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LON - IDA

Find cheap flights from London to Idaho Falls from £506

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Idaho Falls departing on 22/6. 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
Mon 20/5
Mon 27/5

Search hundreds of travel sites at once for deals on flights to Idaho Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Idaho Falls, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Idaho Falls, as well as popular online travel agencies
In the last 7 days, travellers have searched 44,212,662 times on KAYAK, and here's why:

Save 28% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from London to Idaho Falls (LON-IDA)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to Idaho Falls 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 and deals for you by selecting your travel dates.
Choose your dates
14:30 - 13:13LGW-IDA
29h 43m2 stops
07:34 - 08:35IDA-LGW
18h 01m2 stops
£835American Airlines
Find Deal
Tue, 11 Jun - Fri, 20 Sep
08:40 - 21:43LHR-IDA
20h 03m1 stop
07:34 - 06:50IDA-LHR
16h 16m2 stops
£881American Airlines
Find Deal
Tue, 11 Jun - Fri, 20 Sep
09:15 - 21:43LHR-IDA
19h 28m2 stops
07:34 - 09:05IDA-LHR
18h 31m2 stops
£883American Airlines
Find Deal
Tue, 11 Jun - Fri, 20 Sep
08:40 - 21:43LHR-IDA
20h 03m1 stop
13:43 - 10:40IDA-LHR
13h 57m1 stop
£897American Airlines
Find Deal
Tue, 11 Jun - Fri, 20 Sep

Flights from London to Idaho Falls - Travel Insights & Trends

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

What is the cheapest month to fly from London to Idaho Falls?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from London to Idaho Falls, 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 London to Idaho Falls is February, where tickets cost £612 on average. On the other hand, the most expensive months are August and June, where the average cost of tickets is £1,331 and £1,140 respectively.

Good to know - Cheap tickets from London to Idaho Falls

Low season

October

High season

July

Cheapest flight

£506
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly and prices are also 6% lower on average.
Flight from London Heathrow Airport to Idaho Falls

When to book flights from London to Idaho Falls

Are your dates flexible? Find out the best times to travel from London to Idaho Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Idaho Falls

  • What is the cheapest flight from London to Idaho Falls?

    In the last 3 days, the lowest price for a flight from London to Idaho Falls was £628 for a one-way ticket and £1,037 for a return.

  • Which airports will I be using when flying from London to Idaho Falls?

    On your way to Idaho Falls, you’ll fly out from one of these London airports: London Gatwick or London Heathrow. You’ll be landing at Idaho Falls Fanning Field.

  • Which aircraft models fly most regularly from London to Idaho Falls?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London to Idaho Falls?

    oneworld is the only airline alliance operating flights between London and Idaho Falls.

  • How does KAYAK find such low prices on flights from London to Idaho Falls?

    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 to Idaho Falls.

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

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

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

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

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

See more FAQs

Top 3 airlines serving from London to Idaho Falls

 
See real verified KAYAK customer reviews for airlines flying from London to Idaho Falls. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. 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 London to Idaho Falls? 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
FinnairOverall score based on 1390 reviews
7.0entertainment
7.8boarding
6.9food
7.6comfort
8.2crew
Airline reviews

Great flight- smooth, nice crew, nice clean aircraft, departed a little late but arrived 10 early.

10.0 ExcellentAnonymous, Apr 2024LHR - SFO
Read more about Finnair reviews

Great flight- smooth, nice crew, nice clean aircraft, departed a little late but arrived 10 early.

It was listed on my ticket as Finnair but there was no indication that the flight was Finnair. In fact the number was even different. There were no employees there until exactly 2 hours before so we had to wait in line at Iberia and hope

Sorting on line would have been appreciated Onward information on flights missed No ability to get seating arranged before we got to gate Very unfriendly at gate

The flight was Finnair but there was no indications anywhere that the checkin was for Finnair also. There was no one to ask. I think at a minimum they should list the code shares so people don’t stand in the wrong line for an hour.

Flight ok, but me and other two passengers didn’t have connection with the entertainment in our seats. So, no movies, no games, no music… for 9 hours. The crew just told us that there’s nothing they can do but I noticed during the flight that there were empty seats, so they could have offered to us to change seats. Customer service could be better.

Finnair cancelled my flight 12 hours prior to leaving for Helsinki. They stated there were mechanical problems. I had to scurry around to find a new flight that would meet my needs for arrival in Helsinki. Luckily I was able to find alternate transportation through Lufthansa/United.

I’m very disappointed, to fly into an airplane for 10 straight hours, and not having a TV even though when I put the ticket I was told that I will have entertainment for the TV. Very disappointed.

Helpful steward. Allowed me to move to some empty seats and I was able to get some sleep. He also had milk for my tea. Americans don’t realise that cream or half and half ruin tea.

Security was a mess at the Helsinki Airport. But I was delighted by the connecting flight waiting for us for JFK.

Very rude hostess. She embarrassed me in front of others. I went to sit after taking off in a different sit in the same economic cabin. Was the area where doors are. She come to me very laud and said: go back to your sit those sit are more expensive.wow! No diplomacy. Flight was super full except 3 of those sit. The only person in that row later during the flight occupied all sit laying down!. Once more disappointed at American Airlines. Early flight they lost my luggages for 4 days. Never refund money for replacement for some of essential items purchased..when I booked the flight I thought was Finlandair. I

Quick flight. But cabin crew were very noisy and talking too much, especially when we were seated at the back of the plane trying to sleep through the night .

My ticket was for Premium Economy and all the seats were taken, I was placed in Economy class and I’m looking for a refund.

Unfortunately delayed 2 hrs due to faulty tyre.. which had to be changed, but better safe than sorry.

The delay was an issue. Other than that. Every thing good

Hi vergin Atlantic service was good but the flight ticket agent travel up charge me extra 57 pounds as a airport charges, actually I refuse to pay but they say if I not pay £57 then they say you will not be able to travel from Heathrow to goa ,so for me there was no option and it was just 3 day before my departure so i paid, so please look in to the matter. And I have a receipt of £ 57 as well .thanks

Very good. Glad we had Premium for the flight out.

We flew Upper Class from London to The Turks and Caicos. Check in was amazing. Our ldriver too us directly to a special entrance to terminal 3. It took 10 minutes to check in and clear customs. Amazing! The VA lounge is large and comfortable. Boarding the flight was easy and without a wait. The crew was excellent. But the seats were awful, strange and uncomfortable. Having a comfortable flat bed seat is the reason we pays 1000s extra. The VA 787 uses a reverse herringbone configuration. Look it up. You have your back to the window and are facing the aisle with no privacy. Turning the seat into a bed requires assistance from the crew so not very spontaneous. . The food was ok. A bit tasteless and meager portions. Had to pay for WiFi. I believe VA has other configuration on their dream airbus flights. Lots of stuff about all this on YouTube where you can see what I have been describing. I can not recommend taking VA on a long flight with these seats.

From the start everything was perfectly fine. First meeting was fantastic. Breakfast needs a lot of work and food was overcooked and not very nice for breakfast.

Lots of legroom on the flight. No interaction from the staff at all on the plane. They only attended to the First Class passengers. There was no entertainment. Security I was body scanned even though I hadn't set off an alarm, my father-in-law in his 80s, was stopped and subjected to a through body search, told that they would have to place their hands in intimate places. There were several border guards present, and as we walked off we could hear the TWA officer talk about the procedure as if he was training. My father-in-law was a little upset about the whole process. A kind explanation would have been more acceptable, and it felt dehumanizing to him.

Needed a 6 hour lay over in Atlanta. How can this be avoided ?

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

Meals were adequate but could be better. Lots of movies, podcasts, tv shows. We really enjoyed using our personal headsets highly recommended. 15 hrs flight great to travel at night.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

flight delays, staff only communicating when pushed, food service lasting a grand total of 7 minutes, stuck in seat from 45mins into flight until landing

The crew was doing their best on an old plane needing updating. Chairs that creaked and wouldn’t stay in position. My tray table was unusable as was on-board entertainment due the audio needing usb earphones (that were not provided). Prior to boarding in Toronto and despite being scheduled for a wheelchair and assistance, we were dropped off by clubcar without a wheelchair which I found myself by a gate. Due to no boarding gate assigned at that time we waited and when it was, it subsequently was moved from 64 to 95. No help could be found so I pushed my husband’s chair to that furthest gate in the airport at the highest speed possible for a 73 year old. And by that I mean I ran. It was a very stressful experience.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

Wifi wasn't working on one of the UA flights after boarding.

they made me check my carryon. There was space in the overhead bins.

Nice flight, nice crew but no cookie or napkin with my seltzer.

Book cheap flights from London to Idaho Falls

Cheapest flights to Idaho Falls from London found in 2024

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from London to Idaho Falls found on KAYAK in the last 72 hours.
22/6Sat
3 stops
49h 12mLHR-IDA
£506
22/6Sat
2 stops
33h 17mLHR-IDA
£1,160
22/6Sat
1 stop
15h 33mLHR-IDA
£1,317

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London - Idaho Falls Flights

Destination:

Idaho Falls (IDA)United States

Cabin classes: