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Cheap flights from London Heathrow Airport to Idaho Falls from £655

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.
LHR — IDA
22 Aug — 29 Aug1
1 adult

Cheap flight deals from Heathrow to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Idaho Falls (IDA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 17 August 2025.

Round-trip from

£655

Popular in

July

Cheapest in

February

Average price

£1,103
Delta
  • Delta
  • 22/11-26/11
  • 3 total stops
  • 43h 55m 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).
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Cheapest flight prices on average. 4% potential price decrease (£27 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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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 17 August 2025.

Sat 22/1106:20LHR - IDA
2 stops18h 54mDelta
Wed 26/1106:05IDA - LHR
1 stop20h 55mDelta
Deal found 14/8£655
Sat 22/1114:25LHR - IDA
1 stop15h 09mAmerican Airlines
Wed 26/1113:58IDA - LHR
1 stop15h 17mAmerican Airlines
Deal found 16/8£673
Thu 9/1006:15LHR - IDA
2 stops18h 58mDelta
Sat 18/1006:00IDA - LHR
1 stop20h 50mDelta
Deal found 16/8£685
Fri 10/1006:15LHR - IDA
2 stops18h 58mDelta
Mon 20/1013:15IDA - LHR
2 stops17h 15mDelta
Deal found 16/8£737
Sat 22/1111:35LHR - IDA
1 stop18h 17mUnited Airlines
Wed 26/1110:50IDA - LHR
1 stop15h 50mUnited Airlines
Deal found 14/8£742
Fri 10/1016:25LHR - IDA
1 stop27h 00mBritish Airways
Mon 20/1012:55IDA - LHR
1 stop13h 05mBritish Airways
Deal found 16/8£751
Sun 24/808:30LHR - IDA
2 stops15h 45mUnited Airlines
Mon 1/916:15IDA - LHR
1 stop34h 25mUnited Airlines
Deal found 15/8£824
Sun 24/814:10LHR - IDA
2 stops29h 06mBritish Airways
Mon 1/913:17IDA - LHR
2 stops25h 23mBritish Airways
Deal found 15/8£894

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Idaho Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 August 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Idaho Falls that are best for you.

Fly from

Heathrow

Fly to

Idaho Falls

Route

Depart

Return

Price

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 22/11

06:20-22:20

2 stops23h 00m

Idaho Falls Fanning Field

Wed 26/11

06:05-07:50

2 stops18h 45m

£655

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 22/11

14:25-22:34

1 stop15h 09m

Idaho Falls Fanning Field

Wed 26/11

13:58-12:15

1 stop15h 17m

£673

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Thu 9/10

06:15-18:13

2 stops18h 58m

Idaho Falls Fanning Field

Sat 18/10

06:00-09:50

1 stop20h 50m

£685

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Fri 10/10

06:15-22:15

2 stops23h 00m

Idaho Falls Fanning Field

Mon 20/10

06:00-09:50

1 stop20h 50m

£737

Flights are sorted by cheapest return flights first.

Deals found on 14/8

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?

Share of one-stop return flights from London Heathrow Airport to Idaho Falls chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Denver (DEN) – chosen by Cheapflights users on 55% of one-stop itineraries from London Heathrow Airport to Idaho Falls on Cheapflights.

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

Average return fare for one-stop flights from London Heathrow Airport to Idaho Falls, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Salt Lake City (SLC) is the most affordable one-stop option, with an average return flight price of £860.

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

Shortest average travel time for one-stop one-way flights from London Heathrow Airport to Idaho Falls, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Denver (DEN) have the shortest average one-way travel time for one-stop routes: 13h 31m.

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

Average stopover duration for one-stop one-way flights from London Heathrow Airport to Idaho Falls, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Denver (DEN) offer the fastest connection on this route, with an average stopover time of 1h 41m.

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho Falls. Reviews last updated 17 August 2025.
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
8,919 reviews
Check prices

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,919 reviews
United Airlines
7.4
Good
8,919 reviews
Check prices

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Virgin Atlantic
7.4
Good
657 reviews
United Airlines
7.4
Good
8,919 reviews
Check prices

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

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?

    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 Virgin Atlantic. Our recent data shows that you can find tickets from as low as £643 on this airline. An additional option worth looking into is United Airlines, starting at £751. 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

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.

Top 2 airlines flying from Heathrow to Idaho Falls

Discover the top 2 airlines that operate flights from Heathrow to Idaho Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 17 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£643Average£949FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£751Average£1,000FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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

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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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