$455 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 4/25. 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
Boise1 stop$674
Idaho Falls
Idaho Falls1 stop$1,064
Spokane
Spokane1 stop$786
Boise
Boise1 stop$674
Idaho Falls
Idaho Falls1 stop$1,064
Spokane
Spokane1 stop$786

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

Mon, Apr 27 - Sun, May 3
United Airlines Logo
10:35 am - 9:17 pm
LHR
-
BOI
17h 42m
1 stop
United Airlines Logo
6:23 am - 7:25 am
BOI
-
LHR
18h 02m
1 stop
$674United Airlines
Tue, Mar 31 - Mon, Apr 20
Delta Logo
5:45 pm - 10:50 pm
LHR
-
GEG
13h 05m
1 stop
Delta Logo
3:30 pm - 3:35 pm
GEG
-
LHR
16h 05m
1 stop
$786Delta
Thu, Apr 9 - Thu, Apr 23
Multiple Airlines Logo
7:25 am - 10:52 pm
LHR
-
GEG
23h 27m
2 stops
Multiple Airlines Logo
7:09 am - 10:10 am
GEG
-
LHR
19h 01m
1 stop
$799Multiple Airlines
Mon, Apr 27 - Mon, May 4
Lufthansa Logo
7:25 am - 9:11 pm
LHR
-
GEG
21h 46m
2 stops
Lufthansa Logo
12:25 pm - 11:10 am
GEG
-
LHR
14h 45m
1 stop
$812Lufthansa
Mon, Apr 13 - Mon, Apr 20
Lufthansa Logo
7:30 am - 9:11 pm
LHR
-
GEG
21h 41m
2 stops
Lufthansa Logo
7:00 am - 11:10 am
GEG
-
LHR
20h 10m
1 stop
$813Lufthansa
Thu, Apr 9 - Thu, Apr 23
Multiple Airlines Logo
7:25 am - 10:52 pm
LHR
-
GEG
23h 27m
2 stops
Multiple Airlines Logo
7:09 am - 10:40 am
GEG
-
LHR
19h 31m
2 stops
$819Multiple Airlines
Wed, Apr 29 - Wed, May 6
Virgin Atlantic Logo
11:45 am - 9:42 pm
LHR
-
SUN
16h 57m
2 stops
Virgin Atlantic Logo
3:34 pm - 6:45 am
SUN
-
LHR
32h 11m
2 stops
$1,011Virgin Atlantic
Wed, Apr 29 - Wed, May 6
Virgin Atlantic Logo
10:55 am - 9:42 pm
LHR
-
SUN
17h 47m
1 stop
Virgin Atlantic Logo
3:34 pm - 1:15 pm
SUN
-
LHR
14h 41m
2 stops
$1,022Virgin Atlantic
Tue, Sep 1 - Fri, Sep 25
KLM Logo
6:30 am - 10:14 pm
LHR
-
IDA
22h 44m
2 stops
KLM Logo
6:50 pm - 10:00 am
IDA
-
LHR
32h 10m
1 stop
$1,083KLM
Tue, Sep 1 - Fri, Sep 25
KLM Logo
8:55 pm - 6:14 pm
LHR
-
IDA
28h 19m
2 stops
KLM Logo
6:50 pm - 10:00 am
IDA
-
LHR
32h 10m
1 stop
$1,100KLM
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.

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 $783 (return) on average. On the other hand, the most expensive months are December and August, when the average cost of round-trip tickets is $1,457 and $1,363 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$455
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 28% 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)