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Cheap flights from London 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 to Idaho Falls departing on 18/2. 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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Find the cheapest flights from London to Idaho Falls

Cheap return flights

Enter your travel dates to find the best prices.
Finnair Logo
17:05 - 13:48
LHR
-
IDA
27h 43m2 stops
Finnair Logo
14:18 - 08:15
IDA
-
LHR
34h 57m1 stop
£588Finnair
Wed, 18 Feb - Wed, 25 Feb
Iberia Logo
16:30 - 13:48
LHR
-
IDA
28h 18m1 stop
Iberia Logo
14:18 - 11:40
IDA
-
LHR
14h 22m1 stop
£600Iberia
Wed, 18 Feb - Wed, 25 Feb
Virgin Atlantic Logo
17:05 - 22:21
LHR
-
IDA
36h 16m2 stops
Virgin Atlantic Logo
13:10 - 11:55
IDA
-
LHR
15h 45m2 stops
£601Virgin Atlantic
Tue, 17 Feb - Tue, 24 Feb
Virgin Atlantic Logo
10:45 - 22:21
LHR
-
IDA
18h 36m1 stop
Virgin Atlantic Logo
13:10 - 10:00
IDA
-
LHR
13h 50m1 stop
£614Virgin Atlantic
Tue, 17 Feb - Tue, 24 Feb
United Airlines Logo
06:30 - 09:48
LHR
-
IDA
34h 18m2 stops
United Airlines Logo
10:45 - 11:15
IDA
-
LHR
17h 30m2 stops
£726United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
06:30 - 09:48
LHR
-
IDA
34h 18m2 stops
United Airlines Logo
17:33 - 09:40
IDA
-
LHR
33h 07m1 stop
£727United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
15:30 - 20:58
LHR
-
IDA
36h 28m2 stops
United Airlines Logo
17:33 - 07:30
IDA
-
LHR
30h 57m2 stops
£741United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
09:30 - 09:48
LHR
-
IDA
31h 18m2 stops
United Airlines Logo
10:45 - 07:55
IDA
-
LHR
14h 10m2 stops
£743United Airlines
Tue, 17 Feb - Tue, 24 Feb
United Airlines Logo
13:30 - 20:58
LHR
-
IDA
38h 28m2 stops
United Airlines Logo
17:33 - 14:45
IDA
-
LHR
38h 12m2 stops
£747United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
11:35 - 20:58
LHR
-
IDA
16h 23m1 stop
United Airlines Logo
10:45 - 09:40
IDA
-
LHR
15h 55m1 stop
£749United Airlines
Wed, 18 Feb - Sun, 22 Feb

United Airlines flights from London to Idaho Falls

Our best United Airlines deals on London to Idaho Falls flight tickets
United Airlines
18 Feb
LHR06:30London Heathrow
34h 18m
2 stops
IDA09:48Idaho Falls Fanning Field
22 Feb
IDA10:45Idaho Falls Fanning Field
17h 30m
2 stops
LHR11:15London Heathrow
£726
Find similar
United Airlines
18 Feb
LHR06:30London Heathrow
34h 18m
2 stops
IDA09:48Idaho Falls Fanning Field
22 Feb
IDA17:33Idaho Falls Fanning Field
33h 07m
1 stop
LHR09:40London Heathrow
£727
Find similar
United Airlines
18 Feb
LHR15:30London Heathrow
36h 28m
2 stops
IDA20:58Idaho Falls Fanning Field
22 Feb
IDA17:33Idaho Falls Fanning Field
30h 57m
2 stops
LHR07:30London Heathrow
£741
Find similar

Virgin Atlantic flights from London to Idaho Falls

Our best Virgin Atlantic deals on London to Idaho Falls flight tickets
Virgin Atlantic
17 Feb
LHR17:05London Heathrow
36h 16m
2 stops
IDA22:21Idaho Falls Fanning Field
24 Feb
IDA05:25Idaho Falls Fanning Field
21h 35m
1 stop
LHR10:00London Heathrow
£601
Find similar
Virgin Atlantic
17 Feb
LHR10:45London Heathrow
18h 36m
1 stop
IDA22:21Idaho Falls Fanning Field
24 Feb
IDA13:10Idaho Falls Fanning Field
13h 50m
1 stop
LHR10:00London Heathrow
£614
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London 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 4 January 2026.
Use the filters below to find and compare flights from London to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

17:05-13:48

2 stops27h 43m

Idaho Falls Fanning Field

Wed 25/2

14:18-08:15

1 stop34h 57m

£588

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

16:30-13:48

1 stop28h 18m

Idaho Falls Fanning Field

Wed 25/2

14:18-11:40

1 stop14h 22m

£600

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 17/2

17:05-22:21

2 stops36h 16m

Idaho Falls Fanning Field

Tue 24/2

13:10-11:55

2 stops15h 45m

£601

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 17/2

10:45-22:21

1 stop18h 36m

Idaho Falls Fanning Field

Tue 24/2

13:10-10:00

1 stop13h 50m

£614

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

06:30-09:48

2 stops34h 18m

Idaho Falls Fanning Field

Sun 22/2

10:45-11:15

2 stops17h 30m

£726

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

06:30-09:48

2 stops34h 18m

Idaho Falls Fanning Field

Sun 22/2

17:33-09:40

1 stop33h 07m

£727

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

15:30-20:58

2 stops36h 28m

Idaho Falls Fanning Field

Sun 22/2

17:33-07:30

2 stops30h 57m

£741

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 17/2

09:30-09:48

2 stops31h 18m

Idaho Falls Fanning Field

Tue 24/2

10:45-07:55

2 stops14h 10m

£743

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

13:30-20:58

2 stops38h 28m

Idaho Falls Fanning Field

Sun 22/2

17:33-14:45

2 stops38h 12m

£747

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

11:35-20:58

1 stop16h 23m

Idaho Falls Fanning Field

Sun 22/2

10:45-09:40

1 stop15h 55m

£749

Flights are sorted by cheapest return flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Idaho Falls from

How to get the cheapest flight ticket from London 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

What is the cheapest airline that flies from London to Idaho Falls Fanning Field?

Delta and American Airlines are the most popular carriers operating from London to Idaho Falls Fanning Field

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 according to our data. United Airlines is the first choice among our users, with 55% 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 to Idaho Falls

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

Cheap London to Idaho Falls (LON to IDA) flight deals and tips

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

Fastest flight time

18h 41m

Direct flights

None
The fastest flight from London to Idaho Falls takes 18h 41m
There are no direct flights from London to Idaho Falls. There are no popular flight routes from London to Idaho Falls.
Search flight deals

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

    The distance between London and Idaho Falls Fanning Field is about 4715.6 mi. By plane, this route typically takes 18h 41m.

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

    Prices for flights from London to Idaho Falls Fanning Field Airport are refreshed on a daily basis.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London 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 required for your trip to Idaho Falls Fanning Field Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho Falls Fanning Field Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from London to Idaho Falls

Compare and see reviews for airlines that fly from London to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom £647Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
United AirlinesPriceFrom £756Free CancellationRating
7.4
9,137 reviews
Search United Airlines flights

Why use momondo?

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

It is quick and easy to find London to Idaho Falls flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Idaho Falls that suits you.

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

Flights from London to Idaho Falls with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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.

An easier way to manage your Idaho Falls trip

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