LHR

$341 Find Cheap Flights from Idaho 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 to Heathrow departing on 5/9. 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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Flight Deals

Cheap Flights from Idaho to Heathrow

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

Mon, Aug 17 - Tue, Aug 25
Scandinavian Airlines Logo
3:30 pm - 4:00 pm
BOI
-
LHR
41h 30m
2 stops
Scandinavian Airlines Logo
6:40 am - 11:04 pm
LHR
-
BOI
23h 24m
2 stops
$737Scandinavian Airlines
Sat, Aug 22 - Sat, Sep 5
Scandinavian Airlines Logo
3:30 pm - 4:00 pm
BOI
-
LHR
41h 30m
2 stops
Scandinavian Airlines Logo
2:20 pm - 11:04 pm
LHR
-
BOI
39h 44m
2 stops
$762Scandinavian Airlines
Wed, Sep 2 - Tue, Oct 27
Scandinavian Airlines Logo
3:30 pm - 6:30 pm
BOI
-
LHR
20h 00m
2 stops
Scandinavian Airlines Logo
6:40 am - 11:08 pm
LHR
-
BOI
22h 28m
2 stops
$774Scandinavian Airlines
Tue, Apr 28 - Tue, May 5
Icelandair Logo
4:38 pm - 8:20 pm
BOI
-
LHR
20h 42m
2 stops
Icelandair Logo
1:05 pm - 11:02 pm
LHR
-
BOI
16h 57m
2 stops
$827Icelandair
Tue, May 5 - Tue, May 12
Icelandair Logo
4:38 pm - 8:20 pm
BOI
-
LHR
20h 42m
2 stops
Icelandair Logo
1:05 pm - 11:02 pm
LHR
-
BOI
16h 57m
2 stops
$835Icelandair
Tue, May 5 - Tue, May 12
Lufthansa Logo
2:26 pm - 6:40 pm
BOI
-
LHR
21h 14m
2 stops
Lufthansa Logo
7:25 am - 10:50 pm
LHR
-
BOI
22h 25m
2 stops
$850Lufthansa
Mon, Apr 6 - Mon, Apr 13
Virgin Atlantic Logo
12:45 pm - 10:00 am
BOI
-
LHR
14h 15m
1 stop
Virgin Atlantic Logo
12:25 pm - 8:29 pm
LHR
-
BOI
15h 04m
1 stop
$866Virgin Atlantic
Wed, Aug 12 - Tue, Sep 15
United Airlines Logo
5:00 am - 12:20 pm
GEG
-
LHR
23h 20m
1 stop
United Airlines Logo
6:55 am - 10:22 pm
LHR
-
GEG
23h 27m
2 stops
$884United Airlines
Wed, Apr 29 - Wed, May 20
United Airlines Logo
12:35 pm - 2:10 pm
GEG
-
LHR
17h 35m
1 stop
United Airlines Logo
2:05 pm - 3:12 pm
LHR
-
GEG
33h 07m
2 stops
$892United Airlines
Tue, May 5 - Tue, May 26
Lufthansa Logo
2:30 pm - 5:40 pm
JAC
-
LHR
20h 10m
2 stops
Lufthansa Logo
6:55 am - 5:54 pm
LHR
-
JAC
17h 59m
2 stops
$936Lufthansa
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$341
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Spokane to London Heathrow Airport

FAQs for booking Idaho to London Heathrow Airport flights

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

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

    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 to London Heathrow Airport with an airline and back to Idaho with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho 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 Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Heathrow?

Book flights to Heathrow if you plan to visit one of these locations
Hounslow
Slough
Wembley
Hayes
Richmond
Luton
Salisbury
Ilford
Crawley
Watford
Guildford
Colchester
Bedford
Eastbourne
St. Albans
Swindon
Ipswich
Kingston upon Thames
Northampton
Twickenham

Everything you need to know for your flight to Heathrow

Information on your arrival and departure airports

London Heathrow Airport (LHR)