£383 Find Cheap Flights to Idaho

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from the United Kingdom to Idaho departing on 2/5. 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
1 adult, Economy, 0 bags

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These are the airlines KAYAK users have selected most often from within our search results for flights to Idaho
These are the airlines KAYAK users have selected most often from within our search results for flights to Idaho
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Cheap Flights to Idaho

Cheapest return prices found by our users on KAYAK in the last 72 hours
Boise
Boise2 stops£480
Hailey
Hailey2 stops£709
Boise
Boise2 stops£480
Hailey
Hailey2 stops£709

Book Cheap Idaho Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Idaho that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Idaho

Mon, 9 Feb - Mon, 16 Feb
Multiple Airlines Logo
12:15 - 23:59LHR-BOI
18h 44m2 stops
Multiple Airlines Logo
06:28 - 10:50BOI-LHR
21h 22m2 stops
£480Multiple Airlines
Find Deal
Mon, 9 Feb - Mon, 16 Feb
Multiple Airlines Logo
12:15 - 23:59LHR-BOI
18h 44m2 stops
Multiple Airlines Logo
06:28 - 10:50BOI-LHR
21h 22m2 stops
£509Multiple Airlines
Find Deal
Tue, 9 Dec - Mon, 15 Dec
United Airlines Logo
06:35 - 09:59LHR-BOI
34h 24m2 stops
United Airlines Logo
12:16 - 11:05BOI-LHR
15h 49m2 stops
£550United Airlines
Find Deal
Tue, 9 Dec - Mon, 15 Dec
United Airlines Logo
06:35 - 13:39LHR-BOI
38h 04m2 stops
United Airlines Logo
14:49 - 09:40BOI-LHR
11h 51m1 stop
£551United Airlines
Find Deal
Mon, 8 Dec - Mon, 15 Dec
Lufthansa Logo
11:35 - 18:07LHR-BOI
13h 32m1 stop
Lufthansa Logo
14:49 - 09:40BOI-LHR
11h 51m1 stop
£562Lufthansa
Find Deal
Mon, 8 Dec - Mon, 15 Dec
Lufthansa Logo
11:35 - 19:43LHR-BOI
15h 08m1 stop
Lufthansa Logo
14:49 - 09:40BOI-LHR
11h 51m1 stop
£570Lufthansa
Find Deal
Mon, 8 Dec - Tue, 23 Dec
Virgin Atlantic Logo
20:00 - 22:49LHR-GEG
34h 49m2 stops
Virgin Atlantic Logo
13:15 - 10:00GEG-LHR
12h 45m1 stop
£641Virgin Atlantic
Find Deal
Mon, 8 Dec - Tue, 23 Dec
Virgin Atlantic Logo
11:05 - 20:10LHR-GEG
17h 05m1 stop
Virgin Atlantic Logo
13:15 - 10:00GEG-LHR
12h 45m1 stop
£645Virgin Atlantic
Find Deal
Sun, 23 Nov - Tue, 9 Dec
KLM Logo
20:25 - 14:40LHR-SUN
25h 15m2 stops
KLM Logo
07:30 - 07:05SUN-LHR
16h 35m2 stops
£731KLM
Find Deal
Fri, 21 Nov - Tue, 9 Dec
KLM Logo
17:05 - 14:40LHR-SUN
28h 35m2 stops
KLM Logo
07:30 - 07:05SUN-LHR
16h 35m2 stops
£761KLM
Find Deal
Booking Insights

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 £577 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of round-trip tickets is £871 and £855 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 a flight from the United Kingdom to Idaho, you should book around 2 weeks before departure, which saves you about 38% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know - Cheap tickets to Idaho

Low seasonJanuary
Cheapest flight£383
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly and prices are also 9% lower on average.
Flight from London Heathrow Airport to Spokane

FAQs - booking Idaho flights

  • 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 travellers 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 return 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 Wednesday when return tickets can be as cheap as £689. On the other hand, the most expensive day to fly is Sunday, when return prices are £968 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 retur flights cost £664 on average. Morning departures are around 21% cheaper than evening flights, on average. The most expensive time of day to fly to Idaho is generally at night, which is peak travel time and where the average cost of a ticket is £860.

Top tips for finding cheap flights to Idaho

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Idaho flight deals.

Reviews of the top 5 airlines flying 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.
7.7
KLMOverall score based on 1405 reviews
7.3Food
7.7Comfort
7.8Boarding
8.4Crew
7.1Entertainment
Airline reviews

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

2.0 MediocreElizabeth, Oct 2025CDG - AMS
Read more KLM reviews

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

Klm start boarding while somw air issue in the plan

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Great crew - old style upper class seats on the older fleet now feels dated

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

Food was excellent. Service was very good. Staff was very helpful to all passengers.

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

Very disappointed with food service. They ran out of entree selections- so for the last 10 rows only option was lentil stew. Not a fan. Then the morning service (pizza twist) was lukewarm at best- I exited my 12 hour flight having eaten a roll and dessert. They knew it was a full flight.

Premium Plus is a really good idea for longer flights

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

Not enough veg food available for passengers. I actually did not get the veg food and was told it was over, and I starved the entire flight duration.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Flight left on time. Boarding was easy. Arrived to EWR 30 mins early. Luggage was deplaned in good time. Overall a very good experience.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

The person I bought the ticket for didn’t make the flight.

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

It was good. The air plane is clean and staff were friendly.

The crew was wonderful at check in, the gate and on board. Felt the luggage had more room than the passengers. The seats were smaller than most domestic U.S. airlines. I'm only 5'2" and I had little legroom. There were only 2 bathrooms in coach. Needed more. The flight was very smooth but not the most comfortable.

There was no lounge at Boston for us to use. Typically flying first class overseas comes with lounge privileges. The seats did not recline even a little. My headset only worked on one side. I felt like I was flying on Ryan Air, not Icelandic Air.

Boarded with no problems. Sat on the tarmac for an hour before taking off. We were the last ones on our connecting flight. Didn't think we were going to make it. Our flight to Iceland was similarly delayed. When we've flown other airlines, pilots have tried to make up time while in the air. This doesn't seem to be something that Icelandair does. We made all of our flights, but it was stressful and we didn't think it was going to happen based on the time we arrived.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

Smooth flight with enough time for connection. Ran out of meal options. In-flight and gate staff were friendly and helpful. Good service overall.

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

Give yourself over 2+ hours layover because if flight is slighlty delayed and you miss your connection, Lufthansa will do nothing for you

We would have missed our connection from Munich to Boston but we had a van outside the plan that wisked us to our terminal. Much appreciated and we didn’t even realize that Lufthansa had done this until the announcement on disembarkation. Well organized airline! Will definitely fly Lufthansa again!!!

Everything went well. I will fly with Lufthansa again. And use Kayak whenever I book flights

Bought a seat in a flight that got changed out so ended up paying for a seat I would have had if I hadn't paid.

Food was poor quality and the screens for entertainment didn’t work properly

Food was much better than my outbound flight. On-time. Good service. I had a problem with my entertainment screen, but the attendant fixed it promptly.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

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.