$583 Find Cheap Flights from London Heathrow Airport to Idaho

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 10/28. 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 Idaho

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Idaho, 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 London to Idaho, as well as popular online travel agencies
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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$836
Idaho Falls
Idaho Falls1 stop$1,080
Spokane
Spokane2 stops$885
Boise
Boise2 stops$836
Idaho Falls
Idaho Falls1 stop$1,080
Spokane
Spokane2 stops$885

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

Wed, Nov 4 - Sun, Nov 8
United Airlines Logo
7:40 am - 11:59 pm
LHR
-
BOI
23h 19m
2 stops
United Airlines Logo
10:39 am - 7:30 am
BOI
-
LHR
37h 51m
2 stops
$836United Airlines
Wed, Nov 4 - Sun, Nov 8
United Airlines Logo
7:40 am - 11:59 pm
LHR
-
BOI
23h 19m
2 stops
United Airlines Logo
5:22 pm - 9:40 am
BOI
-
LHR
33h 18m
1 stop
$838United Airlines
Tue, Sep 1 - Tue, Sep 8
Lufthansa Logo
10:35 am - 6:51 pm
LHR
-
GEG
16h 16m
1 stop
Lufthansa Logo
1:04 pm - 11:10 am
GEG
-
LHR
14h 06m
1 stop
$902Lufthansa
Fri, Sep 4 - Fri, Sep 18
Lufthansa Logo
2:50 pm - 8:46 pm
LHR
-
GEG
13h 56m
1 stop
Lufthansa Logo
1:09 pm - 7:25 am
GEG
-
LHR
34h 16m
1 stop
$950Lufthansa
Tue, Sep 1 - Tue, Sep 8
Scandinavian Airlines Logo
6:40 am - 7:14 pm
LHR
-
GEG
20h 34m
2 stops
Scandinavian Airlines Logo
1:00 pm - 4:25 pm
GEG
-
LHR
19h 25m
3 stops
$992Scandinavian Airlines
Fri, Sep 4 - Fri, Sep 18
Scandinavian Airlines Logo
9:05 pm - 5:00 pm
LHR
-
GEG
27h 55m
3 stops
Scandinavian Airlines Logo
11:10 am - 4:00 pm
GEG
-
LHR
20h 50m
2 stops
$993Scandinavian Airlines
Tue, Sep 1 - Fri, Sep 25
Finnair Logo
10:05 am - 9:20 pm
LHR
-
IDA
18h 15m
1 stop
Finnair Logo
2:08 pm - 2:25 pm
IDA
-
LHR
17h 17m
1 stop
$1,080Finnair
Mon, Aug 31 - Wed, Sep 9
Multiple Airlines Logo
10:20 am - 11:15 am
LHR
-
JAC
31h 55m
2 stops
Multiple Airlines Logo
12:02 pm - 3:05 pm
JAC
-
LHR
20h 03m
1 stop
$1,095Multiple Airlines
Thu, Aug 27 - Wed, Sep 9
Multiple Airlines Logo
12:00 pm - 11:15 am
LHR
-
JAC
30h 15m
2 stops
Multiple Airlines Logo
12:02 pm - 3:05 pm
JAC
-
LHR
20h 03m
1 stop
$1,102Multiple Airlines
Tue, Sep 1 - Fri, Sep 25
Finnair Logo
10:30 am - 9:20 pm
LHR
-
IDA
17h 50m
2 stops
Finnair Logo
7:00 am - 7:20 am
IDA
-
LHR
17h 20m
2 stops
$1,110Finnair
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 November.

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 March, when tickets cost $682 (return) on average. On the other hand, the most expensive months are January and February, when the average cost of round-trip tickets is $1,055 and $914 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$583
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly with an average 24% increase in price.
Flight from London Heathrow Airport to Spokane

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)