How long is the flight from London Heathrow Airport to Idaho Falls?

Departing from London Heathrow Airport to Idaho Falls will take you 15h 09m. Airlines will cover a distance of 4705 mi. Both multi-stop and direct flights can be found to your destination and back.

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

Our cheapest airline available from London Heathrow Airport to Idaho Falls is Virgin Atlantic. Our recent data shows that you can find tickets from as low as £642 on this airline. An additional option worth looking into is United Airlines, starting at £750. Users have found that Virgin Atlantic is 22% cheaper than the other options available to this destination.

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

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.

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.

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).

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

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.

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

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 £629.

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

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.

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

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 2 different airlines.

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

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

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

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.

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

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.

£457+ Flights from London Heathrow Airport to Idaho Falls

Q: What’s the cheapest stopover airport for flights from London Heathrow Airport to Idaho Falls?

Dallas (DFW) is the most affordable one-stop option, with an average return flight price of £684.

Cheap flight deals from Heathrow to Idaho Falls

Round-trip from	£596
One-way from	£457
Popular in	July
Cheapest in	February
Average price	£751

American Airlines
22/11-26/11
3 total stops
44h 59m total
London to Idaho Falls

Search Deals

16/10
2 total stops
39h 44m total
London to Idaho Falls

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (£134 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£31 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Heathrow to Idaho Falls

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 15 September 2025.

Sat 22/1114:25LHR - IDA

1 stop15h 09mAmerican Airlines

Wed 26/1107:10IDA - LHR

2 stops29h 50mAmerican Airlines

Deal found 12/9£596

Sat 22/1106:20LHR - IDA

2 stops18h 57mDelta

Wed 26/1106:00IDA - LHR

1 stop21h 00mDelta

Deal found 14/9£602

Sat 22/1111:10LHR - IDA

2 stops18h 42mUnited Airlines

Wed 26/1105:00IDA - LHR

2 stops17h 55mUnited Airlines

Deal found 14/9£664

Wed 29/1007:30LHR - IDA

2 stops19h 33mUnited Airlines

Wed 5/1114:45IDA - LHR

1 stop11h 55mUnited Airlines

Deal found 14/9£666

Best flights from Heathrow to Idaho Falls
Discover carefully curated flight deals from Heathrow to Idaho Falls that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 September 2025.

Sat 22/1114:25LHR - IDA

1 stop15h 09mAmerican Airlines

Wed 26/1107:10IDA - LHR

2 stops29h 50mAmerican Airlines

Deal found 12/9£596

Sat 22/1106:20LHR - IDA

2 stops18h 57mDelta

Wed 26/1106:00IDA - LHR

1 stop21h 00mDelta

Deal found 14/9£602

Sat 22/1111:10LHR - IDA

2 stops18h 42mUnited Airlines

Wed 26/1105:00IDA - LHR

2 stops17h 55mUnited Airlines

Deal found 14/9£664

Wed 29/1007:30LHR - IDA

2 stops19h 33mUnited Airlines

Wed 5/1108:30IDA - LHR

2 stops18h 45mUnited Airlines

Deal found 14/9£666

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 22/11

14:25-22:34

1 stop15h 09m

Idaho Falls Fanning Field

Wed 26/11

07:10-20:00

2 stops29h 50m

£596

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 22/11

06:20-18:17

2 stops18h 57m

Idaho Falls Fanning Field

Wed 26/11

06:00-10:00

1 stop21h 00m

£602

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 22/11

11:10-22:52

2 stops18h 42m

Idaho Falls Fanning Field

Wed 26/11

05:00-05:55

2 stops17h 55m

£664

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 29/10

07:30-21:03

2 stops19h 33m

Idaho Falls Fanning Field

Wed 5/11

08:30-10:15

2 stops18h 45m

£666

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Thu 16/10

07:30-16:14

2 stops39h 44m

£457

Flights are sorted by cheapest return flights first.

Deals found on 13/9

Best time to book a flight from Heathrow to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Heathrow with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Idaho Falls

What’s the top stopover airport for flights from London Heathrow Airport to Idaho Falls?

Denver (DEN) – chosen by Cheapflights users on 58% of one-stop itineraries from London Heathrow Airport to Idaho Falls on Cheapflights.

What’s the fastest stopover option from London Heathrow Airport to Idaho Falls?

Flights via Denver (DEN) have the shortest average one-way travel time for one-stop routes: 13h 25m.

What’s the fastest stopover option from London Heathrow Airport to Idaho Falls?

Flights via Denver (DEN) have the shortest average one-way travel time for one-stop routes: 13h 25m.

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Idaho Falls?

Flights via Denver (DEN) offer the fastest connection on this route, with an average stopover time of 1h 39m.

Reviews of airlines servicing Idaho Falls

Read reviews from past customers who have flown with United Airlines and Virgin Atlantic from London Heathrow Airport to Idaho Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,929 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

United Airlines

7.4

Good

8,929 reviews

United Airlines

7.4

Good

8,929 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Virgin Atlantic

7.4

Good

664 reviews

United Airlines

7.4

Good

8,929 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

What airport do you fly into for flights to Idaho Falls from London Heathrow?
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 2 different airlines.
How long is the flight from London Heathrow Airport to Idaho Falls?
Departing from London Heathrow Airport to Idaho Falls will take you 15h 09m. Airlines will cover a distance of 4705 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from London Heathrow Airport to Idaho Falls round-trip?
Our cheapest airline available from London Heathrow Airport to Idaho Falls is Virgin Atlantic. Our recent data shows that you can find tickets from as low as £642 on this airline. An additional option worth looking into is United Airlines, starting at £750. Users have found that Virgin Atlantic is 22% cheaper than the other options available to this destination.
Can I find deals for flights from Heathrow to Idaho Falls that include hotel bookings?
Yes. In addition to deals on Heathrow to Idaho Falls flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Idaho Falls?
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.
Can I find deals for business class flights from Heathrow to Idaho Falls?
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.

See more FAQs

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Alternative routes for Heathrow to Idaho Falls

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Direct flights to United States

Top 2 airlines flying from Heathrow to Idaho Falls

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£642	Average£891	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
United Airlines	Cheapest£750	Average£1,026	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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

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!

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

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.

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

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.

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

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.

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Cheap flights from London Heathrow Airport to Idaho Falls from £457

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Idaho Falls

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Idaho Falls

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 15 September 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 15 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Idaho Falls that are best for you.

Best time to book a flight from Heathrow to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Heathrow with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Idaho Falls

What’s the top stopover airport for flights from London Heathrow Airport to Idaho Falls?

What’s the fastest stopover option from London Heathrow Airport to Idaho Falls?

What’s the fastest stopover option from London Heathrow Airport to Idaho Falls?

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Idaho Falls?

Reviews of airlines servicing Idaho Falls

Read reviews from past customers who have flown with United Airlines and Virgin Atlantic from London Heathrow Airport to Idaho Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

How long is the flight from London Heathrow Airport to Idaho Falls?

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?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Idaho Falls

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Heathrow to Idaho Falls

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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Book with Flexibility

Travel Smart

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 15 September 2025.