LON - IDA

£587 Find Cheap Flights from London 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 London to Idaho Falls departing on 17/3. 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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Everything you should know

Cheapest return fare
£735
KLM
Tue 17/3Tue 24/3
LHR - IDA • 2 stops
Cheapest one-way flight
Multiple Airlines
Sun 1/2
LON - IDA • multi-stop
Top airlines
KLM
Cheapest • from £735 (return)
Virgin Atlantic
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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 London to Idaho Falls (LON-IDA)

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

Recent return flight deals from London to Idaho Falls

Tue, 17 Mar - Tue, 24 Mar
KLM Logo
17:50 - 18:15
LHR
-
IDA
30h 25m
2 stops
KLM Logo
13:10 - 10:00
IDA
-
LHR
14h 50m
1 stop
£735KLM
Tue, 17 Mar - Tue, 24 Mar
Delta Logo
10:45 - 18:15
LHR
-
IDA
13h 30m
1 stop
Delta Logo
05:45 - 10:00
IDA
-
LHR
22h 15m
1 stop
£738Delta
Tue, 17 Mar - Tue, 24 Mar
Multiple Airlines Logo
11:55 - 17:19
LGW
-
IDA
35h 24m
2 stops
Multiple Airlines Logo
17:59 - 10:55
IDA
-
LGW
34h 56m
2 stops
£754Multiple 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
£841United 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
£844United 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
£846United 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
£849United 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
£854United 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
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
£873United Airlines
Booking Insights

KAYAK's insights & trends for London to Idaho Falls flights

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.

Which airlines provide the cheapest flights from London 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 to Idaho Falls were found on KLM (£735) and Delta (£738).

Good to know - Cheap tickets from London to Idaho Falls

Low seasonNovember
Cheapest flight£735
Best time to beat the crowds (22% less expensive on average)
Most popular time to fly (20% more expensive 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 £735 for a return ticket.

  • 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?

    SkyTeam, and Star Alliance are the airline alliances operating flights between London 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 £842 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 £1,060 and an overall rating of 7.4.

  • 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.

Reviews of the top airlines flying 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.
7.5
Virgin AtlanticOverall score based on 678 reviews
7.7Boarding
7.6Entertainment
6.9Food
7.3Comfort
8.2Crew
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.

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

The attendant on board was amazing. She should be doing business/first international long haul.

The boarding was cumbersome. The staff was not aligned. They called group 1 but then the agent said no. Then they called group 1 again but still would not board us. Then they called group 2 and they all came up and still hadn’t started boarding. Then someone came from the plane and said why is no one coming? And the agent said bc i thought not yet and she said I said over the walkie talkie to send the passengers down? What was not clear about that? Also, onboard, the crew gave announcements very ironic/authoritative, and in first class they gave us a cheesebox. My expectations based on competition airlines, is a warm meal. A little underwhelming.

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

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.

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

Information on your arrival and departure airports