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Find cheap flights from Idaho to London Heathrow Airport from $487

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 9/3. 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
Fri 6/7
Fri 6/14

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In the last 7 days travelers have searched 43,968,530 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

July

Cheapest flight

$487
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 28% 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.

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, +89 more

ANA, AccesRail, +90 more

Tuesday

ANA, AccesRail, Aegean Airlines, +89 more

ANA, AccesRail, +90 more

Wednesday

ANA, AccesRail, Aegean Airlines, +91 more

ANA, AccesRail, +92 more

Thursday

ANA, AccesRail, Aegean Airlines, +86 more

ANA, AccesRail, +87 more

Friday

ANA, AccesRail, Aegean Airlines, +93 more

ANA, AccesRail, +94 more

Saturday

ANA, AccesRail, Aegean Airlines, +88 more

ANA, AccesRail, +89 more

Sunday

ANA, AccesRail, Aegean Airlines, +91 more

ANA, AccesRail, +92 more

See more direct flights

Nonstop returns

London Heathrow to Idaho

Monday

ANA, AccesRail, Aegean Airlines, +89 more

ANA, AccesRail, +90 more

Tuesday

ANA, AccesRail, Aegean Airlines, +89 more

ANA, AccesRail, +90 more

Wednesday

ANA, AccesRail, Aegean Airlines, +91 more

ANA, AccesRail, +92 more

Thursday

ANA, AccesRail, Aegean Airlines, +86 more

ANA, AccesRail, +87 more

Friday

ANA, AccesRail, Aegean Airlines, +93 more

ANA, AccesRail, +94 more

Saturday

ANA, AccesRail, Aegean Airlines, +88 more

ANA, AccesRail, +89 more

Sunday

ANA, AccesRail, Aegean Airlines, +91 more

ANA, AccesRail, +92 more

See more direct flights
See more direct flights

Book cheap flights from Idaho to London

Recent round-trip flight deals

8/17Sat
2 stopsUnited Airlines
28h 40mBOI-LHR
8/30Fri
2 stopsUnited Airlines
35h 00mLHR-BOI
$694
8/12Mon
1 stopAmerican Airlines
22h 44mGEG-LHR
8/29Thu
1 stopAmerican Airlines
19h 36mLHR-GEG
$695
9/2Mon
1 stopKLM
14h 46mBOI-LHR
10/1Tue
1 stopKLM
15h 00mLHR-BOI
$791
8/14Wed
2 stopsVirgin Atlantic
16h 00mBOI-LHR
8/21Wed
2 stopsVirgin Atlantic
17h 29mLHR-BOI
$823
9/13Fri
1 stopDelta
19h 20mBOI-LHR
9/20Fri
2 stopsDelta
18h 59mLHR-BOI
$835
9/13Fri
2 stopsDelta
17h 45mBOI-LHR
9/20Fri
2 stopsDelta
18h 59mLHR-BOI
$839
9/13Fri
1 stopKLM
15h 50mBOI-LHR
9/20Fri
1 stopKLM
21h 09mLHR-BOI
$841
9/7Sat
1 stopVirgin Atlantic
32h 20mGEG-LHR
9/29Sun
1 stopVirgin Atlantic
15h 11mLHR-GEG
$866
5/18Sat
1 stopAir France
15h 55mGEG-LHR
5/25Sat
2 stopsAir France
16h 44mLHR-GEG
$886
8/3Sat
1 stopAir France
19h 35mGEG-LHR
8/18Sun
2 stopsAir France
32h 13mLHR-GEG
$943

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Recent one-way flight deals

9/3Tue
2 stopsIcelandair
17h 05mGEG-LHR
$487
7/23Tue
2 stopsUnited Airlines
22h 05mLWS-LHR
$585
5/13Mon
2 stopsUnited Airlines
17h 22mBOI-LHR
$585
9/3Tue
1 stopUnited Airlines
14h 22mGEG-LHR
$585
10/12Sat
1 stopAlaska Airlines
31h 00mBOI-LHR
$602
9/3Tue
3 stopsAir Canada
19h 30mGEG-LHR
$663
6/11Tue
2 stopsWestJet
23h 00mGEG-LHR
$664
7/22Mon
3 stopsDelta
38h 45mLWS-LHR
$670
5/26Sun
2 stopsWestJet
23h 05mGEG-LHR
$678
10/12Sat
3 stopsAir Canada
18h 11mBOI-LHR
$2,267

Search by stops

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Last minute flights from Idaho to Heathrow

Last minute flight, train and bus deals

5/11Sat
multi-stopAmerican Airlines
15h 40mBOI-LHR
5/18Sat
multi-stopAmerican Airlines
20h 03mLHR-BOI
$1,306
5/11Sat
multi-stopAmerican Airlines
15h 35mBOI-LHR
5/18Sat
multi-stopAmerican Airlines
20h 03mLHR-BOI
$1,309
5/11Sat
multi-stopKLM
16h 00mBOI-LHR
5/18Sat
multi-stopKLM
18h 11mLHR-BOI
$1,336
5/11Sat
multi-stop
18h 14mBOI-LHR
5/18Sat
multi-stop
16h 19mLHR-BOI
$1,357
5/9Thu
multi-stopLufthansa
12h 03mBOI-LHR
5/21Tue
multi-stopLufthansa
13h 42mLHR-BOI
$7,217
5/9Thu
multi-stopLufthansa
12h 03mBOI-LHR
5/21Tue
multi-stopLufthansa
17h 17mLHR-BOI
$7,982
5/9Thu
multi-stop
14h 27mBOI-LHR
5/21Tue
multi-stop
20h 15mLHR-BOI
$8,731
5/9Thu
multi-stop
17h 00mBOI-LHR
5/21Tue
multi-stop
20h 15mLHR-BOI
$8,741

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Search by airline

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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: