LHR - IDA

£719 Find Cheap Flights from London Heathrow Airport to Idaho Falls

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Idaho Falls departing on 18/2. 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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 25% or moreCompare multiple travel sites with one search.

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

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

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

Everything you should know

Cheapest return fare
£719
United Airlines
Wed 18/2Sun 22/2
LHR - IDA • 2 stops
Cheapest one-way flight
Multiple Airlines
Thu 29/1
LHR - IDA • multi-stop
Top airlines
United Airlines
Cheapest • from £719 (return)
Virgin Atlantic
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Start a new search
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, 18 Feb - Sun, 22 Feb
United Airlines Logo
06:30 - 09:48
LHR
-
IDA
34h 18m
2 stops
United Airlines Logo
14:40 - 09:40
IDA
-
LHR
12h 00m
1 stop
£719United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
06:30 - 09:48
LHR
-
IDA
34h 18m
2 stops
United Airlines Logo
14:40 - 08:30
IDA
-
LHR
34h 50m
2 stops
£742United Airlines
Sat, 14 Mar - Sat, 21 Mar
Multiple Airlines Logo
09:25 - 23:36
LHR
-
IDA
20h 11m
1 stop
Multiple Airlines Logo
14:18 - 12:15
IDA
-
LHR
15h 57m
1 stop
£813Multiple Airlines
Sat, 14 Mar - Sat, 21 Mar
American Airlines Logo
09:25 - 23:24
LHR
-
IDA
19h 59m
2 stops
American Airlines Logo
14:18 - 12:15
IDA
-
LHR
15h 57m
1 stop
£832American Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
07:30 - 09:48
LHR
-
IDA
33h 18m
2 stops
United Airlines Logo
17:33 - 09:40
IDA
-
LHR
33h 07m
1 stop
£839United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
07:30 - 09:48
LHR
-
IDA
33h 18m
2 stops
United Airlines Logo
17:33 - 09:40
IDA
-
LHR
33h 07m
1 stop
£842United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
07:30 - 09:48
LHR
-
IDA
33h 18m
2 stops
United Airlines Logo
17:33 - 12:50
IDA
-
LHR
36h 17m
2 stops
£843United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
07:30 - 09:48
LHR
-
IDA
33h 18m
2 stops
United Airlines Logo
17:33 - 12:50
IDA
-
LHR
36h 17m
2 stops
£847United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
11:35 - 20:58
LHR
-
IDA
16h 23m
1 stop
United Airlines Logo
17:33 - 09:40
IDA
-
LHR
33h 07m
1 stop
£861United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
11:35 - 20:58
LHR
-
IDA
16h 23m
1 stop
United Airlines Logo
17:33 - 09:40
IDA
-
LHR
33h 07m
1 stop
£865United Airlines
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 United Airlines (£719) and American Airlines (£832).

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

Cheapest flight£719
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 £719 for a return ticket.

  • 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 £933 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 £1,009 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 678 reviews
7.3Comfort
6.9Food
7.6Entertainment
8.2Crew
7.7Boarding
Airline reviews

Food has been disappointing in both legs of flight to india

10.0 ExcellentRanj, Nov 2025
DEL - LHR
Read more Virgin Atlantic reviews

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

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.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

This Japanese airline provides great service and very helpful in assisting their passengers.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

I so appreciate the crew members on each flight of United. They are outstanding.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

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

Information on your arrival and departure airports