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Idaho Falls

$1,051+ Cheap flights from Heathrow (LHR) to Idaho Falls (IDA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IDA
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 June 12, 2025.

Round-trip from

$1,051
(TravelUp)

Popular in

July

Cheapest in

February

Average price

$1,188
From London Heathrow to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 21% potential increase in price ($321 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($61 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This TravelUp deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/411:45 amLHR - IDA
2 stops18h 10mKLM
Thu 7/1011:20 amIDA - LHR
2 stops20h 45mKLM
Deal found 6/11$1,051
This Flighttix deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/412:00 pmLHR - IDA
1 stop32h 17mBritish Airways
Thu 7/101:47 pmIDA - LHR
1 stop14h 03mBritish Airways
Deal found 6/11$1,102
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/49:15 amLHR - IDA
2 stops18h 58mAmerican Airlines
Thu 7/106:51 amIDA - LHR
1 stop19h 09mAmerican Airlines
Deal found 6/11$1,118
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/269:25 pmLHR - IDA
2 stops26h 39mMultiple Airlines
Sat 8/29:34 pmIDA - LHR
3 stops39h 46mMultiple Airlines
Deal found 6/10$1,249
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/266:15 amLHR - IDA
2 stops18h 56mDelta
Sat 8/26:00 amIDA - LHR
2 stops17h 45mDelta
Deal found 6/11$1,436
This Flighttix deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/268:20 amLHR - IDA
1 stop20h 15mIberia
Sat 8/26:51 amIDA - LHR
1 stop19h 09mIberia
Deal found 6/10$1,452
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2712:05 pmLHR - IDA
2 stops17h 46mUnited Airlines
Sun 8/34:13 pmIDA - LHR
1 stop34h 27mUnited Airlines
Deal found 6/12$1,542
This TravelUp deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/212:55 pmLHR - IDA
2 stops36h 16mVirgin Atlantic
Tue 8/123:00 pmIDA - LHR
2 stops35h 15mVirgin Atlantic
Deal found 6/11$1,639
This ChecknFly deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/22:50 pmLHR - IDA
1 stop15h 01mLufthansa
Tue 8/1210:45 amIDA - LHR
1 stop18h 35mLufthansa
Deal found 6/11$1,690

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated June 12, 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

Fri 7/4

11:45 am-10:55 pm

2 stops18h 10m

Idaho Falls Fanning Field

Thu 7/10

11:20 am-3:05 pm

2 stops20h 45m

$1,051

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Fri 7/4

12:00 pm-1:17 pm

1 stop32h 17m

Idaho Falls Fanning Field

Thu 7/10

1:47 pm-10:50 am

1 stop14h 03m

$1,102

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Fri 7/4

9:15 am-9:13 pm

2 stops18h 58m

Idaho Falls Fanning Field

Thu 7/10

6:51 am-9:00 am

1 stop19h 09m

$1,118

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 7/26

9:25 pm-5:04 pm

2 stops26h 39m

Idaho Falls Fanning Field

Sat 8/2

9:34 pm-8:20 pm

3 stops39h 46m

$1,249

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 7/26

6:15 am-6:11 pm

2 stops18h 56m

Idaho Falls Fanning Field

Sat 8/2

6:00 am-6:45 am

2 stops17h 45m

$1,436

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 7/26

8:20 am-9:35 pm

1 stop20h 15m

Idaho Falls Fanning Field

Sat 8/2

6:51 am-9:00 am

1 stop19h 09m

$1,452

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sun 7/27

12:05 pm-10:51 pm

2 stops17h 46m

Idaho Falls Fanning Field

Sun 8/3

4:13 pm-9:40 am

1 stop34h 27m

$1,542

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 8/2

12:55 pm-6:11 pm

2 stops36h 16m

Idaho Falls Fanning Field

Tue 8/12

3:00 pm-9:15 am

2 stops35h 15m

$1,639

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 8/2

2:50 pm-10:51 pm

1 stop15h 01m

Idaho Falls Fanning Field

Tue 8/12

10:45 am-12:20 pm

1 stop18h 35m

$1,690

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 round-trip 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, October is the cheapest month in which you can book a flight from London Heathrow Airport to Idaho Falls (average of $380). Flying from London Heathrow Airport to Idaho Falls in December is currently the most expensive (average of $578). 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.

Rainfall in Idaho Falls by month

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

In terms of precipitation, rainfall in Idaho Falls ranges from 0.6 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Idaho Falls when rainfall is around 0.6 in.

Temperature in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average temperature totals 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 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 12, 2025.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

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

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?

    Idaho Falls Fanning Field (IDA), located 3.8 mi from the city center, is the airport you fly into when you book flights from London Heathrow to Idaho Falls. 0 airlines have flights to Fanning Field from London Heathrow on a regular basis. Booking flights from London Heathrow to Idaho Falls Fanning Field should not be difficult; the airport handles an average of 0 inbound flights from London Heathrow per day.

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

    Cheapflights users have booked flights from London Heathrow Airport to Idaho Falls round-trip from $1,051. Other airlines that can offer you cheap pricing are British Airways, from $1,102, and American Airlines, from $1,118. KLM is currently priced 8% below the average price you’ll pay for this route.

  • 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 vacation 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, October is the cheapest month in which you can book a flight from London Heathrow Airport to Idaho Falls (average of $380). Flying from London Heathrow Airport to Idaho Falls in December is currently the most expensive (average of $578). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
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