$579 Find Cheap Flights from the United Kingdom to Idaho

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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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41,299,237 searches in the past 7 days on KAYAK

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Useful Info
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 $1,373 and $1,151 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 26 weeks before departure.


Good to know

Low seasonFebruary
High seasonSeptember
Cheapest flight$579
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 13% 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 8696 reviews
6.6Food
7.7Boarding
8.1Crew
7.3Comfort
7.1Entertainment
Airline reviews

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

2.0 MediocreBrant, Apr 2025YHZ - EWR
Read more United Airlines reviews

Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy

A bit rush for transit. Food and entertainment are not available

So far so good but food and entertainment are not available for this flight

Multiple delays and not straight answer from the United team

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

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.
9/26Fri
2 stopsLufthansa
26h 55mLHR-BOI
10/6Mon
2 stopsLufthansa
18h 31mBOI-LHR
$775
9/26Fri
1 stopLufthansa
33h 54mLHR-BOI
10/6Mon
1 stopLufthansa
12h 47mBOI-LHR
$779
5/19Mon
1 stop
19h 37mLGW-GEG
5/26Mon
1 stop
19h 45mGEG-LGW
$789
5/19Mon
2 stops
19h 40mLGW-GEG
5/26Mon
1 stop
19h 45mGEG-LGW
$794
5/19Mon
1 stopVirgin Atlantic
13h 25mLHR-GEG
5/26Mon
1 stopVirgin Atlantic
16h 05mGEG-LHR
$842
10/24Fri
2 stopsUnited Airlines
20h 21mLHR-BOI
11/3Mon
1 stopUnited Airlines
19h 40mBOI-LHR
$860
5/19Mon
2 stopsVirgin Atlantic
19h 05mLHR-GEG
5/26Mon
1 stopVirgin Atlantic
15h 00mGEG-LHR
$866
6/9Mon
2 stopsUnited Airlines
17h 36mLHR-BOI
6/30Mon
1 stopUnited Airlines
16h 50mBOI-LHR
$894
6/13Fri
2 stopsDelta
16h 55mLHR-GEG
6/20Fri
2 stopsDelta
15h 35mGEG-LHR
$951
6/14Sat
2 stopsDelta
16h 26mLHR-GEG
6/21Sat
2 stopsDelta
18h 00mGEG-LHR
$954

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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.
8/16Sat
2 stops
48h 35mLGW-GEG
$579
8/14Thu
3 stops
32h 20mLCY-GEG
$581
9/11Thu
2 stopsWestJet
16h 49mLHR-BOI
$690
8/21Thu
2 stopsWestJet
14h 57mLHR-BOI
$790
9/11Thu
1 stopLufthansa
16h 49mLHR-BOI
$824
6/21Sat
2 stopsLufthansa
18h 32mLHR-BOI
$851
5/12Mon
2 stopsIcelandair
16h 19mLGW-GEG
$989
5/12Mon
2 stopsIcelandair
37h 21mLGW-GEG
$996
6/13Fri
1 stopUnited Airlines
28h 46mLHR-GEG
$3,311
6/14Sat
1 stopUnited Airlines
17h 23mLHR-GEG
$3,323

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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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