18).

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Idaho, 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 Idaho is November, when tickets cost $805 (return) on average. On the other hand, the most expensive months are August and December, when the average cost of round-trip tickets is $1,526 and $1,294 respectively.

Find deals

Good to know

Low season

January

Cheapest flight

$550
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from London to Boise

FAQs - booking Idaho flights

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

    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 Heathrow Airport to Idaho.

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

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

    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 from London Heathrow Airport to Idaho 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 from London Heathrow Airport to Idaho?

    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 from London Heathrow Airport to Idaho 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 Heathrow to Idaho

Information on your arrival and departure airports

London Heathrow Airport (LHR)