LHR

$334 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 9/15. 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

Sat, Oct 3 - Tue, Oct 6
Lufthansa Logo
12:50 pm - 2:40 pm
GEG
-
LHR
41h 50m
2 stops
Lufthansa Logo
6:55 am - 8:53 pm
LHR
-
GEG
21h 58m
2 stops
$781Lufthansa
Sat, Aug 29 - Mon, Aug 31
Multiple Airlines Logo
7:01 pm - 6:30 am
BOI
-
LHR
28h 29m
2 stops
Multiple Airlines Logo
8:25 pm - 9:25 pm
LHR
-
BOI
32h 00m
2 stops
$815Multiple Airlines
Mon, Sep 14 - Wed, Sep 16
United Airlines Logo
1:38 pm - 12:25 pm
GEG
-
LHR
14h 47m
1 stop
United Airlines Logo
8:40 am - 10:35 am
LHR
-
GEG
33h 55m
2 stops
$819United Airlines
Wed, Sep 9 - Wed, Oct 7
United Airlines Logo
12:57 pm - 2:10 pm
GEG
-
LHR
17h 13m
1 stop
United Airlines Logo
7:25 am - 10:30 am
LHR
-
GEG
35h 05m
2 stops
$868United Airlines
Wed, Aug 12 - Tue, Sep 15
Iberia Logo
12:53 pm - 2:25 pm
GEG
-
LHR
17h 32m
1 stop
Iberia Logo
6:15 am - 8:47 pm
LHR
-
GEG
22h 32m
2 stops
$874Iberia
Wed, Aug 12 - Tue, Sep 15
Iberia Logo
12:45 pm - 2:25 pm
GEG
-
LHR
17h 40m
1 stop
Iberia Logo
6:15 am - 8:47 pm
LHR
-
GEG
22h 32m
2 stops
$875Iberia
Sun, Sep 20 - Tue, Oct 13
Delta Logo
4:50 pm - 3:00 pm
BOI
-
LHR
15h 10m
1 stop
Delta Logo
6:30 am - 8:17 pm
LHR
-
BOI
20h 47m
2 stops
$878Delta
Sat, Sep 12 - Thu, Sep 17
Scandinavian Airlines Logo
10:50 am - 6:30 pm
GEG
-
LHR
23h 40m
2 stops
Scandinavian Airlines Logo
7:30 pm - 5:08 pm
LHR
-
GEG
29h 38m
2 stops
$882Scandinavian Airlines
Sat, Oct 3 - Mon, Oct 12
Scandinavian Airlines Logo
12:42 pm - 9:40 pm
BOI
-
LHR
25h 58m
2 stops
Scandinavian Airlines Logo
5:00 pm - 11:08 pm
LHR
-
BOI
37h 08m
2 stops
$894Scandinavian Airlines
Wed, May 20 - Fri, May 29
Delta Logo
5:59 pm - 5:35 pm
JAC
-
LHR
16h 36m
2 stops
Delta Logo
6:30 am - 8:15 pm
LHR
-
JAC
20h 45m
2 stops
$1,119Delta
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$334
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 16% increase in price.
Flight from Boise 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
Hayes
Wembley
Richmond
Luton
Salisbury
Crawley
Watford
Ilford
Eastbourne
Guildford
Bedford
Colchester
Ipswich
Kingston upon Thames
Northampton
St. Albans
Swindon
Twickenham

Everything you need to know for your flight to Heathrow

Information on your arrival and departure airports

London Heathrow Airport (LHR)