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Cheap flights from London to Idaho Falls from £605

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 9/3. 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 to Idaho Falls

Cheap return flights

Enter your travel dates to find the best prices.
American Airlines Logo
11:25 - 13:48
LHR
-
IDA
32h 23m
2 stops
American Airlines Logo
14:18 - 08:35
IDA
-
LHR
36h 17m
2 stops
£605American Airlines
Mon, 9 Mar - Sun, 15 Mar
Virgin Atlantic Logo
10:45 - 17:49
LHR
-
IDA
14h 04m
1 stop
Virgin Atlantic Logo
05:25 - 10:00
IDA
-
LHR
21h 35m
1 stop
£609Virgin Atlantic
Tue, 17 Feb - Tue, 3 Mar
American Airlines Logo
16:10 - 13:48
LHR
-
IDA
27h 38m
1 stop
American Airlines Logo
14:18 - 10:10
IDA
-
LHR
37h 52m
2 stops
£615American Airlines
Tue, 10 Mar - Sun, 15 Mar
Virgin Atlantic Logo
12:20 - 22:21
LHR
-
IDA
17h 01m
2 stops
Virgin Atlantic Logo
13:10 - 11:55
IDA
-
LHR
15h 45m
2 stops
£618Virgin Atlantic
Tue, 17 Feb - Tue, 3 Mar
Delta Logo
11:45 - 12:27
LHR
-
IDA
54h 42m
2 stops
Delta Logo
18:55 - 10:00
IDA
-
LHR
33h 05m
1 stop
£621Delta
Sun, 8 Mar - Sun, 15 Mar
Delta Logo
10:45 - 12:27
LHR
-
IDA
31h 42m
1 stop
Delta Logo
18:55 - 10:00
IDA
-
LHR
33h 05m
1 stop
£633Delta
Tue, 10 Mar - Sun, 15 Mar
Finnair Logo
14:50 - 13:48
LHR
-
IDA
28h 58m
1 stop
Finnair Logo
14:18 - 06:20
IDA
-
LHR
34h 02m
2 stops
£637Finnair
Mon, 9 Mar - Sat, 14 Mar
American Airlines Logo
14:25 - 23:24
LHR
-
IDA
14h 59m
1 stop
American Airlines Logo
14:18 - 11:40
IDA
-
LHR
15h 22m
1 stop
£646American Airlines
Mon, 9 Mar - Sun, 15 Mar
Delta Logo
06:20 - 18:15
LHR
-
IDA
17h 55m
2 stops
Delta Logo
18:55 - 07:05
IDA
-
LHR
30h 10m
2 stops
£654Delta
Mon, 9 Mar - Sat, 14 Mar
Delta Logo
10:45 - 18:15
LHR
-
IDA
13h 30m
1 stop
Delta Logo
18:55 - 10:00
IDA
-
LHR
33h 05m
1 stop
£663Delta
Sun, 8 Mar - Sun, 15 Mar

American Airlines flights from London to Idaho Falls

Our best American Airlines deals on London to Idaho Falls flight tickets
American Airlines
9 Mar
LHR11:25London Heathrow
32h 23m
2 stops
IDA13:48Idaho Falls Fanning Field
15 Mar
IDA14:18Idaho Falls Fanning Field
36h 17m
2 stops
LHR08:35London Heathrow
£605
American Airlines
10 Mar
LHR14:10London Heathrow
29h 38m
2 stops
IDA13:48Idaho Falls Fanning Field
15 Mar
IDA14:18Idaho Falls Fanning Field
33h 57m
2 stops
LHR06:15London Heathrow
£615
American Airlines
9 Mar
LHR14:25London Heathrow
14h 59m
1 stop
IDA23:24Idaho Falls Fanning Field
15 Mar
IDA14:18Idaho Falls Fanning Field
15h 22m
1 stop
LHR11:40London Heathrow
£646

Virgin Atlantic flights from London to Idaho Falls

Our best Virgin Atlantic deals on London to Idaho Falls flight tickets
Virgin Atlantic
17 Feb
LHR10:45London Heathrow
14h 04m
1 stop
IDA17:49Idaho Falls Fanning Field
3 Mar
IDA13:10Idaho Falls Fanning Field
15h 45m
2 stops
LHR11:55London Heathrow
£609
Virgin Atlantic
17 Feb
LHR12:20London Heathrow
17h 01m
2 stops
IDA22:21Idaho Falls Fanning Field
3 Mar
IDA13:10Idaho Falls Fanning Field
15h 45m
2 stops
LHR11:55London Heathrow
£618
Virgin Atlantic
2 Feb
LHR09:40London Heathrow
20h 17m
2 stops
IDA22:57Idaho Falls Fanning Field
15 Feb
IDA05:25Idaho Falls Fanning Field
19h 25m
2 stops
LHR07:50London Heathrow
£651

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 25 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

Mon 9/3

11:25-13:48

2 stops32h 23m

Idaho Falls Fanning Field

Sun 15/3

14:18-08:35

2 stops36h 17m

£605

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 17/2

10:45-17:49

1 stop14h 04m

Idaho Falls Fanning Field

Tue 3/3

05:25-10:00

1 stop21h 35m

£609

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 10/3

16:10-13:48

1 stop27h 38m

Idaho Falls Fanning Field

Sun 15/3

14:18-10:10

2 stops37h 52m

£615

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 17/2

12:20-22:21

2 stops17h 01m

Idaho Falls Fanning Field

Tue 3/3

13:10-11:55

2 stops15h 45m

£618

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sun 8/3

11:45-12:27

2 stops54h 42m

Idaho Falls Fanning Field

Sun 15/3

18:55-10:00

1 stop33h 05m

£621

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 10/3

10:45-12:27

1 stop31h 42m

Idaho Falls Fanning Field

Sun 15/3

18:55-10:00

1 stop33h 05m

£633

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 9/3

14:50-13:48

1 stop28h 58m

Idaho Falls Fanning Field

Sat 14/3

14:18-06:20

2 stops34h 02m

£637

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 9/3

14:25-23:24

1 stop14h 59m

Idaho Falls Fanning Field

Sun 15/3

14:18-11:40

1 stop15h 22m

£646

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 9/3

06:20-18:15

2 stops17h 55m

Idaho Falls Fanning Field

Sat 14/3

18:55-07:05

2 stops30h 10m

£654

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sun 8/3

10:45-18:15

1 stop13h 30m

Idaho Falls Fanning Field

Sun 15/3

18:55-10:00

1 stop33h 05m

£663

Flights are sorted by cheapest return flights first.

Showing 1-10 of 19 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, American Airlines, and KLM 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 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 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

17h 44m

Direct flights

None
The fastest flight from London to Idaho Falls takes 17h 44m
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 17h 44m.

  • 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 £630Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
United AirlinesPriceFrom £746Free CancellationRating
7.4
9,199 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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