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IDA - LHR

$634 Find cheap flights from Idaho Falls to London

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho Falls to London departing on 10/1. 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
Sat 6/29
Sat 7/6

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to London, 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 Idaho Falls to London, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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

 
These are the cheapest deals for flights from Idaho Falls to London currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Idaho Falls to London

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Idaho Falls to London.

Recent one-way flight deals from Idaho Falls to London

Only flying one-way? Below are some of the best one-way flight deals from Idaho Falls to London found on KAYAK recently.

Recent last minute flight deals from Idaho Falls to London

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Idaho Falls to London.

Recent direct flight deals from Idaho Falls to London

The latest deals for direct flights from Idaho Falls to London so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Idaho Falls to London

Find recent round-trip train or bus tickets from Idaho Falls to London.

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
10:55 am - 12:20 pmIDA-LHR
18h 25m1 stop
7:40 am - 8:53 pmLHR-IDA
19h 13m2 stops
$634United Airlines
Find Deal
Tue, Oct 1 - Thu, Oct 31
10:55 am - 10:40 amIDA-LHR
16h 45m2 stops
7:40 am - 8:53 pmLHR-IDA
19h 13m2 stops
$639United Airlines
Find Deal
Tue, Oct 1 - Thu, Oct 31
10:55 am - 9:40 amIDA-LHR
15h 45m1 stop
11:35 am - 8:53 pmLHR-IDA
15h 18m1 stop
$648United Airlines
Find Deal
Tue, Oct 1 - Thu, Oct 31
7:00 am - 10:50 amIDA-LHR
20h 50m1 stop
1:05 pm - 9:05 pmLHR-IDA
15h 00m1 stop
$683
Find Deal
Tue, Sep 17 - Thu, Oct 17
1:42 pm - 12:10 pmIDA-LHR
15h 28m2 stops
10:30 am - 9:05 pmLHR-IDA
17h 35m1 stop
$686American Airlines
Find Deal
Tue, Sep 17 - Thu, Oct 17
10:40 am - 11:10 amIDA-LHR
17h 30m2 stops
7:25 am - 9:44 amLHR-IDA
33h 19m2 stops
$694United Airlines
Find Deal
Tue, Sep 17 - Thu, Oct 17

Good to know

Cheapest flight

$634
Flight from Idaho Falls to London

When to book flights from Idaho Falls to London

Are your dates flexible? Find out the best times to travel from Idaho Falls to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 Idaho Falls to London flights

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

    In the last 3 days, the lowest price for a flight from Idaho Falls to London Heathrow Airport was $634 for a round-trip ticket.

  • Do I need a passport to fly between Idaho Falls and London?

    Yes

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

    When flying out of Idaho Falls you will be using Idaho Falls Fanning Field. You will be landing at London, also known as London Heathrow.

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

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

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

    Star Alliance, and oneworld are the airline alliances operating flights between Idaho Falls and London, with oneworld being the most commonly used for this route.

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

    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 Idaho Falls to London.

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

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

    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 London with an airline and back to Idaho Falls with another airline. Booking your flights between Idaho Falls and LHR can sometimes prove cheaper using this method.

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

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

See more FAQs

Top airlines flying from Idaho Falls to London

 
See real verified KAYAK customer reviews for airlines flying from Idaho Falls to London. 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 Idaho Falls to London? 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.
8.0
DeltaOverall score based on 10457 reviews
7.4Food
7.9Comfort
8.6Crew
8.2Boarding
8.0Entertainment
Airline reviews

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

10.0 ExcellentAnonymous, May 2024MSP - YVR
Read more about Delta reviews

I've flown many many times on Northwest and then Delta. The crew on this flight were absolutely the best I've had the pleasure of being looked after by.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Half the bathrooms assigned to economy were out of action

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

We liked the fully reclinable seats. Had center seats, so it was difficult to talk to spouse. Crew was great

Aisle chair was good and liked the foot bar preventing you from putting your foot in the isle, The breakfast on this international flight to Zurich was horrible (Europeans, specially, used to good food) may make this a dealbreaker for booking with United Airlines again. I agreed with my Spanish fellow passenger.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

There was no screens on board AND the WiFi didn’t work. My seat was broken and couldn’t recline so I couldn’t even sleep. The flight attendants didn’t offer anything to make it more comfortable. It was such an old cramped plane, when the person in front of me reclined I couldn’t even open my tray table. All the United ads talk about guaranteeing everyone gets a screen!

The Wi-Fi was unavailable on this flight for some reason.

The flight was delayed almost 2 hours. Bad customer service etc. I will never fly Luthansa. Ever!!!

On time take off…US cabins look tired and need of refresh!

Fine. Though no food or entertainment so the survey needs to be updated with those options.

Backpack should NOT allowed put in the flight bin , only put it under the seat. I can't find space put my carry on luggage!!! and I pay for it ! that was very bad experience

Idaho Falls - London Flights

Departure:

Idaho Falls (IDA)United States

Destination:

London (LHR)United Kingdom

Return flight deals:

London - Idaho Falls

Cabin classes:

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