LHR - IDA

£524 Find Cheap Flights from London Heathrow Airport to Idaho Falls

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 Falls departing on 20/6. 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
1 adult, Economy, 0 bags

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

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Everything you should know

Cheapest return fare
£770
American Airlines
Wed 2/9Thu 17/9
LHR - IDA • 2 stops
Cheapest one-way flight
£524
Multiple Airlines
Sat 20/6
LHR - IDA • 2 stops
Top airlines
American Airlines
Cheapest • from £770 (return)
Virgin Atlantic
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Heathrow and Idaho Falls. You’ll need at least 1 connection.
Insights
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Insights
Top stopover airports
Dallas (DFW)
Cheapest • Avg £771 (return)
Denver (DEN)
Shortest trip • 12h 56m (one-way)
Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Idaho Falls!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Heathrow to Idaho Falls (LHR-IDA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow 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 for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Idaho Falls

Wed, 2 Sep - Thu, 17 Sep
American Airlines Logo
09:45 - 21:22
LHR
-
IDA
18h 37m
2 stops
American Airlines Logo
07:00 - 11:45
IDA
-
LHR
21h 45m
2 stops
£770American Airlines
Mon, 7 Sep - Sun, 13 Sep
Delta Logo
06:30 - 22:14
LHR
-
IDA
22h 44m
2 stops
Delta Logo
18:50 - 10:00
IDA
-
LHR
32h 10m
1 stop
£786Delta
Thu, 16 Apr - Thu, 23 Apr
Virgin Atlantic Logo
10:55 - 22:40
LHR
-
IDA
18h 45m
1 stop
Virgin Atlantic Logo
13:09 - 14:00
IDA
-
LHR
17h 51m
2 stops
£798Virgin Atlantic
Sun, 3 May - Sun, 10 May
KLM Logo
11:45 - 22:40
LHR
-
IDA
17h 55m
2 stops
KLM Logo
18:54 - 10:00
IDA
-
LHR
32h 06m
1 stop
£799KLM
Fri, 4 Sep - Mon, 14 Sep
American Airlines Logo
10:05 - 21:22
LHR
-
IDA
18h 17m
1 stop
American Airlines Logo
12:12 - 09:05
IDA
-
LHR
13h 53m
1 stop
£800American Airlines
Sat, 5 Sep - Wed, 16 Sep
Multiple Airlines Logo
21:25 - 14:27
LHR
-
IDA
48h 02m
2 stops
Multiple Airlines Logo
16:00 - 11:55
IDA
-
LHR
36h 55m
2 stops
£803Multiple Airlines
Fri, 4 Sep - Tue, 15 Sep
American Airlines Logo
08:15 - 21:22
LHR
-
IDA
20h 07m
2 stops
American Airlines Logo
14:20 - 14:25
IDA
-
LHR
17h 05m
1 stop
£808American Airlines
Sun, 3 May - Sun, 10 May
KLM Logo
10:55 - 18:17
LHR
-
IDA
14h 22m
1 stop
KLM Logo
18:54 - 10:00
IDA
-
LHR
32h 06m
1 stop
£809KLM
Sat, 5 Sep - Wed, 16 Sep
Virgin Atlantic Logo
10:55 - 18:14
LHR
-
IDA
14h 19m
1 stop
Virgin Atlantic Logo
13:10 - 17:35
IDA
-
LHR
21h 25m
2 stops
£811Virgin Atlantic
Thu, 16 Apr - Thu, 23 Apr
Delta Logo
06:30 - 22:40
LHR
-
IDA
23h 10m
2 stops
Delta Logo
05:47 - 13:05
IDA
-
LHR
24h 18m
2 stops
£814Delta
Booking Insights

KAYAK’s insights & trends for Heathrow to Idaho Falls flights

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

Which airlines provide the cheapest flights from London Heathrow Airport to Idaho Falls?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest return tickets from London Heathrow Airport to Idaho Falls were found on American Airlines (£770) and Delta (£786).

Find deals

Good to know - Cheap tickets from London Heathrow Airport to Idaho Falls

Cheapest flight£524
Flight from London Heathrow Airport to Idaho Falls

When to book flights from Heathrow to Idaho Falls

Are your dates flexible? Find out the best times to travel from Heathrow 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 London Heathrow Airport to Idaho Falls flights

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

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Idaho Falls was £524 for a one-way ticket and £770 for a return.

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

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

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

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

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

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

  • Which is the best airline for flights from London to Idaho Falls, Virgin Atlantic or United Airlines?

    The two airlines most popular with KAYAK users for flights from London to Idaho Falls are Virgin Atlantic and United Airlines. With an average price for the route of £860 and an overall rating of 7.5, Virgin Atlantic is the most popular choice. United Airlines is also a great choice for the route, with an average price of £1,043 and an overall rating of 7.4.

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

  • 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 Falls?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from London Heathrow Airport 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 London Heathrow Airport 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 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 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 Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Heathrow 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 Heathrow 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.
7.5
Virgin AtlanticOverall score based on 682 reviews
8.2Crew
7.3Comfort
7.7Boarding
6.9Food
7.6Entertainment
Airline reviews

My seat 3G did not go down fully and the buttons were not working properly

8.0 ExcellentAditya, Feb 2026
LHR - JFK
Read more Virgin Atlantic reviews

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

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

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

The economy seats on the 777 was not as cramped as I had feared, but the food was terrible.

Experience was great - no complaints. Took off on time, landed early. Got to the gate relatively quickly - took a little bit of extra time to deplane but nothing excessive.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.

Terrible experience! delay 2 time and say i dont have ticket

Everything you need to know for your flight from Heathrow to Idaho Falls

Information on your arrival and departure airports

London Heathrow Airport (LHR)
Idaho Falls (IDA)