Question 1

What are the cheapest airlines flying from London Heathrow Airport to Idaho Falls round-trip?

Accepted Answer

Our cheapest airline available from London Heathrow Airport to Idaho Falls is American Airlines. Our recent data shows that you can find tickets from as low as £645 on this airline. Additional options worth looking into are Delta and Lufthansa, starting at £653 and £875 round-trip. Users have found that American Airlines is 23% cheaper than the other options available to this destination.

Question 2

What is the cheapest day to fly from London Heathrow Airport to Idaho Falls?

Accepted Answer

Travellers seeking maximum savings on their London Heathrow Airport to Idaho Falls flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 3

E

Accepted Answer

In terms of precipitation, rainfall in Idaho Falls ranges from 15.0 - 51.0 inches per month. May is typically the wettest month, when rainfall can reach 51.0 mm. July is typically the driest time to visit Idaho Falls when rainfall is around 15.0 mm.

Question 4

E

Accepted Answer

If weather is an important factor for your trip to Idaho Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

Question 5

What are the most popular airlines that fly from London Heathrow Airport to Idaho Falls?

Accepted Answer

When booking a flight from London Heathrow Airport to Idaho Falls, you may want to consider flying on KLM, United Airlines or Virgin Atlantic as they are the most popular for this route.

Question 6

What is the cheapest day to fly round-trip from London Heathrow Airport to Idaho Falls?

Accepted Answer

Friday flights are found to be more expensive to fly from London Heathrow Airport to Idaho Falls. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Idaho Falls.

Question 7

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

Accepted Answer

Flights from London Heathrow Airport to Idaho Falls lean towards being more expensive in May. Prices are generally better when you fly from London Heathrow Airport to Idaho Falls in November, with the cheapest ticket starting at £621.

Question 8

What is the cheapest time of day to fly from LHR to IDA?

Accepted Answer

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Idaho Falls in the morning. If you’re flexible enough to do this you can expect to save up to 7% on your trip compared to booking a flight at midday.

Question 9

What airport do you fly into for flights to Idaho Falls from London Heathrow?

Accepted Answer

Located just 3.8 mi from the city center, Idaho Falls Fanning Field is the airport most travelers will use when flying to Idaho Falls from London Heathrow. Booking flights from London Heathrow to Fanning Field (IDA) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 3 different airlines.

Question 10

Can I find deals for flights from Heathrow to Idaho Falls that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Heathrow to Idaho Falls flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 11

How can I find direct flights from Heathrow to Idaho Falls?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Idaho Falls.

Question 12

Can I find deals for business class flights from Heathrow to Idaho Falls?

Accepted Answer

Yes. Cheapflights offers flight deals from Heathrow to Idaho Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 13

How does Cheapflights help users find flights from Heathrow to Idaho Falls?

Accepted Answer

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Idaho Falls from Heathrow today with Cheapflights!

Question 14

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Idaho Falls?

Accepted Answer

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Idaho Falls by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Question 15

Can Cheapflights find flights from Heathrow to Idaho Falls with no change fees?

Accepted Answer

Need flexible booking options for your flight to Idaho Falls from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Question 16

Can Cheapflights notify me if prices for flights from Heathrow to Idaho Falls become cheaper?

Accepted Answer

Of course! You can now track prices for flights from Heathrow to Idaho Falls and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

Round-trip from	£645
Popular in	July
Cheapest in	February
Average price	£1,230

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest£578	Average£646	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Virgin Atlantic	Cheapest£634	Average£936	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
United Airlines	Cheapest£723	Average£987	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Cheap flights from London Heathrow Airport to Idaho Falls from £645

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/11. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapest flights from Heathrow to Idaho FallsExplore the most affordable flight options available from Heathrow to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 July 2025.

Explore the most affordable flight options available from Heathrow to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 July 2025.

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Best time to book a flight from Heathrow to Idaho Falls

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Related info for your journey

Find useful and relevant information for your journey from Heathrow to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Idaho Falls from London Heathrow?

What are the cheapest airlines flying from London Heathrow Airport to Idaho Falls round-trip?

Can I find deals for flights from Heathrow to Idaho Falls that include hotel bookings?

How can I find direct flights from Heathrow to Idaho Falls?

Can I find deals for business class flights from Heathrow to Idaho Falls?

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Alternative routes for Heathrow to Idaho Falls

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Top 3 airlines flying from Heathrow to Idaho Falls

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How does Cheapflights help users find flights from Heathrow to Idaho Falls?

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Idaho Falls?

Can Cheapflights find flights from Heathrow to Idaho Falls with no change fees?

Can Cheapflights notify me if prices for flights from Heathrow to Idaho Falls become cheaper?

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Cheapest flights from Heathrow to Idaho Falls
Explore the most affordable flight options available from Heathrow to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 July 2025.