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LHR

$385 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 7/16. 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
0 bags
Sat 6/29
Sat 7/6

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Good to know

Low season

January

High season

June

Cheapest flight

$385
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 43% 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.

See more FAQs

Prefer to fly non-stop from Idaho to London Heathrow Airport?

Find which airlines fly direct from Idaho to Heathrow, which days they fly and book direct flights.

Nonstop departures

Idaho to London Heathrow

Monday

ANA, AccesRail, Aegean Airlines, +88 more

ANA, AccesRail, +89 more

Tuesday

ANA, AccesRail, Aegean Airlines, +88 more

ANA, AccesRail, +89 more

Wednesday

ANA, AccesRail, Aegean Airlines, +90 more

ANA, AccesRail, +91 more

Thursday

ANA, AccesRail, Aegean Airlines, +85 more

ANA, AccesRail, +86 more

Friday

ANA, AccesRail, Aegean Airlines, +92 more

ANA, AccesRail, +93 more

Saturday

ANA, AccesRail, Aegean Airlines, +87 more

ANA, AccesRail, +88 more

Sunday

ANA, AccesRail, Aegean Airlines, +90 more

ANA, AccesRail, +91 more

See more direct flights

Nonstop returns

London Heathrow to Idaho

Monday

ANA, AccesRail, Aegean Airlines, +88 more

ANA, AccesRail, +89 more

Tuesday

ANA, AccesRail, Aegean Airlines, +88 more

ANA, AccesRail, +89 more

Wednesday

ANA, AccesRail, Aegean Airlines, +90 more

ANA, AccesRail, +91 more

Thursday

ANA, AccesRail, Aegean Airlines, +85 more

ANA, AccesRail, +86 more

Friday

ANA, AccesRail, Aegean Airlines, +92 more

ANA, AccesRail, +93 more

Saturday

ANA, AccesRail, Aegean Airlines, +87 more

ANA, AccesRail, +88 more

Sunday

ANA, AccesRail, Aegean Airlines, +90 more

ANA, AccesRail, +91 more

See more direct flights
See more direct flights

Book cheap flights from Idaho to London

Recent round-trip flight deals

9/24Tue
1 stopAmerican Airlines
24h 25mBOI-LHR
10/9Wed
2 stopsAmerican Airlines
19h 26mLHR-BOI
$617
9/24Tue
2 stopsAmerican Airlines
15h 29mBOI-LHR
10/9Wed
2 stopsAmerican Airlines
19h 26mLHR-BOI
$620
10/1Tue
1 stopUnited Airlines
18h 25mIDA-LHR
10/31Thu
2 stopsUnited Airlines
19h 13mLHR-IDA
$634
10/9Wed
1 stopUnited Airlines
14h 45mBOI-LHR
11/6Wed
2 stopsUnited Airlines
19h 03mLHR-BOI
$634
9/24Tue
1 stopFinnair
16h 25mBOI-LHR
10/1Tue
1 stopFinnair
18h 15mLHR-BOI
$648
9/17Tue
1 stop
20h 50mIDA-LHR
10/17Thu
1 stop
15h 00mLHR-IDA
$683
10/27Sun
2 stopsAir Canada
20h 10mBOI-LHR
11/3Sun
2 stopsAir Canada
36h 11mLHR-BOI
$698
9/2Mon
1 stopFinnair
16h 15mBOI-LHR
9/16Mon
1 stopFinnair
16h 45mLHR-BOI
$733
8/25Sun
2 stops
17h 25mGEG-LHR
9/6Fri
2 stops
16h 36mLHR-GEG
$742
10/17Thu
3 stopsAir Canada
16h 35mBOI-LHR
10/24Thu
3 stopsAir Canada
19h 54mLHR-BOI
$871

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Recent one-way flight deals

7/16Tue
3 stops
55h 55mBOI-LHR
$385
8/19Mon
3 stops
39h 45mBOI-LHR
$405
7/15Mon
2 stopsIcelandair
20h 00mBOI-LHR
$464
8/19Mon
2 stopsIcelandair
20h 00mBOI-LHR
$476
8/19Mon
1 stopFinnair
16h 15mBOI-LHR
$493
8/26Mon
1 stopIberia
17h 50mBOI-LHR
$495
8/19Mon
1 stopAlaska Airlines
14h 11mBOI-LHR
$499
8/19Mon
1 stopIberia
16h 15mBOI-LHR
$502
7/14Sun
1 stopFinnair
17h 59mBOI-LHR
$508
7/23Tue
2 stopsAlaska Airlines
16h 30mBOI-LHR
$4,502

Search by stops

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Search by price

Last minute flights from Idaho to Heathrow

Last minute flight, train and bus deals

6/1Sat
multi-stopAmerican Airlines
34h 50mBOI-LHR
6/3Mon
multi-stopAmerican Airlines
34h 43mLHR-BOI
$1,889
6/1Sat
multi-stopAmerican Airlines
34h 20mBOI-LHR
6/3Mon
multi-stopAmerican Airlines
34h 43mLHR-BOI
$1,903
5/31Fri
multi-stopAmerican Airlines
23h 10mBOI-LHR
6/1Sat
multi-stopAmerican Airlines
34h 43mLHR-BOI
$2,615
5/31Fri
multi-stopLufthansa
13h 26mBOI-LHR
6/1Sat
multi-stopLufthansa
28h 30mLHR-BOI
$2,638
6/1Sat
multi-stop
12h 56mBOI-LHR
6/3Mon
multi-stop
13h 56mLHR-BOI
$2,778
6/1Sat
multi-stop
18h 11mBOI-LHR
6/3Mon
multi-stop
20h 07mLHR-BOI
$2,992
5/31Fri
multi-stop
15h 50mBOI-LHR
6/1Sat
multi-stop
15h 43mLHR-BOI
$3,168
6/1Sat
multi-stopAir Canada
18h 11mBOI-LHR
6/3Mon
multi-stopAir Canada
21h 07mLHR-BOI
$3,172
5/31Fri
multi-stop
14h 58mBOI-LHR
6/1Sat
multi-stop
21h 07mLHR-BOI
$6,448

Search by stops

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Flights to London Heathrow Airport

Destination:

London Heathrow Airport (LHR)United Kingdom

Return flight deals:

London Heathrow Airport - Idaho

Cabin classes: