£205 Find Cheap Flights from Idaho to the United Kingdom

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Good to know - Cheap tickets from Idaho to the United Kingdom

Low seasonJanuary
High seasonJune
Cheapest flight£205
Best time to beat the crowds (25% less expensive on average)
Most popular time to fly (41% more expensive on average)
Flight from Spokane to London Gatwick Airport

FAQs for booking flights from Idaho to the United Kingdom

  • How does KAYAK find such low prices on flights from Idaho to the United Kingdom?

    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 the United Kingdom.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Idaho to the United Kingdom is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Idaho to the United Kingdom?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Idaho to the United Kingdom with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho to the United Kingdom?

    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 from Idaho to the United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to the United Kingdom?

    Based on KAYAK data, the cheapest day to fly to the United Kingdom is Wednesday when return tickets can be as cheap as £485. On the other hand, the most expensive day to fly is Wednesday, when return prices are £485 on average.

  • What is the cheapest time of day to fly to the United Kingdom?

    The cheapest time of day to fly to the United Kingdom is generally in the afternoon, when round-trip flights cost £712 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the evening, which is peak travel time and where the average cost of a ticket is £813.

  • What is the cheapest month to fly from Idaho to the United Kingdom?

    The cheapest month for flights from Idaho to the United Kingdom is October, when tickets cost £552 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is £1,032 and £861 respectively.

  • How far in advance should I book a flight from Idaho to the United Kingdom?

    To get a below-average price on the flight from Idaho to the United Kingdom, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

  • How long is the flight to the United Kingdom?

    An average direct flight from Idaho to the United Kingdom takes 17h 04m, covering a distance of 4647 miles. The shortest route is Boise (BOI) to London Heathrow Airport (LHR) with an average flight time of 11h 41m.

  • What are the most popular destinations in the United Kingdom?

    Based on KAYAK flight searches, the most popular destination is London (83% of total searches to the United Kingdom). The next most popular destinations are Edinburgh (13%) and Manchester (3%). Searches for flights to Birmingham (1%) and to Cardiff (0%) are also popular.

Book cheap flights from Idaho to the United Kingdom

Cheapest flights to the United Kingdom from Idaho found in 2025

Recent return flight deals

29/9Mon
1 stop
19h 05mGEG-LGW
8/10Wed
1 stop
19h 32mLGW-GEG
£445
15/8Fri
1 stop
19h 37mBOI-LGW
25/8Mon
2 stops
40h 59mLGW-BOI
£452
28/9Sun
1 stopUnited Airlines
17h 05mBOI-EDI
22/10Wed
1 stopUnited Airlines
14h 17mEDI-BOI
£506
30/9Tue
1 stopUnited Airlines
13h 05mGEG-EDI
8/10Wed
2 stopsUnited Airlines
21h 35mEDI-GEG
£509
28/9Sun
2 stopsDelta
18h 50mBOI-EDI
22/10Wed
2 stopsDelta
17h 12mEDI-BOI
£509
8/10Wed
2 stopsScandinavian Airlines
20h 25mBOI-LHR
17/10Fri
2 stopsScandinavian Airlines
19h 44mLHR-BOI
£517
8/10Wed
2 stopsScandinavian Airlines
20h 25mBOI-LHR
17/10Fri
3 stopsScandinavian Airlines
23h 24mLHR-BOI
£525
20/8Wed
2 stopsDelta
18h 20mBOI-EDI
14/9Sun
2 stopsDelta
17h 12mEDI-BOI
£531
9/11Sun
2 stopsAir Canada
22h 30mBOI-LHR
19/11Wed
2 stopsAir Canada
30h 14mLHR-BOI
£536
8/11Sat
2 stopsAir Canada
33h 50mBOI-LHR
19/11Wed
2 stopsAir Canada
30h 14mLHR-BOI
£540

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Recent one-way flight deals

14/7Mon
1 stop
20h 50mGEG-LGW
£205
3/10Fri
2 stops
22h 20mBOI-LHR
£246
27/8Wed
3 stopsAir Canada
19h 20mBOI-EDI
£331
19/9Fri
2 stopsAir Canada
57h 35mBOI-EDI
£340
27/8Wed
1 stopKLM
15h 35mBOI-EDI
£344
21/7Mon
3 stopsUnited Airlines
28h 20mBOI-LHR
£350
23/7Wed
2 stopsSWISS
20h 23mBOI-LGW
£358
7/8Thu
1 stopUnited Airlines
12h 48mGEG-EDI
£363
23/7Wed
2 stopsSWISS
35h 18mBOI-LCY
£371
3/10Fri
1 stopKLM
14h 27mBOI-LHR
£378

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Last minute flights from Idaho to the United Kingdom

Last minute flight, train and bus deals

17/6Tue
multi-stopIcelandair
31h 07mGEG-LHR
23/6Mon
multi-stopIcelandair
25h 15mLHR-GEG
£932
13/6Fri
multi-stop
59h 21mBOI-LHR
17/6Tue
multi-stop
15h 34mLHR-BOI
£1,257
17/6Tue
multi-stopLufthansa
12h 03mGEG-LHR
23/6Mon
multi-stopLufthansa
28h 39mLHR-GEG
£1,265
17/6Tue
multi-stopUnited Airlines
12h 43mGEG-LHR
23/6Mon
multi-stopUnited Airlines
43h 18mLHR-GEG
£1,316
17/6Tue
multi-stopKLM
14h 48mGEG-LHR
23/6Mon
multi-stopKLM
16h 54mLHR-GEG
£1,332
17/6Tue
multi-stopKLM
14h 48mGEG-LHR
23/6Mon
multi-stopKLM
16h 54mLHR-GEG
£1,333
13/6Fri
multi-stopUnited Airlines
16h 25mBOI-LHR
17/6Tue
multi-stopUnited Airlines
19h 07mLHR-BOI
£1,370
17/6Tue
multi-stopLufthansa
18h 48mGEG-LCY
23/6Mon
multi-stopLufthansa
20h 03mLCY-GEG
£1,370
17/6Tue
multi-stopLufthansa
18h 48mGEG-LCY
23/6Mon
multi-stopLufthansa
20h 03mLCY-GEG
£1,371
13/6Fri
multi-stopAir Canada
18h 25mBOI-LHR
17/6Tue
multi-stopAir Canada
19h 56mLHR-BOI
£1,391

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Everything you need to know for your flight to the United Kingdom

Cabin class types available on flights to Idaho

Cabin classes available on flights to Idaho. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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