LHR - IDA

$659 Find Cheap Flights from London to Idaho Falls - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$1,058
Typical prices: $1,154-$1,541
Alaska Airlines
Sat 10/27Sat 11/3
LHR - IDA • 1 stop
Cheapest one-way
$659
Typical prices: $693-$1,170
Multiple Airlines
Mon 1/8
LHR - IDA • 3 stops
Nonstop flights
Not available
There are currently no direct flights between London Heathrow Airport and Idaho Falls. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
January
Cheapest • 33% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Seattle/Tacoma Intl (SEA)
Cheapest • Avg $1,028 (round-trip)
Denver Intl (DEN)
Shortest trip • 12h 25m (one-way)
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Flight Deals

Cheap Flights from London to Idaho Falls (LHR-IDA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from London to Idaho Falls

Thu, Jan 28 - Mon, Feb 1
Alaska Airlines Logo
2:45 pm - 3:21 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
31h 36m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
1:56 pm - 12:20 pmIDA  Idaho Falls Fanning Field-LHR London Heathrow
15h 24m1 stop Seattle/Tacoma Intl
$979Alaska Airlines
Tue, Oct 27 - Tue, Nov 3
Alaska Airlines Logo
2:45 pm - 10:59 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
14h 14m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:04 am - 12:20 pmIDA  Idaho Falls Fanning Field-LHR London Heathrow
23h 16m1 stop Seattle/Tacoma Intl
$1,058Alaska Airlines
Thu, Jan 28 - Mon, Feb 1
Alaska Airlines Logo
2:45 pm - 3:21 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
31h 36m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
1:56 pm - 12:20 pmIDA  Idaho Falls Fanning Field-LHR London Heathrow
15h 24m1 stop Seattle/Tacoma Intl
$1,085Alaska Airlines
Thu, Jan 28 - Mon, Feb 1
Alaska Airlines Logo
2:45 pm - 3:21 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
31h 36m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
1:56 pm - 12:20 pmIDA  Idaho Falls Fanning Field-LHR London Heathrow
15h 24m1 stop Seattle/Tacoma Intl
$1,086Alaska Airlines
Fri, Nov 20 - Sat, Nov 28
Alaska Airlines Logo
2:45 pm - 10:57 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
15h 12m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:02 am - 12:20 pmIDA  Idaho Falls Fanning Field-LHR London Heathrow
23h 18m1 stop Seattle/Tacoma Intl
$1,122Alaska Airlines
Sun, Oct 25 - Sun, Nov 1
Alaska Airlines Logo
2:45 pm - 10:59 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
14h 14m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:04 am - 12:20 pmIDA  Idaho Falls Fanning Field-LHR London Heathrow
23h 16m1 stop Seattle/Tacoma Intl
$1,160Alaska Airlines
Fri, Nov 20 - Sat, Nov 28
Multiple Airlines Logo
8:25 pm - 6:17 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
28h 52m2 stops Amsterdam Schiphol Salt Lake City
Multiple Airlines Logo
1:11 pm - 10:00 amIDA  Idaho Falls Fanning Field-LHR London Heathrow
13h 49m1 stop Salt Lake City
$1,163Multiple Airlines
Fri, Nov 20 - Sat, Nov 28
Virgin Atlantic Logo
4:35 pm - 6:17 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
32h 42m2 stops New York John F Kennedy Intl Salt Lake City
Virgin Atlantic Logo
6:00 am - 10:00 amIDA  Idaho Falls Fanning Field-LHR London Heathrow
21h 00m1 stop Salt Lake City
$1,167Virgin Atlantic
Fri, Nov 20 - Sat, Nov 28
Finnair Logo
12:50 pm - 9:51 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
40h 01m2 stops Toronto Pearson Intl Dallas/Fort Worth
Finnair Logo
1:43 pm - 8:35 amIDA  Idaho Falls Fanning Field-LHR London Heathrow
35h 52m2 stops Dallas/Fort Worth Chicago O'Hare Intl
$1,171Finnair
Sat, Nov 21 - Sat, Nov 28
Multiple Airlines Logo
6:30 am - 10:57 pmLHR  London Heathrow-IDA Idaho Falls Fanning Field
23h 27m2 stops Amsterdam Schiphol Seattle/Tacoma Intl
Multiple Airlines Logo
6:02 am - 10:40 amIDA  Idaho Falls Fanning Field-LHR London Heathrow
21h 38m1 stop Seattle/Tacoma Intl
$1,175Multiple Airlines
Booking Insights

Price, demand and travel trends for London Heathrow Airport to Idaho Falls flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from London Heathrow Airport to Idaho Falls with more confidence.

How much is a round-trip flight from London Heathrow Airport to Idaho Falls?

Round-trip flights from London Heathrow Airport to Idaho Falls start at $1,058. Prices are below average for this route right now, with typical round-trip fares ranging from $1,154 to $1,541. The lowest price found in the past 5 days was $1,058 on Alaska Airlines.

What's the cheapest day of the week to fly from London Heathrow Airport to Idaho Falls?

Wednesday is the cheapest day of the week to fly from London Heathrow Airport to Idaho Falls, it is 33% cheaper than the average day. Monday is the most expensive day with flight prices 24% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for London Heathrow Airport to Idaho Falls flights

Low season

October

Cheapest flight

$659
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from London Heathrow Airport to Idaho Falls

When to book flights from London to Idaho Falls

Are your dates flexible? Find out the best times to travel from London to Idaho Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your London Heathrow Airport to Idaho Falls flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from London Heathrow Airport to Idaho Falls?

    Flights from London Heathrow Airport to Idaho Falls usually depart from London Heathrow (LHR) and arrive at Idaho Falls Fanning Field (IDA).

  • What cabin classes can I book on flights from London Heathrow Airport to Idaho Falls?

    Only Premium Economy Class is available on flights from London Heathrow Airport to Idaho Falls.

  • Which airports do connecting flights from London Heathrow Airport to Idaho Falls pass through?

    One-stop flights from London Heathrow Airport to Idaho Falls most commonly connect through:

    • Denver Intl (DEN) - 61% of one-stop connections
    • Salt Lake City (SLC) - 22% of one-stop connections
    • Dallas/Fort Worth (DFW) - 8% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 8% of one-stop connections

    Denver Intl (DEN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from London Heathrow Airport to Idaho Falls?

    Yes. Being flexible with your travel dates can save you up to 46% on the London Heathrow Airport to Idaho Falls route. Wednesday is the cheapest departure day at $959 round-trip on average, while Monday is the most expensive at $1,751, a difference of $792. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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

    A nonstop flight from London Heathrow Airport to Idaho Falls takes 0h 00m, covering 4,705 miles.

  • Do I need a passport to fly from London Heathrow Airport to Idaho Falls?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from London Heathrow Airport to Idaho Falls changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,058 to $7,032. That means the highest observed fare was about 7x higher than the lowest one.

  • How are flight prices from London Heathrow Airport to Idaho Falls looking right now?

    One-way fares from London Heathrow Airport to Idaho Falls are currently higher than usual. Average one-way flight prices are about $904, which is 7% above the typical average for this route.

  • How much time can I save by choosing a different layover airport from London Heathrow Airport to Idaho Falls?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 12h 25m, compared with 13h 54m via Salt Lake City (SLC) and 15h 12m via Dallas/Fort Worth (DFW).

  • What is the time difference between London Heathrow Airport and Idaho Falls?

    Idaho Falls is 7 hours behind London Heathrow Airport (Mountain Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Idaho Falls Fanning Field Airport (IDA)?

    Idaho Falls Fanning Field Airport (IDA) hosts 5 major car rental companies, with daily rates starting from around $34 for economy cars. Top options include:
    • Alamo
    • Hertz
    • Enterprise Rent-A-Car
    • Budget
    • National

  • How much should I expect to pay for a London Heathrow Airport to Idaho Falls flight?

    Round-trip flights from London Heathrow Airport to Idaho Falls range from $1,154 to $1,541, with an average of $1,411 over the past 12 months. Anything below $1,154 counts as a good deal.

Your guide to booking London Heathrow Airport to Idaho Falls flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Wednesday departure instead of Monday. On this route, Wednesday flights average $959 - about $792 less than Monday (45% savings) based on the last 12 months.
  • If you can choose when to travel, plan your London Heathrow Airport to Idaho Falls trip for January. Fares historically average $946 round-trip in that month - typically $607 less than the most expensive month, which is August (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Idaho Falls Fanning Field Airport.
    - Tru by Hilton Idaho Falls
    - Quality Inn Idaho Falls
    - Best Western Driftwood Inn

More options for your flight from London to Idaho Falls

Complete your trip to Idaho Falls with a hotel stay or car rental

Car rentals in Idaho Falls
Hotels in Idaho Falls
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