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 KLM. Our recent data shows that you can find tickets from as low as £773 on this airline. Additional options worth looking into are Virgin Atlantic and Delta, starting at £776 and £800 round-trip. Users have found that KLM is 8% 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.

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 February, with the cheapest ticket starting at £638.

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.

£773+ Flights from London Heathrow Airport to Idaho Falls

Cheap flight deals from Heathrow to Idaho Falls

Round-trip from	£773
Popular in	July
Cheapest in	February
Average price	£874

KLM
4/7-10/7
4 total stops
38h 55m total
London to Idaho Falls

Search Deals

Highest demand for flights based on searches. 21% potential increase in price (£174 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£33 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 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 13 יוני 2025.

ו' 4/711:45LHR - IDA

2 stops18h 10mKLM

ה' 10/711:20IDA - LHR

2 stops20h 45mKLM

Deal found 11/6£773

ש' 28/610:55LHR - IDA

1 stop14h 17mVirgin Atlantic

ד' 2/713:09IDA - LHR

1 stop13h 41mVirgin Atlantic

Deal found 12/6£776

ש' 28/612:25LHR - IDA

2 stops17h 30mDelta

ד' 2/713:09IDA - LHR

2 stops17h 36mDelta

Deal found 12/6£800

ו' 4/712:00LHR - IDA

1 stop32h 17mBritish Airways

ה' 10/713:47IDA - LHR

1 stop14h 03mBritish Airways

Deal found 11/6£811

ו' 4/709:15LHR - IDA

2 stops18h 58mAmerican Airlines

ה' 10/706:51IDA - LHR

1 stop19h 09mAmerican Airlines

Deal found 11/6£823

ש' 26/721:25LHR - IDA

2 stops26h 39mMultiple Airlines

ש' 2/821:34IDA - LHR

3 stops39h 46mMultiple Airlines

Deal found 10/6£919

ש' 26/708:20LHR - IDA

1 stop20h 15mIberia

ש' 2/806:51IDA - LHR

1 stop19h 09mIberia

Deal found 10/6£1,069

א' 27/712:05LHR - IDA

2 stops17h 46mUnited Airlines

א' 3/816:13IDA - LHR

1 stop34h 27mUnited Airlines

Deal found 12/6£1,135

ש' 2/814:50LHR - IDA

1 stop15h 01mLufthansa

ג' 12/810:45IDA - LHR

1 stop18h 35mLufthansa

Deal found 11/6£1,244

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 13 יוני 2025.

ו' 4/711:45LHR - IDA

2 stops18h 10mKLM

ה' 10/711:20IDA - LHR

2 stops20h 45mKLM

Deal found 11/6£773

ש' 28/610:55LHR - IDA

1 stop14h 17mVirgin Atlantic

ד' 2/713:09IDA - LHR

1 stop13h 41mVirgin Atlantic

Deal found 12/6£776

ש' 28/612:25LHR - IDA

2 stops17h 30mDelta

ד' 2/713:09IDA - LHR

2 stops17h 36mDelta

Deal found 12/6£800

ו' 4/712:00LHR - IDA

1 stop32h 17mBritish Airways

ה' 10/713:47IDA - LHR

1 stop14h 03mBritish Airways

Deal found 11/6£811

ו' 4/709:15LHR - IDA

2 stops18h 58mAmerican Airlines

ה' 10/706:51IDA - LHR

1 stop19h 09mAmerican Airlines

Deal found 11/6£823

ש' 26/721:25LHR - IDA

2 stops26h 39mMultiple Airlines

ש' 2/821:34IDA - LHR

3 stops39h 46mMultiple Airlines

Deal found 10/6£919

ש' 26/708:20LHR - IDA

1 stop20h 15mIberia

ש' 2/806:51IDA - LHR

1 stop19h 09mIberia

Deal found 10/6£1,069

א' 27/712:05LHR - IDA

2 stops17h 46mUnited Airlines

א' 3/816:13IDA - LHR

2 stops21h 27mUnited Airlines

Deal found 12/6£1,135

ש' 2/814:50LHR - IDA

1 stop15h 01mLufthansa

ג' 12/810:45IDA - LHR

1 stop18h 35mLufthansa

Deal found 11/6£1,244

Last-minute flights from Heathrow to Idaho Falls
Discover last-minute flight deals from Heathrow to Idaho Falls. Data last updated 13 יוני 2025 and is based on user searches.

ש' 28/610:55LHR - IDA

1 stop14h 17mVirgin Atlantic

ד' 2/713:09IDA - LHR

1 stop13h 41mVirgin Atlantic

Deal found 12/6£776

ש' 28/612:25LHR - IDA

2 stops17h 30mDelta

ד' 2/713:09IDA - LHR

2 stops17h 36mDelta

Deal found 12/6£800

ו' 4/711:45LHR - IDA

2 stops18h 10mKLM

ה' 10/711:20IDA - LHR

2 stops20h 45mKLM

Deal found 11/6£773

ו' 4/712:00LHR - IDA

1 stop32h 17mBritish Airways

ה' 10/713:47IDA - LHR

1 stop14h 03mBritish Airways

Deal found 11/6£811

ו' 4/709:15LHR - IDA

2 stops18h 58mAmerican Airlines

ה' 10/706:51IDA - LHR

1 stop19h 09mAmerican Airlines

Deal found 11/6£823

ש' 26/721:25LHR - IDA

2 stops26h 39mMultiple Airlines

ש' 2/821:34IDA - LHR

3 stops39h 46mMultiple Airlines

Deal found 10/6£919

ש' 26/708:20LHR - IDA

1 stop20h 15mIberia

ש' 2/806:51IDA - LHR

1 stop19h 09mIberia

Deal found 10/6£1,069

א' 27/712:05LHR - IDA

2 stops17h 46mUnited Airlines

א' 3/816:13IDA - LHR

2 stops21h 27mUnited Airlines

Deal found 12/6£1,135

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

ו' 4/7

11:45-22:55

2 stops18h 10m

Idaho Falls Fanning Field

ה' 10/7

11:20-15:05

2 stops20h 45m

£773

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

ש' 28/6

10:55-18:12

1 stop14h 17m

Idaho Falls Fanning Field

ד' 2/7

13:09-09:50

1 stop13h 41m

£776

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

ש' 28/6

12:25-22:55

2 stops17h 30m

Idaho Falls Fanning Field

ד' 2/7

13:09-13:45

2 stops17h 36m

£800

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

ו' 4/7

12:00-13:17

1 stop32h 17m

Idaho Falls Fanning Field

ה' 10/7

13:47-10:50

1 stop14h 03m

£811

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

ו' 4/7

09:15-21:13

2 stops18h 58m

Idaho Falls Fanning Field

ה' 10/7

06:51-09:00

1 stop19h 09m

£823

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

ש' 26/7

21:25-17:04

2 stops26h 39m

Idaho Falls Fanning Field

ש' 2/8

21:34-20:20

3 stops39h 46m

£919

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

ש' 26/7

08:20-21:35

1 stop20h 15m

Idaho Falls Fanning Field

ש' 2/8

06:51-09:00

1 stop19h 09m

£1,069

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

א' 27/7

12:05-22:51

2 stops17h 46m

Idaho Falls Fanning Field

א' 3/8

16:13-20:40

2 stops21h 27m

£1,135

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

ש' 2/8

14:50-22:51

1 stop15h 01m

Idaho Falls Fanning Field

ג' 12/8

10:45-12:20

1 stop18h 35m

£1,244

Flights are sorted by cheapest return flights first.

Deals found on 11/6

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

Rainfall in Idaho Falls by month

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.

Temperature in Idaho Falls by month

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).

Reviews of airlines servicing Idaho Falls

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very Good

7,950 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,358 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,790 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Virgin Atlantic

7.4

Good

652 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.
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 KLM. Our recent data shows that you can find tickets from as low as £773 on this airline. Additional options worth looking into are Virgin Atlantic and Delta, starting at £776 and £800 round-trip. Users have found that KLM is 8% 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Heathrow to Idaho Falls

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London City to Jackson flights

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Gatwick to Spokane flights

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London City to Boise flights

Gatwick to Idaho Falls flights

Heathrow to Hailey flights

Direct flights to United States

Top 2 airlines flying from Heathrow to Idaho Falls

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£641	Average£947	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
United Airlines	Cheapest£731	Average£998	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

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 £773

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/7. 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

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 13 יוני 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 13 יוני 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

Rainfall in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average rainfall totals by month.

Temperature in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average temperature totals by month.

Reviews of airlines servicing Idaho Falls

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?

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?

100% Free

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 13 יוני 2025.