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Find cheap flights from London Heathrow Airport to Idaho from $466

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Idaho departing on 8/27. 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
Thu 7/11
Thu 7/18

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Best Idaho Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Boise
Boise1 stop$857
Idaho Falls
Idaho Falls1 stop$1,025

Good to know

Low season

November

High season

June

Cheapest flight

$466
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from London to Boise

FAQs - booking Idaho flights

  • How does KAYAK find such low prices on flights from London Heathrow Airport 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 London Heathrow Airport to Idaho.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho from London Heathrow Airport 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 London Heathrow Airport 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 to Idaho with an airline and back to London Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport 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 to Idaho from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Idaho

  • Morning departure is around 14% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Heathrow to Idaho

Need help choosing which airline to fly with from Heathrow 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.
8.2
Singapore AirlinesOverall score based on 1417 reviews
8.4Boarding
8.2Entertainment
7.8Food
8.1Comfort
8.7Crew
Airline reviews

Leg room and flight sound insulation is very bad. They broke 3 of my bags with bad handling

8.0 ExcellentAnonymous, Jun 2024SFO - SIN
Read more about Singapore Airlines reviews

Leg room and flight sound insulation is very bad. They broke 3 of my bags with bad handling

Too many luggages for 1 passenger (4 bags) will make all the overhead luggage bins a challenge to fit them all. Some have oversized hand carry as in like back packer size bags shouldn’t be allowed as handcarry.

plus: service and personal assistance minus: online check-in did not work

My overall experience with Singapore Airlines is great. Will definitely fly Singapore airline again.

When boarding, after business class should be premium economy, but economy class already lined-up at the gate blocking premium economy to board. Singapore airline crew should done a better job to organize this chaos :( Thank you.

It seems paying premium economy does not make difference with economy. No priority boarding, not worthy paying extra$$$ for premium economy.

A pc of cake or biscuit at least. The airport was like a maze need to take another bus to the main terminal to immigration.

Perfect experience from boarding through to leaving the flight, comfortable and personalised service from all staff, highly recommended

They were able to assist my elderly father and myself after not being able to check in to scoot. The counter service was phenomenal. They did what they could to get us on the next plane so we could catch our Connecting flight. Scoot closed early on us so we ended up missing our flight.

They close their counter so early. I had internet issues so I couldn’t check In online . I would have made the flight but their counter was closed 5 minutes before we arrived. No way of contacting them even though I had the confirmation number and tried to check in the night before on someone else’s phone. I tried calling their customer service with no pick up. Horrible experience, I’m very unhappy with them. I hope to never fly with them ever again. It costed me almost $900.

Had some luggage loading delays but it was still a good experience

We bought the business class tickets. The check-in staff and onboard crew were excellent, providing commendable service throughout. However, it was disappointing to find that China Southern Airlines does not have a lounge at SFO. Instead, passengers were provided with a $35 per person food voucher, which fell short of expectations. Furthermore, the quality of the onboard food left much to be desired, marking a significant decline compared to our previous flight experience in 2019, prior to the pandemic.

Wuhan - Dubai. Old plane: 1. Only USB charger. No power outlet to plug in.. 2. Super narrow seat layout 3. Toilet cover consistently fell down and hit my back when sitting on it.. :( 4. Entertainment system touch screen not sensitive, and need to press hard or use finger tips to hit. Crew were very nice and accommodating though.

1. I got very poor check in experience with the counter lady . This is the first airline I ever experienced that no combine check in weight allow . Even we have 4 of us but weight counter by piece . So we wasted lot of time argue and repack . This is super crazy 2. Next I left my Samsung tablet on the plane . And I started to escalate and finally spoke to southern airline lost and found in Malaysia and the amazing answer she give is : system nothing found and please try to call southern airline in china 🧐 . I have been flying many other airlines but this is my first encounterment with such irresponsible airline response and no empathy given to customer . My feeling is nobody bother whether how customer like me feel and I’m just too small for the management to take note .

No red vine, no whiskey, no vodka. No that I wanted all of them at once but still...

During flight, some passengers perform stomping leg exercises which disturb the comfort (I.e. sleep) of other passengers.

No good but was short flight. Both of our China Southern flights were on time. No surprises.

The flight was okay it was the kayak customer service that was poor, I have been trying to change my name on my flight ticket 3 days before my flight and nothing got done about it even tho I messaged so many times and phoned, all I got in return was that is was being processed and still to this day nothing has been done about it, I think it’s disgusting and un needed stress to the trip.

The food was perfect. The boarding process is a bit long. Given the late boarding time, I felt very tired by the time I was seated.

Quality flight from start to finish. Customer service is evidently very important to this company. The staff really exceeded expectations.

There is very little in the title" Premium" in the Economy experience with Cathay, Melbourne to Hong Kong. The seats are uncomfortable and the cabin with outdated 1990's decor and trim. The food service was sloppy and the leg room providing little to no advantage over regular economy seating. Infact, the Sunday flight was not fill occupancy and I would have done better saving the significant additional costs for the PREMIUM ticket and taken advantage of the seating. If you are a regular premium economy traveler of EMIRATES expecting the same experience on CATHAY, you will be disappointed. Emirates far superior.

Bad experience. Departure time delayed from 1610 to 1740. After the flight was pushed back, pilot said there was a technical issue on the aircraft and we couldn’t take off. Delayed another hour to solve it.

Very comfortable Prem economy seats for a long haul flight. Had a problem with the tv that the crew fixed so was great!

I cancelled the flights in good time but could only get a partial refund. I was not warned of this.

Not good. Flight was purchased for my father who needed medical assistance to board and transfer due to a heart condition. No one at Hong Kong from Cathay was there to assist and he barely made the connection. When I talked to him he could barely breath and was not sure he was going to make it. Really poor service even though the ticket stated he needed a wheelchair assistance.

The boarding experience was as expected and went well. The plane's economy seating plan is not designed for a positive customer experience but rather for company profit. When the passenger in front of me reclined, the distance from the screen to my face was the span of my hand (thumb tip to pinky fingertip). There is no such thing as personal space in this setting. This results in the domino effect, for when I recline the person in back of me reclines and so it goes. This is not to say that reclining is the answer as the experience is not increased, but simply managed.

we were upgraded which was a blessing and tender mercy for us. I fell the day before and was in extreme pain from knee to shoulder. Sitting in a more comfortable seat during the flight was an unexpected blessing and experience.

The coffee in Premium economy and economy is terrible. That's it. Everything else is great

Very comfortable flights. Not so many new releases in terms of films.

Lounge in pukhet not good Very nice new aircraft Super crew as nearly always with Cathay

On the flight back the seats where very uncomfortable, they where so bad that my back started to hurt after the first 2 hours. I can sit in a wooden chair for 2 hours. But these where just horrible, it just shows how cheap the airline has become. And the cabin was heated all those people in a heated cabin during a night flight. It was clear the climate control was not working. To top that off you are not even offered a glass of water, these people are animals.

We purchased a Go First Pass for 10 Euros each so we could board first, but everyone was able to board at the same time so we wasted 20 Euros. The flight left ab out 15 minutes late and was not allowed to land at Healthrow so we had to circle Heathrow for about 45 minutes. This caused us to almost miss our flight from Heathrow to Atlanta.

Severely delayed with no notice. Could have arrived at the airport hours later had we been informed of the delay

Once the boarding sign went on and all passengers gathered in line, we were left waiting standing up for almost an hour because there was a delay.

It would be nice to have vegan options for meals. The entertainment was not working on the the way to Austria. It was only available near the end of flight to Canada. The service was excellent.

Flight was delayed by approx 1 hour. The boarding process and the flight itself were very good, slightly tight squeeze for my legs but overall happy.

The business class layout on this plane is tightly packed and atrocious with no sense of privacy.

Flight was meant to leave at 8:30pm but there was a 2 hour delay 😞

Airmalta does not include meals in their flights and neither offers entertainment.

Pros: "The crew was amazing and took measures to make the flight Covid safe"
Cons: "The food was not the best and Twistees weren't available. Also the seats felt narrow"

Every host and pilot were very professional. My next flight would be upgraded from economy to the next group.

My seat was in a good row. In our section it was the first row. But it was difficult tooperate seat entertainment features > table, screen, even though I often fly.

My worst flying experience so far. This flight was delayed a total of 42 hours and diverted to New York before it was finally cancelled. It was delayed 4 and a half hours in London. As we were scanning our boarding passes at the gate they advised that the flight was being diverted to JFK since the delays caused us to missed the open hours for Charlotte international customs and immigration. We were assured multiple times by airport personnel, flight attendants, and the Pilot that we would land at JFK go through customs and immigration and then reboard the plane to fly to Charlotte in the same night. When we landed in New York the pilot advised us as we were retrieving our carry on luggage that we were delayed till 10am the next morning and to see guest services to get a room for the night. During this time I had to purchase a room for a family member in Charlotte which drove over 4 and a half hours to pick us up from Charlotte. This could have been avoided if American Airlines had been up front about the delay. Then after standing in line for over 2 and a half hours at guest services we were taken by taxi to a hotel 30 minutes out of the way. Luckily I looked for other flights that night and found one at 8 am to get on. The initial flight which we were scheduled to fly to charlotte in was delayed 12 more times and was finally cancelled 42 hours after it was supposed to land. I am unaware of what happened to the guest that were supposed to fly on the flight after we were placed on another flight but 42 hours in delays for a direct flight is absolutely ridiculous.

Really quick check in and security at Heathrow Terminal 5. Staff on board were lovely and very friendly. Could have provided a few more drinks on the flight but they were available at the back of the plane.

Flight delayed an hour due to plane maintenance issues after getting in line to board. Issue was plane galley ovens which eliminated hot meals for overseas flight. Cold selections were limited due to availability. Drink and meal service (already an hour delayed) was very slow. Upon arrival in Nashville, had to sit at gate for about 15 minutes before disembarking with no explanation. Local police then boarded plane as we were disembarking so maybe that was the issue.

Boarding good. Seats uncomfortable when lie flat. Food was awful. Tasted stale and chicken was dry. No live tv or flight map. Had to pay for internet.

Poor technical details on this plane. 1) There was no WiFi on an 8 hour long-haul flight. So no work could be done. That's below the standard expected for airlines these days. 2) The power outlet at my seat was busted and not working. 3) The headphone jack was loose and I had to keep adjusting my headphones to get good reception, or when it slipped out. - The flight was delayed to due mechanics. Sometimes this can't be avoided, I understand, and it's a big inconvenience to arrive that much later when traveling across time zones (then arriving at 4am from the prior time zone). - Also unique to this flight, the northern lights were visible on the right side of the aircraft, but I only found out after we landed (b/c again no wifi). I understand there are considerations about people being out of their seats to look, but I feel extremely disappointed and resentful that I wasn't told so that I could have a chance to look at this probably once-in-a-lifetime cosmic event from a view in the sky. - Flight crew was otherwise friendly and helpful.

I would have preferred something lighter for the second meal. Maybe a small sandwich .

They cancelled our flight the morning of departure at 4:30am.

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

Book cheap flights from London to Idaho

Recent round-trip flight deals

11/1Fri
1 stopFinnair
29h 50mLHR-JAC
11/15Fri
1 stopFinnair
33h 30mJAC-LHR
$730
9/7Sat
1 stopLufthansa
15h 15mLHR-BOI
9/28Sat
2 stopsLufthansa
14h 51mBOI-LHR
$857
7/1Mon
1 stopDelta
23h 48mLHR-GEG
9/25Wed
1 stopDelta
25h 50mGEG-LHR
$867
9/4Wed
2 stopsLufthansa
18h 10mLHR-BOI
9/12Thu
1 stopLufthansa
18h 45mBOI-LHR
$886
7/1Mon
2 stopsDelta
19h 18mLHR-GEG
9/25Wed
2 stopsDelta
16h 41mGEG-LHR
$903
8/25Sun
1 stopFinnair
27h 04mLHR-JAC
9/3Tue
1 stopFinnair
15h 20mJAC-LHR
$915
7/3Wed
1 stopAir France
13h 20mLHR-GEG
7/12Fri
2 stopsAir France
23h 15mGEG-LHR
$938
7/9Tue
2 stopsAmerican Airlines
32h 44mLHR-IDA
7/16Tue
2 stopsAmerican Airlines
20h 40mIDA-LHR
$1,055
7/9Tue
2 stopsAmerican Airlines
32h 44mLHR-IDA
7/16Tue
1 stopAmerican Airlines
21h 20mIDA-LHR
$1,057
7/18Thu
2 stopsAir France
17h 23mLHR-JAC
7/31Wed
1 stopAir France
15h 30mJAC-LHR
$1,543

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Recent one-way flight deals

8/27Tue
3 stops
34h 59mLHR-BOI
$466
8/28Wed
3 stops
35h 24mLHR-BOI
$475
6/18Tue
3 stops
58h 27mLHR-BOI
$523
7/23Tue
3 stops
40h 56mLHR-BOI
$669
10/2Wed
2 stopsIcelandair
17h 38mLHR-BOI
$811
10/2Wed
2 stopsIcelandair
17h 38mLHR-BOI
$812
9/5Thu
1 stopFinnair
27h 21mLHR-JAC
$948
9/6Fri
1 stopFinnair
29h 55mLHR-JAC
$985
9/5Thu
2 stopsLufthansa
16h 53mLHR-JAC
$1,782
10/2Wed
2 stopsAmerican Airlines
18h 41mLHR-BOI
$3,346

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Last minute flights from Heathrow to Idaho

Last minute flight, train and bus deals

6/16Sun
multi-stop
37h 30mLHR-IDA
9/30Mon
multi-stop
20h 44mIDA-LHR
$1,204
6/16Sun
multi-stop
17h 52mLHR-IDA
9/30Mon
multi-stop
31h 14mIDA-LHR
$1,349
6/16Sun
multi-stop
27h 30mLHR-IDA
9/30Mon
multi-stop
20h 44mIDA-LHR
$1,411
6/12Wed
multi-stopUnited Airlines
15h 10mLHR-GEG
6/19Wed
multi-stopUnited Airlines
31h 12mGEG-LHR
$1,452
6/13Thu
multi-stopUnited Airlines
23h 40mLHR-GEG
6/20Thu
multi-stopUnited Airlines
21h 56mGEG-LHR
$1,480
6/13Thu
multi-stopUnited Airlines
14h 17mLHR-GEG
6/20Thu
multi-stopUnited Airlines
21h 56mGEG-LHR
$1,490
6/16Sun
multi-stopAmerican Airlines
32h 03mLHR-IDA
9/30Mon
multi-stopAmerican Airlines
20h 10mIDA-LHR
$1,565
6/16Sun
multi-stopAmerican Airlines
32h 03mLHR-IDA
7/16Tue
multi-stopAmerican Airlines
20h 40mIDA-LHR
$1,642
6/12Wed
multi-stopAmerican Airlines
18h 30mLHR-GEG
6/18Tue
multi-stopAmerican Airlines
18h 00mGEG-LHR
$1,705
6/16Sun
multi-stopAmerican Airlines
17h 01mLHR-GEG
6/22Sat
multi-stopAmerican Airlines
25h 07mGEG-LHR
$1,782

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London Heathrow Airport - Idaho Flights

Departure:

London Heathrow Airport (LHR)United Kingdom

Return flight deals:

Idaho - London Heathrow Airport

Cabin classes: