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$358 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 6/11. 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 6/8
Sat 6/15

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Good to know

Low season

February

High season

May

Cheapest flight

$358
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 35% increase in price.
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, +122 more

ANA, AccesRail, +123 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, +122 more

ANA, AccesRail, +123 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

8/17Sat
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
8/12Mon
2 stopsVirgin Atlantic
19h 55mGEG-LGW
8/29Thu
2 stopsVirgin Atlantic
18h 45mLGW-GEG
$806
9/20Fri
2 stopsDelta
17h 35mBOI-LGW
9/27Fri
2 stopsDelta
18h 29mLGW-BOI
$807
9/24Tue
2 stopsDelta
15h 50mBOI-LGW
10/3Thu
2 stopsDelta
18h 29mLGW-BOI
$808
8/14Wed
2 stopsVirgin Atlantic
16h 00mBOI-LHR
8/21Wed
2 stopsVirgin Atlantic
17h 29mLHR-BOI
$823
9/13Fri
1 stopKLM
15h 50mBOI-LHR
9/20Fri
1 stopKLM
21h 09mLHR-BOI
$841
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

Search by stops

Search by airline

Search by price

Recent one-way flight deals

6/11Tue
3 stops
55h 11mBOI-LGW
$358
6/11Tue
3 stops
44h 46mBOI-LCY
$412
6/11Tue
2 stops
34h 06mBOI-LGW
$413
9/3Tue
2 stopsIcelandair
17h 05mGEG-LHR
$487
9/3Tue
2 stopsIcelandair
14h 15mGEG-LGW
$573
7/23Tue
2 stopsUnited Airlines
22h 05mLWS-LHR
$585
8/26Mon
1 stopUnited Airlines
24h 18mBOI-LHR
$585
10/12Sat
1 stopAlaska Airlines
31h 00mBOI-LHR
$602
10/20Sun
2 stopsAmerican Airlines
18h 01mGEG-LGW
$607
8/26Mon
2 stopsAmerican Airlines
18h 00mBOI-LGW
$637

Search by stops

Search by airline

Search by price

Last minute flights from Idaho to London

Last minute flight, train and bus deals

5/14Tue
multi-stopAmerican Airlines
16h 00mIDA-LHR
5/21Tue
multi-stopAmerican Airlines
21h 49mLHR-IDA
$816
5/14Tue
multi-stopAmerican Airlines
17h 40mIDA-LHR
5/21Tue
multi-stopAmerican Airlines
20h 54mLHR-IDA
$820
5/14Tue
multi-stopAmerican Airlines
16h 00mIDA-LHR
5/21Tue
multi-stopAmerican Airlines
16h 34mLHR-IDA
$846
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
19h 54mLHR-BOI
$1,352
5/11Sat
multi-stop
18h 14mBOI-LHR
5/18Sat
multi-stop
16h 19mLHR-BOI
$1,357
5/11Sat
multi-stopIcelandair
15h 45mBOI-LGW
5/18Sat
multi-stopIcelandair
17h 00mLGW-BOI
$1,628
5/11Sat
multi-stopDelta
15h 05mBOI-LCY
5/18Sat
multi-stopDelta
20h 31mLCY-BOI
$3,851

Search by stops

Search by airline

Search by price

Flights to London

Return flight deals:

London - Idaho

Cabin classes: