$544 Find Cheap Flights from the United Kingdom to Idaho

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Idaho

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Idaho, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Idaho, as well as popular online travel agencies
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Useful Info

KAYAK's insights & trends for flights to Idaho

Get data-powered insights and trends for flights to Idaho to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from the United Kingdom to Idaho, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from the United Kingdom to Idaho is January, when tickets cost $749 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of round-trip tickets is $1,392 and $1,154 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Idaho, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from the United Kingdom to Idaho, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.


Good to know

Low seasonFebruary
High seasonSeptember
Cheapest flight$544
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from London Gatwick Airport to Spokane

FAQs for booking flights from the United Kingdom to Idaho

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

    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 the United Kingdom to Idaho.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from the United Kingdom to 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 the United Kingdom to Idaho?

    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 from the United Kingdom to Idaho 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 the United Kingdom to Idaho?

    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 the United Kingdom to Idaho 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 Idaho?

    Based on KAYAK data, the cheapest day to fly to Idaho is Thursday where round-trip tickets can be as cheap as $907. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $1,365 on average.

  • What is the cheapest time of day to fly to Idaho?

    The cheapest time of day to fly to Idaho is generally in the afternoon, when round-trip flights cost $1,053 on average. The most expensive time of day to fly to Idaho is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,056.

Top airline flying from the United Kingdom to Idaho

 
See real verified KAYAK customer reviews for airlines flying to Idaho. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United Kingdom to Idaho. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from the United Kingdom to Idaho? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8801 reviews
8.1Crew
7.0Entertainment
7.7Boarding
6.6Food
7.3Comfort
Airline reviews

Gate agent did not hold flight for connection, provided no assistance to get new flight

2.0 MediocreJack, Jun 2025SAT - IAH
Read more United Airlines reviews

Gate agent did not hold flight for connection, provided no assistance to get new flight

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

United airlines, mediocre at best. No issues , nothing great . Worked for me

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Book cheap flights from the United Kingdom to Idaho

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Idaho found on KAYAK in the last 72 hours.
9/6Sat
2 stopsLufthansa
21h 38mLHR-GEG
9/20Sat
1 stopLufthansa
14h 42mGEG-LHR
$632
9/6Sat
2 stopsUnited Airlines
21h 33mLHR-GEG
9/20Sat
2 stopsUnited Airlines
17h 30mGEG-LHR
$634
8/28Thu
1 stop
32h 50mLGW-GEG
9/4Thu
1 stop
20h 30mGEG-LGW
$646
9/6Sat
1 stop
17h 38mLHR-GEG
9/20Sat
1 stop
12h 02mGEG-LHR
$650
9/26Fri
2 stopsAir Canada
32h 07mLHR-BOI
10/6Mon
2 stopsAir Canada
32h 56mBOI-LHR
$790
9/22Mon
1 stopDelta
17h 08mMAN-BOI
10/13Mon
2 stopsDelta
18h 55mBOI-MAN
$902
9/22Mon
1 stopDelta
17h 08mMAN-BOI
10/13Mon
1 stopDelta
26h 05mBOI-MAN
$907
7/1Tue
1 stopVirgin Atlantic
13h 25mLHR-GEG
7/16Wed
1 stopVirgin Atlantic
14h 48mGEG-LHR
$909
8/28Thu
2 stopsAir Canada
19h 44mLHR-BOI
9/6Sat
2 stopsAir Canada
29h 51mBOI-LHR
$919
9/22Mon
2 stopsVirgin Atlantic
17h 59mLHR-JAC
10/3Fri
2 stopsVirgin Atlantic
18h 10mJAC-LHR
$974

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Idaho found on KAYAK in the last 72 hours.
12/13Sat
3 stops
57h 48mLGW-GEG
$544
9/11Thu
2 stopsLufthansa
17h 29mLHR-BOI
$696
9/11Thu
1 stopLufthansa
13h 24mLHR-BOI
$730
9/11Thu
2 stopsLufthansa
17h 29mLHR-BOI
$746
6/21Sat
1 stopAir New Zealand
16h 24mLHR-BOI
$870
6/24Tue
2 stopsIcelandair
16h 19mLGW-GEG
$924
6/24Tue
2 stopsIcelandair
16h 19mLGW-GEG
$959
6/21Sat
1 stopFinnair
21h 09mLHR-BOI
$971
7/29Tue
1 stopUnited Airlines
36h 12mLHR-GEG
$3,359
7/20Sun
3 stopsUnited Airlines
32h 33mLHR-JAC
$13,258

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Last minute flights to Idaho

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Idaho that are departing in the next 10 days.
6/18Wed
multi-stopKLM
18h 02mLHR-BOI
6/23Mon
multi-stopKLM
13h 50mBOI-LHR
$1,371
6/18Wed
multi-stopLufthansa
13h 36mLHR-BOI
6/23Mon
multi-stopLufthansa
12h 05mBOI-LHR
$1,413
6/18Wed
multi-stopLufthansa
15h 42mLHR-BOI
6/23Mon
multi-stopLufthansa
29h 08mBOI-LHR
$1,415
6/18Wed
multi-stopIcelandair
31h 30mLGW-BOI
6/23Mon
multi-stopIcelandair
34h 54mBOI-LGW
$1,759
6/18Wed
multi-stopIcelandair
55h 30mLGW-BOI
6/23Mon
multi-stopIcelandair
34h 54mBOI-LGW
$1,893
6/18Wed
multi-stopScandinavian Airlines
23h 21mLHR-BOI
6/23Mon
multi-stopScandinavian Airlines
19h 00mBOI-LHR
$1,948
6/18Wed
multi-stopScandinavian Airlines
22h 56mLHR-BOI
6/23Mon
multi-stopScandinavian Airlines
20h 40mBOI-LHR
$2,277
6/18Wed
multi-stopScandinavian Airlines
22h 56mLHR-BOI
6/23Mon
multi-stopScandinavian Airlines
21h 50mBOI-LHR
$2,399
6/18Wed
multi-stopLufthansa
19h 41mLCY-BOI
6/23Mon
multi-stopLufthansa
17h 00mBOI-LCY
$3,634
6/18Wed
multi-stopLufthansa
19h 41mLCY-BOI
6/23Mon
multi-stopLufthansa
17h 00mBOI-LCY
$4,624

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Everything you need to know for your flight to Idaho

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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