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$393 Find cheap flights from Idaho to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 6/4. 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
Tue 5/28
Tue 6/4

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In the last 7 days travelers have searched 43,219,010 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

September

Cheapest flight

$393
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Boise to London Gatwick Airport

FAQs for booking flights from Idaho to London

  • How does KAYAK find such low prices on flights from Idaho to London?

    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.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London 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?

    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 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?

    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 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?

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

Nonstop departures

Idaho to London

Monday

ANA, AccesRail, Aegean Airlines, +121 more

ANA, AccesRail, +122 more

Tuesday

ANA, AccesRail, Aegean Airlines, +122 more

ANA, AccesRail, +123 more

Wednesday

ANA, AccesRail, Aegean Airlines, +123 more

ANA, AccesRail, +124 more

Thursday

ANA, AccesRail, Aegean Airlines, +119 more

ANA, AccesRail, +120 more

Friday

ANA, AccesRail, Aegean Airlines, +125 more

ANA, AccesRail, +126 more

Saturday

ANA, AccesRail, Aegean Airlines, +119 more

ANA, AccesRail, +120 more

Sunday

ANA, AccesRail, Aegean Airlines, +125 more

ANA, AccesRail, +126 more

See more direct flights

Nonstop returns

London to Idaho

Monday

ANA, AccesRail, Aegean Airlines, +121 more

ANA, AccesRail, +122 more

Tuesday

ANA, AccesRail, Aegean Airlines, +122 more

ANA, AccesRail, +123 more

Wednesday

ANA, AccesRail, Aegean Airlines, +123 more

ANA, AccesRail, +124 more

Thursday

ANA, AccesRail, Aegean Airlines, +119 more

ANA, AccesRail, +120 more

Friday

ANA, AccesRail, Aegean Airlines, +125 more

ANA, AccesRail, +126 more

Saturday

ANA, AccesRail, Aegean Airlines, +119 more

ANA, AccesRail, +120 more

Sunday

ANA, AccesRail, Aegean Airlines, +125 more

ANA, AccesRail, +126 more

See more direct flights
See more direct flights

Book cheap flights from Idaho to London

Recent round-trip flight deals

8/20Tue
2 stopsDelta
18h 00mGEG-LGW
8/27Tue
2 stopsDelta
19h 52mLGW-GEG
$710
8/17Sat
2 stopsUnited Airlines
28h 40mBOI-LHR
8/30Fri
2 stopsUnited Airlines
33h 05mLHR-BOI
$728
8/20Tue
1 stopKLM
15h 30mGEG-LHR
8/27Tue
1 stopKLM
18h 40mLHR-GEG
$741
9/25Wed
1 stopAmerican Airlines
20h 09mBOI-LHR
10/10Thu
2 stopsAmerican Airlines
19h 26mLHR-BOI
$758
9/25Wed
2 stopsAmerican Airlines
16h 04mBOI-LHR
10/15Tue
2 stopsAmerican Airlines
19h 56mLHR-BOI
$763
9/25Wed
1 stopKLM
15h 50mBOI-LHR
10/10Thu
1 stopKLM
12h 48mLHR-BOI
$788
8/20Tue
2 stopsLufthansa
18h 47mGEG-LCY
8/27Tue
2 stopsLufthansa
19h 26mLCY-GEG
$819
5/12Sun
2 stopsAir Canada
16h 55mBOI-LHR
5/28Tue
2 stopsAir Canada
33h 02mLHR-BOI
$821
9/25Wed
2 stopsLufthansa
18h 52mBOI-LCY
10/15Tue
2 stopsLufthansa
19h 09mLCY-BOI
$918
9/25Wed
3 stopsAir Canada
16h 35mBOI-LHR
10/15Tue
3 stopsAir Canada
21h 00mLHR-BOI
$1,075

Search by stops

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Recent one-way flight deals

6/4Tue
2 stops
30h 40mBOI-LGW
$393
6/5Wed
2 stops
35h 52mBOI-LGW
$429
6/4Tue
3 stops
38h 40mBOI-LGW
$456
9/16Mon
2 stopsIcelandair
14h 25mGEG-LHR
$505
10/12Sat
2 stopsAmerican Airlines
22h 16mBOI-LHR
$612
10/5Sat
2 stopsAmerican Airlines
22h 36mGEG-LHR
$612
10/5Sat
1 stopUnited Airlines
21h 56mGEG-LHR
$617
8/26Mon
2 stopsDelta
17h 35mBOI-LGW
$637
8/26Mon
2 stopsDelta
16h 15mBOI-LHR
$637
6/3Mon
2 stopsUnited Airlines
15h 55mBOI-LHR
$888

Search by stops

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Search by price

Last minute flights from Idaho to London

Last minute flight, train and bus deals

4/30Tue
multi-stopAir France
16h 30mGEG-LHR
5/7Tue
multi-stopAir France
16h 44mLHR-GEG
$732
4/30Tue
multi-stopKLM
19h 46mGEG-LHR
5/7Tue
multi-stopKLM
13h 43mLHR-GEG
$738
5/1Wed
multi-stopKLM
13h 35mGEG-LHR
5/8Wed
multi-stopKLM
17h 02mLHR-GEG
$768
4/30Tue
multi-stop
25h 15mGEG-LHR
5/7Tue
multi-stop
23h 47mLHR-GEG
$937
5/1Wed
multi-stop
25h 55mGEG-LHR
5/8Wed
multi-stop
18h 10mLHR-GEG
$1,140
5/1Wed
multi-stopIcelandair
14h 12mGEG-LGW
5/15Wed
multi-stopIcelandair
18h 58mLGW-GEG
$1,348
4/30Tue
multi-stopIcelandair
14h 12mGEG-LGW
5/7Tue
multi-stopIcelandair
15h 55mLGW-GEG
$1,506
4/29Mon
multi-stopAmerican Airlines
18h 55mGEG-LGW
5/8Wed
multi-stopAmerican Airlines
20h 13mLGW-GEG
$1,647
5/1Wed
multi-stopAmerican Airlines
22h 35mGEG-LHR
5/15Wed
multi-stopAmerican Airlines
20h 33mLHR-GEG
$1,648
4/29Mon
multi-stopVirgin Atlantic
19h 15mGEG-LGW
5/13Mon
multi-stopVirgin Atlantic
20h 05mLGW-GEG
$1,697

Search by stops

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Flights to London

Return flight deals:

London - Idaho

Cabin classes: