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Cheap flights from London Heathrow Airport to Idaho Falls from £588

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Idaho Falls departing on 18/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from London Heathrow Airport to Idaho Falls

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:20 - 22:52
LHR
-
IDA
16h 32m
1 stop
Multiple Airlines Logo
06:00 - 08:45
IDA
-
LHR
20h 45m
2 stops
£588Multiple Airlines
Wed, 18 Mar - Wed, 25 Mar
Multiple Airlines Logo
12:20 - 22:52
LHR
-
IDA
16h 32m
1 stop
Multiple Airlines Logo
06:00 - 10:30
IDA
-
LHR
22h 30m
1 stop
£706Multiple Airlines
Wed, 18 Mar - Wed, 25 Mar
Virgin Atlantic Logo
08:55 - 22:16
LHR
-
IDA
19h 21m
2 stops
Virgin Atlantic Logo
13:10 - 10:30
IDA
-
LHR
15h 20m
2 stops
£707Virgin Atlantic
Wed, 18 Mar - Wed, 25 Mar
KLM Logo
20:25 - 18:15
LHR
-
IDA
27h 50m
2 stops
KLM Logo
18:55 - 10:00
IDA
-
LHR
32h 05m
1 stop
£724KLM
Mon, 16 Mar - Sun, 29 Mar
Finnair Logo
14:50 - 13:48
LHR
-
IDA
28h 58m
1 stop
Finnair Logo
14:18 - 08:05
IDA
-
LHR
34h 47m
1 stop
£727Finnair
Mon, 16 Mar - Sun, 29 Mar
KLM Logo
17:50 - 18:15
LHR
-
IDA
30h 25m
2 stops
KLM Logo
13:10 - 10:00
IDA
-
LHR
14h 50m
1 stop
£736KLM
Tue, 17 Mar - Tue, 24 Mar
Delta Logo
10:45 - 18:15
LHR
-
IDA
13h 30m
1 stop
Delta Logo
05:45 - 10:00
IDA
-
LHR
22h 15m
1 stop
£739Delta
Tue, 17 Mar - Tue, 24 Mar
KLM Logo
08:40 - 18:15
LHR
-
IDA
39h 35m
2 stops
KLM Logo
18:55 - 13:05
IDA
-
LHR
35h 10m
2 stops
£766KLM
Mon, 16 Mar - Sun, 29 Mar
United Airlines Logo
09:30 - 20:58
LHR
-
IDA
18h 28m
2 stops
United Airlines Logo
10:50 - 09:40
IDA
-
LHR
16h 50m
1 stop
£828United Airlines
Mon, 2 Mar - Mon, 9 Mar
United Airlines Logo
09:30 - 20:58
LHR
-
IDA
18h 28m
2 stops
United Airlines Logo
14:35 - 11:20
IDA
-
LHR
14h 45m
2 stops
£834United Airlines
Mon, 2 Mar - Mon, 9 Mar

United Airlines flights from London Heathrow Airport to Idaho Falls

Our best United Airlines deals on London Heathrow Airport to Idaho Falls flight tickets
United Airlines
2 Mar
LHR09:30London Heathrow
18h 28m
2 stops
IDA20:58Idaho Falls Fanning Field
9 Mar
IDA10:50Idaho Falls Fanning Field
16h 50m
1 stop
LHR09:40London Heathrow
£828
United Airlines
2 Mar
LHR09:30London Heathrow
18h 28m
2 stops
IDA20:58Idaho Falls Fanning Field
9 Mar
IDA14:35Idaho Falls Fanning Field
14h 45m
2 stops
LHR11:20London Heathrow
£834
United Airlines
18 Feb
LHR07:30London Heathrow
33h 18m
2 stops
IDA09:48Idaho Falls Fanning Field
22 Feb
IDA17:33Idaho Falls Fanning Field
33h 07m
1 stop
LHR09:40London Heathrow
£842

KLM flights from London Heathrow Airport to Idaho Falls

Our best KLM deals on London Heathrow Airport to Idaho Falls flight tickets
KLM
16 Mar
LHR20:25London Heathrow
27h 50m
2 stops
IDA18:15Idaho Falls Fanning Field
29 Mar
IDA18:55Idaho Falls Fanning Field
32h 05m
1 stop
LHR10:00London Heathrow
£724
KLM
16 Mar
LHR08:40London Heathrow
39h 35m
2 stops
IDA18:15Idaho Falls Fanning Field
29 Mar
IDA18:55Idaho Falls Fanning Field
35h 10m
2 stops
LHR13:05London Heathrow
£766

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 3 February 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

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/3

12:20-22:52

1 stop16h 32m

Idaho Falls Fanning Field

Wed 25/3

06:00-08:45

2 stops20h 45m

£588

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/3

12:20-22:52

1 stop16h 32m

Idaho Falls Fanning Field

Wed 25/3

06:00-10:30

1 stop22h 30m

£706

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/3

08:55-22:16

2 stops19h 21m

Idaho Falls Fanning Field

Wed 25/3

13:10-10:30

2 stops15h 20m

£707

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 16/3

20:25-18:15

2 stops27h 50m

Idaho Falls Fanning Field

Sun 29/3

18:55-10:00

1 stop32h 05m

£724

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 16/3

14:50-13:48

1 stop28h 58m

Idaho Falls Fanning Field

Sun 29/3

14:18-08:05

1 stop34h 47m

£727

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 17/3

17:50-18:15

2 stops30h 25m

Idaho Falls Fanning Field

Tue 24/3

13:10-10:00

1 stop14h 50m

£736

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 17/3

10:45-18:15

1 stop13h 30m

Idaho Falls Fanning Field

Tue 24/3

05:45-10:00

1 stop22h 15m

£739

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 16/3

08:40-18:15

2 stops39h 35m

Idaho Falls Fanning Field

Sun 29/3

18:55-13:05

2 stops35h 10m

£766

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 2/3

09:30-20:58

2 stops18h 28m

Idaho Falls Fanning Field

Mon 9/3

10:50-09:40

1 stop16h 50m

£828

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 2/3

09:30-20:58

2 stops18h 28m

Idaho Falls Fanning Field

Mon 9/3

14:35-11:20

2 stops14h 45m

£834

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Idaho Falls from

How to get the cheapest flight ticket from London Heathrow Airport to Idaho Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Which airlines fly to Idaho Falls?

United Airlines, Lufthansa and Virgin Atlantic are the top three most popular airlines that fly to Idaho Falls from London Heathrow Airport according to our data. United Airlines is the first choice among our users, with 57% of people opting to fly with this airline when travelling to Idaho Falls. Keep in mind that there are 3 different airlines that fly to Idaho Falls on a routine basis, so you have a few additional options to choose from.

When to book flights from London Heathrow Airport to Idaho Falls

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Idaho Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Idaho Falls (LHR to IDA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Idaho Falls

Fastest flight time

18h 28m

Direct flights

None
The fastest flight from London Heathrow Airport to Idaho Falls takes 18h 28m
There are no direct flights from London Heathrow Airport to Idaho Falls. There are no popular flight routes from London Heathrow Airport to Idaho Falls.
Search flight deals

  • How far is London Heathrow to Idaho Falls Fanning Field by plane?

    There are 4706.6 mi between London Heathrow and Idaho Falls Fanning Field. Typically, this will take 18h 28m by plane in normal conditions.

  • When did momondo last update prices for flights from London Heathrow Airport to Idaho Falls Fanning Field Airport?

    Prices for flights from London Heathrow Airport to Idaho Falls Fanning Field Airport were last updated today.

  • How many operators does momondo search for flights from London Heathrow Airport to Idaho Falls Fanning Field Airport?

  • How old do you have to be to fly from London Heathrow Airport to Idaho Falls Fanning Field Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The travel and health documents you'll need for your trip to Idaho Falls Fanning Field Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho Falls Fanning Field Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from London Heathrow Airport to Idaho Falls?

Best airlines flying from London Heathrow Airport to Idaho Falls

Compare and see reviews for airlines that fly from London Heathrow Airport to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom £628Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
United AirlinesPriceFrom £744Free CancellationRating
7.4
9,231 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Idaho Falls?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Idaho Falls from London.

Can I find flights from London to Idaho Falls with flexible booking policies on momondo?

All flight searches from London to Idaho Falls on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to Idaho Falls?

momondo helps you find the best flight between London and Idaho Falls by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Idaho Falls right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Idaho Falls, momondo offers a useful price alert feature which will track prices for flights to Idaho Falls from London and alert you when they change.

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