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Cheap flights from London to Idaho Falls from £594

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 2/3. 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.
Multiple Airlines Logo
06:30 - 16:43
LHR
-
IDA
17h 13m
2 stops
Multiple Airlines Logo
17:20 - 15:45
IDA
-
LHR
16h 25m
1 stop
£594Multiple Airlines
Mon, 2 Mar - Mon, 9 Mar
Virgin Atlantic Logo
17:50 - 17:49
LHR
-
IDA
30h 59m
2 stops
Virgin Atlantic Logo
13:11 - 10:30
IDA
-
LHR
15h 19m
2 stops
£631Virgin Atlantic
Mon, 2 Mar - Mon, 9 Mar
Multiple Airlines Logo
14:25 - 23:24
LHR
-
IDA
15h 59m
1 stop
Multiple Airlines Logo
14:18 - 12:15
IDA
-
LHR
15h 57m
1 stop
£653Multiple Airlines
Mon, 2 Mar - Mon, 9 Mar
Delta Logo
06:20 - 22:57
LHR
-
IDA
23h 37m
2 stops
Delta Logo
13:15 - 11:40
IDA
-
LHR
15h 25m
2 stops
£666Delta
Fri, 30 Jan - Mon, 2 Feb
American Airlines Logo
16:30 - 13:37
LHR
-
IDA
28h 07m
1 stop
American Airlines Logo
14:07 - 11:40
IDA
-
LHR
14h 33m
1 stop
£682American Airlines
Fri, 30 Jan - Mon, 2 Feb
United Airlines Logo
08:30 - 09:48
LHR
-
IDA
32h 18m
2 stops
United Airlines Logo
06:35 - 09:40
IDA
-
LHR
20h 05m
1 stop
£726United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
06:30 - 09:48
LHR
-
IDA
34h 18m
2 stops
United Airlines Logo
06:35 - 09:40
IDA
-
LHR
20h 05m
1 stop
£727United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
07:30 - 09:48
LHR
-
IDA
33h 18m
2 stops
United Airlines Logo
06:35 - 09:40
IDA
-
LHR
20h 05m
1 stop
£728United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
06:30 - 09:48
LHR
-
IDA
34h 18m
2 stops
United Airlines Logo
17:33 - 05:55
IDA
-
LHR
29h 22m
2 stops
£743United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
07:30 - 09:48
LHR
-
IDA
33h 18m
2 stops
United Airlines Logo
17:33 - 05:55
IDA
-
LHR
29h 22m
2 stops
£744United Airlines
Wed, 18 Feb - Sun, 22 Feb

Delta flights from London to Idaho Falls

Our best Delta deals on London to Idaho Falls flight tickets
Delta
30 Jan
LHR06:20London Heathrow
23h 37m
2 stops
IDA22:57Idaho Falls Fanning Field
2 Feb
IDA13:15Idaho Falls Fanning Field
15h 25m
2 stops
LHR11:40London Heathrow
£666
Delta
1 Jul
LHR16:05London Heathrow
29h 22m
2 stops
IDA14:27Idaho Falls Fanning Field
6 Jul
IDA18:50Idaho Falls Fanning Field
18h 20m
2 stops
LHR20:10London Heathrow
£757

United Airlines flights from London to Idaho Falls

Our best United Airlines deals on London to Idaho Falls flight tickets
United Airlines
18 Feb
LHR08:30London Heathrow
32h 18m
2 stops
IDA09:48Idaho Falls Fanning Field
22 Feb
IDA06:35Idaho Falls Fanning Field
20h 05m
1 stop
LHR09:40London Heathrow
£726
United Airlines
18 Feb
LHR06:30London Heathrow
34h 18m
2 stops
IDA09:48Idaho Falls Fanning Field
22 Feb
IDA06:35Idaho Falls Fanning Field
20h 05m
1 stop
LHR09:40London Heathrow
£727
United Airlines
18 Feb
LHR07:30London Heathrow
33h 18m
2 stops
IDA09:48Idaho Falls Fanning Field
22 Feb
IDA06:35Idaho Falls Fanning Field
20h 05m
1 stop
LHR09:40London Heathrow
£728

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 18 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 2/3

06:30-16:43

2 stops17h 13m

Idaho Falls Fanning Field

Mon 9/3

17:20-15:45

1 stop16h 25m

£594

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 2/3

17:50-17:49

2 stops30h 59m

Idaho Falls Fanning Field

Mon 9/3

13:11-10:30

2 stops15h 19m

£631

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 2/3

14:25-23:24

1 stop15h 59m

Idaho Falls Fanning Field

Mon 9/3

14:18-12:15

1 stop15h 57m

£653

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Fri 30/1

06:20-22:57

2 stops23h 37m

Idaho Falls Fanning Field

Mon 2/2

13:15-11:40

2 stops15h 25m

£666

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Fri 30/1

16:30-13:37

1 stop28h 07m

Idaho Falls Fanning Field

Mon 2/2

14:07-11:40

1 stop14h 33m

£682

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

08:30-09:48

2 stops32h 18m

Idaho Falls Fanning Field

Sun 22/2

06:35-09:40

1 stop20h 05m

£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

06:35-09:40

1 stop20h 05m

£727

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

07:30-09:48

2 stops33h 18m

Idaho Falls Fanning Field

Sun 22/2

06:35-09:40

1 stop20h 05m

£728

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

06:30-09:48

2 stops34h 18m

Idaho Falls Fanning Field

Sun 22/2

17:33-05:55

2 stops29h 22m

£743

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

07:30-09:48

2 stops33h 18m

Idaho Falls Fanning Field

Sun 22/2

17:33-05:55

2 stops29h 22m

£744

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 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 is the most popular carrier 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

14h 14m

Direct flights

None
The fastest flight from London to Idaho Falls takes 14h 14m
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 14h 14m.

  • 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 £642Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
United AirlinesPriceFrom £760Free CancellationRating
7.4
9,176 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.

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