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Idaho Falls

$885+ 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 11/22. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IDA
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$885
(American Airlines)

Popular in

July

Cheapest in

February

Average price

$1,690
From London Heathrow to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 20% potential increase in price ($308 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($59 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This American Airlines deal was found by Cheapflights users on 7/2. 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.
Sat 11/224:30 pmLHR - IDA
1 stop26h 49mAmerican Airlines
Wed 11/261:50 pmIDA - LHR
1 stop15h 25mAmerican Airlines
Deal found 7/2$885
This Delta deal was found by Cheapflights users on 6/30. 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 11/226:20 amLHR - IDA
2 stops18h 54mDelta
Wed 11/261:05 pmIDA - LHR
2 stops16h 10mDelta
Deal found 6/30$897
This United Airlines deal was found by Cheapflights users on 7/2. 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.
Sat 11/2211:10 amLHR - IDA
2 stops18h 42mUnited Airlines
Wed 11/2610:50 amIDA - LHR
2 stops17h 15mUnited Airlines
Deal found 7/2$981
This American Airlines deal was found by Cheapflights users on 7/3. 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.
Sun 8/179:45 amLHR - IDA
1 stop19h 54mMultiple Airlines
Sun 8/2412:46 pmIDA - LHR
1 stop15h 19mMultiple Airlines
Deal found 7/3$1,070
This ChecknFly deal was found by Cheapflights users on 7/1. 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.
Wed 7/166:00 pmLHR - IDA
2 stops30h 22mLufthansa
Sun 7/2010:45 amIDA - LHR
1 stop15h 55mLufthansa
Deal found 7/1$1,203
This Flighttix deal was found by Cheapflights users on 7/2. 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 8/169:45 amLHR - IDA
2 stops18h 33mBritish Airways
Sat 8/237:00 amIDA - LHR
2 stops21h 05mBritish Airways
Deal found 7/2$1,204

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 July 3, 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 11/22

4:30 pm-12:19 pm

1 stop26h 49m

Idaho Falls Fanning Field

Wed 11/26

1:50 pm-12:15 pm

1 stop15h 25m

$885

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 11/22

6:20 am-6:14 pm

2 stops18h 54m

Idaho Falls Fanning Field

Wed 11/26

1:05 pm-12:15 pm

2 stops16h 10m

$897

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 11/22

11:10 am-10:52 pm

2 stops18h 42m

Idaho Falls Fanning Field

Wed 11/26

10:50 am-11:05 am

2 stops17h 15m

$981

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sun 8/17

9:45 am-10:39 pm

1 stop19h 54m

Idaho Falls Fanning Field

Sun 8/24

12:46 pm-11:05 am

1 stop15h 19m

$1,070

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 7/16

6:00 pm-5:22 pm

2 stops30h 22m

Idaho Falls Fanning Field

Sun 7/20

10:45 am-9:40 am

1 stop15h 55m

$1,203

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 8/16

9:45 am-9:18 pm

2 stops18h 33m

Idaho Falls Fanning Field

Sat 8/23

7:00 am-11:05 am

2 stops21h 05m

$1,204

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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.

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 July 3, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from London Heathrow Airport to Idaho Falls have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

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
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

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
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

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
7,982 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

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!
Lufthansa
6.8
Okay
7,207 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

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!
British Airways
6.6
Okay
7,093 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

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 $885. Other airlines that can offer you cheap pricing are Delta, from $897, and United Airlines, from $981. American Airlines is currently priced 23% 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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Alternative routes for Heathrow to Idaho Falls

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