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Cheap flights from London Heathrow Airport to Idaho Falls from £770

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IDA
18 Apr — 25 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap 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 19 March 2026.

Wed 2/909:45
LHR
-
IDA
2 stops18h 37m
American Airlines
Thu 17/907:00
IDA
-
LHR
2 stops21h 45m
American Airlines
Deal found 18/3£770
Mon 7/906:30
LHR
-
IDA
2 stops22h 44m
Delta
Sun 13/918:50
IDA
-
LHR
1 stop32h 10m
Delta
Deal found 18/3£786
Thu 16/410:55
LHR
-
IDA
1 stop18h 45m
Virgin Atlantic
Thu 23/413:09
IDA
-
LHR
2 stops17h 51m
Virgin Atlantic
Deal found 17/3£798
Sun 3/511:45
LHR
-
IDA
2 stops17h 55m
KLM
Sun 10/518:54
IDA
-
LHR
1 stop32h 06m
KLM
Deal found 19/3£799
Fri 4/910:05
LHR
-
IDA
1 stop18h 17m
American Airlines
Mon 14/912:12
IDA
-
LHR
1 stop13h 53m
American Airlines
Deal found 18/3£800
Sat 5/921:25
LHR
-
IDA
2 stops48h 02m
Multiple Airlines
Wed 16/916:00
IDA
-
LHR
2 stops36h 55m
Multiple Airlines
Deal found 18/3£803
Fri 4/908:15
LHR
-
IDA
2 stops20h 07m
American Airlines
Tue 15/914:20
IDA
-
LHR
1 stop17h 05m
American Airlines
Deal found 18/3£808
Sat 5/910:55
LHR
-
IDA
1 stop14h 19m
Virgin Atlantic
Wed 16/913:10
IDA
-
LHR
2 stops21h 25m
Virgin Atlantic
Deal found 18/3£811
Thu 16/406:30
LHR
-
IDA
2 stops23h 10m
Delta
Thu 23/405:47
IDA
-
LHR
2 stops24h 18m
Delta
Deal found 17/3£814
Tue 1/906:30
LHR
-
IDA
2 stops22h 44m
KLM
Fri 25/918:50
IDA
-
LHR
1 stop32h 10m
KLM
Deal found 18/3£816
Sat 2/518:35
LHR
-
IDA
2 stops35h 05m
Virgin Atlantic
Sat 9/515:16
IDA
-
LHR
2 stops37h 54m
Virgin Atlantic
Deal found 18/3£819

Find 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 19 March 2026.

Round-trip from

£770
American Airlines
  • American Airlines
  • 2/9-17/9
  • 4 total stops
  • 40h 22m total
  • London to Idaho Falls
Search Deals

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 19 March 2026.
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

Cheapest return flight

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sun 3/5

11:45-22:40

2 stops17h 55m

Idaho Falls Fanning Field

Sun 10/5

18:54-10:00

1 stop32h 06m

£799

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Thu 16/4

06:30-22:40

2 stops23h 10m

Idaho Falls Fanning Field

Thu 23/4

05:47-13:05

2 stops24h 18m

£814

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 1/9

06:30-22:14

2 stops22h 44m

Idaho Falls Fanning Field

Fri 25/9

18:50-10:00

1 stop32h 10m

£814

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 1/9

10:05-21:22

1 stop18h 17m

Idaho Falls Fanning Field

Fri 25/9

14:20-12:50

1 stop15h 30m

£836

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 1/9

06:15-18:14

2 stops18h 59m

Idaho Falls Fanning Field

Fri 25/9

13:10-14:35

2 stops18h 25m

£839
Fastest return journey

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 5/9

06:55-17:16

2 stops17h 21m

Idaho Falls Fanning Field

Wed 16/9

16:10-12:20

1 stop13h 10m

£940

Flights are sorted by cheapest return flights first.

Deals found on 19/3

Sorted by cheapest first

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 £583). Flying from London Heathrow Airport to Idaho Falls in December is currently the most expensive (average of £1,025). 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 19 March 2026.
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
682 reviews
Check prices

Comfort

7.3

Overall

7.5

Food

6.9

Boarding

7.7

Entertainment

7.6

Crew

8.2

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
682 reviews
Virgin Atlantic
7.5
Good
682 reviews
Check prices

Comfort

7.3

Overall

7.5

Food

6.9

Boarding

7.7

Entertainment

7.6

Crew

8.2

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
9,440 reviews
Virgin Atlantic
7.5
Good
682 reviews
Check prices

Comfort

7.3

Overall

7.5

Food

6.9

Boarding

7.7

Entertainment

7.6

Crew

8.2

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 17h 55m. 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 £654 on this airline. An additional option worth looking into is United Airlines, starting at £763.

  • 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 £583). Flying from London Heathrow Airport to Idaho Falls in December is currently the most expensive (average of £1,025). 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

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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 19 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£654Average£860FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£763Average£1,044FlexibilityNo 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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