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Cheap flights from London Heathrow Airport to Idaho Falls from £734

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IDA
16 Nov — 23 Nov1
1 adult
1 adult, Economy

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 October 2025.

Round-trip from

£734

Popular in

May

Cheapest in

November
15/12-9/1
  • 15/12-9/1
  • 4 total stops
  • 54h 02m total
  • London to Idaho Falls
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£85 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals

Find flight deals from Heathrow to Idaho Falls

Enter your travel dates to find the best prices.

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 October 2025.

Mon 15/1212:15LHR - IDA
2 stops35h 12mMultiple Airlines
Fri 9/109:00IDA - LHR
2 stops18h 50mMultiple Airlines
Deal found 16/10£734
Sat 22/1106:20LHR - IDA
2 stops23h 13mDelta
Tue 25/1106:00IDA - LHR
2 stops18h 05mDelta
Deal found 14/10£746
Sat 22/1106:20LHR - IDA
2 stops23h 13mDelta
Wed 26/1106:00IDA - LHR
1 stop21h 00mDelta
Deal found 16/10£753
Thu 13/1106:20LHR - IDA
2 stops18h 57mAir France
Thu 20/1118:57IDA - LHR
1 stop32h 03mAir France
Deal found 16/10£850
Thu 13/1109:30LHR - IDA
2 stops20h 22mUnited Airlines
Thu 20/1107:00IDA - LHR
2 stops18h 30mUnited Airlines
Deal found 16/10£861
Mon 15/1216:30LHR - IDA
1 stop27h 57mAmerican Airlines
Fri 9/107:29IDA - LHR
2 stops18h 46mAmerican Airlines
Deal found 16/10£888

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 October 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

Mon 15/12

12:15-16:27

2 stops35h 12m

Idaho Falls Fanning Field

Fri 9/1

09:00-10:50

2 stops18h 50m

£734

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 22/11

06:20-22:33

2 stops23h 13m

Idaho Falls Fanning Field

Tue 25/11

06:00-07:05

2 stops18h 05m

£746

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 22/11

06:20-18:17

2 stops18h 57m

Idaho Falls Fanning Field

Wed 26/11

06:00-07:05

2 stops18h 05m

£753

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Thu 13/11

06:20-18:17

2 stops18h 57m

Idaho Falls Fanning Field

Thu 20/11

18:57-10:00

1 stop32h 03m

£850

Flights are sorted by cheapest return flights first.

Deals found on 16/10

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 is the cheapest month to book a flight from London Heathrow Airport to Idaho Falls?

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Idaho Falls (average of £611). Flying from London Heathrow Airport to Idaho Falls in December is currently the most expensive (average of £937). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 October 2025.
Read reviews from past customers who have flown with Virgin Atlantic and United Airlines 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.
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Overall

7.5

Comfort

7.3

Food

6.9

Boarding

7.7

Crew

8.1

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
670 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Overall

7.5

Comfort

7.3

Food

6.9

Boarding

7.7

Crew

8.1

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
United Airlines
7.4
Good
8,983 reviews
Virgin Atlantic
7.5
Good
670 reviews
Check prices

Overall

7.5

Comfort

7.3

Food

6.9

Boarding

7.7

Crew

8.1

Entertainment

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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.

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

    Departing from London Heathrow Airport to Idaho Falls will take you 23h 13m. Airlines will cover a distance of 4705 mi.

  • 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 £649 on this airline. An additional option worth looking into is United Airlines, starting at £758.

  • 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.

  • What is the cheapest month to book a flight from London Heathrow Airport to Idaho Falls?

    Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Idaho Falls (average of £611). Flying from London Heathrow Airport to Idaho Falls in December is currently the most expensive (average of £937). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£649Average£900FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£758Average£1,036FlexibilityNo 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?

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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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