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Cheap flights from London to Idaho Falls from £512

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Idaho Falls departing on 15/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap return flights

Enter your travel dates to find the best prices.
Virgin Atlantic Logo
12:20 - 22:19LHR-IDA
16h 59m2 stops
Virgin Atlantic Logo
06:00 - 20:10IDA-LHR
31h 10m2 stops
£755Virgin Atlantic
Find Deal
jeu., 13 nov. - lun., 17 nov.
KLM Logo
20:55 - 18:14LHR-IDA
28h 19m2 stops
KLM Logo
18:50 - 09:50IDA-LHR
32h 00m1 stop
£758KLM
Find Deal
mar., 21 avr. - ven., 1 mai
Multiple Airlines Logo
16:30 - 13:28LHR-IDA
27h 58m1 stop
Multiple Airlines Logo
13:58 - 10:00IDA-LHR
13h 02m1 stop
£766Multiple Airlines
Find Deal
jeu., 13 nov. - lun., 17 nov.
Multiple Airlines Logo
16:25 - 12:27LHR-IDA
27h 02m1 stop
Multiple Airlines Logo
13:45 - 14:25IDA-LHR
17h 40m1 stop
£768Multiple Airlines
Find Deal
mar., 21 avr. - ven., 1 mai
Delta Logo
06:20 - 18:17LHR-IDA
18h 57m2 stops
Delta Logo
13:15 - 10:00IDA-LHR
13h 45m1 stop
£772Delta
Find Deal
sam., 22 nov. - mer., 26 nov.
Delta Logo
06:20 - 18:17LHR-IDA
18h 57m2 stops
Delta Logo
06:00 - 06:50IDA-LHR
17h 50m2 stops
£774Delta
Find Deal
sam., 22 nov. - mer., 26 nov.
Delta Logo
10:45 - 22:33LHR-IDA
18h 48m1 stop
Delta Logo
13:15 - 10:00IDA-LHR
13h 45m1 stop
£781Delta
Find Deal
sam., 22 nov. - mer., 26 nov.
Delta Logo
10:45 - 22:33LHR-IDA
18h 48m1 stop
Delta Logo
13:15 - 10:00IDA-LHR
13h 45m1 stop
£783Delta
Find Deal
sam., 22 nov. - mer., 26 nov.
Multiple Airlines Logo
11:55 - 23:59LGW-IDA
19h 04m2 stops
Multiple Airlines Logo
15:50 - 10:55IDA-LGW
36h 05m2 stops
£796Multiple Airlines
Find Deal
jeu., 13 nov. - lun., 17 nov.
Multiple Airlines Logo
13:05 - 22:35LHR-IDA
16h 30m2 stops
Multiple Airlines Logo
06:15 - 20:20IDA-LHR
31h 05m2 stops
£2,844Multiple Airlines
Find Deal
mar., 21 avr. - ven., 1 mai

Delta flights from London to Idaho Falls

Our best Delta deals on London to Idaho Falls flight tickets
Delta
22 Nov
LHR06:20London Heathrow
18h 57m
2 stops
IDA18:17Idaho Falls Fanning Field
26 Nov
IDA13:15Idaho Falls Fanning Field
13h 45m
1 stop
LHR10:00London Heathrow
£772
Find similar
Delta
22 Nov
LHR06:20London Heathrow
18h 57m
2 stops
IDA18:17Idaho Falls Fanning Field
26 Nov
IDA06:00Idaho Falls Fanning Field
17h 50m
2 stops
LHR06:50London Heathrow
£774
Find similar
Delta
22 Nov
LHR10:45London Heathrow
18h 48m
1 stop
IDA22:33Idaho Falls Fanning Field
26 Nov
IDA13:15Idaho Falls Fanning Field
13h 45m
1 stop
LHR10:00London Heathrow
£781
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 30 octobre 2025.
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

jeu. 13/11

12:20-22:19

2 stops16h 59m

Idaho Falls Fanning Field

lun. 17/11

06:00-20:10

2 stops31h 10m

£755

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

mar. 21/4

20:55-18:14

2 stops28h 19m

Idaho Falls Fanning Field

ven. 1/5

18:50-09:50

1 stop32h 00m

£758

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

jeu. 13/11

16:30-13:28

1 stop27h 58m

Idaho Falls Fanning Field

lun. 17/11

13:58-10:00

1 stop13h 02m

£766

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

mar. 21/4

16:25-12:27

1 stop27h 02m

Idaho Falls Fanning Field

ven. 1/5

13:45-14:25

1 stop17h 40m

£768

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

sam. 22/11

06:20-18:17

2 stops18h 57m

Idaho Falls Fanning Field

mer. 26/11

13:15-10:00

1 stop13h 45m

£772

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

sam. 22/11

06:20-18:17

2 stops18h 57m

Idaho Falls Fanning Field

mer. 26/11

06:00-06:50

2 stops17h 50m

£774

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

sam. 22/11

10:45-22:33

1 stop18h 48m

Idaho Falls Fanning Field

mer. 26/11

13:15-10:00

1 stop13h 45m

£781

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

sam. 22/11

10:45-22:33

1 stop18h 48m

Idaho Falls Fanning Field

mer. 26/11

13:15-10:00

1 stop13h 45m

£783

LondonIdaho Falls

LGW - IDA

LGWIDA

London Gatwick

jeu. 13/11

11:55-23:59

2 stops19h 04m

Idaho Falls Fanning Field

lun. 17/11

15:50-10:55

2 stops36h 05m

£796

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

mar. 21/4

13:05-22:35

2 stops16h 30m

Idaho Falls Fanning Field

ven. 1/5

06:15-20:20

2 stops31h 05m

£2,844

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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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 day to depart on your flight to Idaho Falls?

According to our data, Tuesday is the cheapest day to fly to Idaho Falls from London. The lowest ticket price found for a Tuesday departure recently was £700. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Saturday is the most expensive day to depart from London because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £966.

What is the cheapest time of day to depart on your flight to Idaho Falls?

The cheapest time of day to fly to Idaho Falls is in the afternoon when flights can be purchased for as low as £787. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £903 on average. Flights to Idaho Falls from London in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

Direct flights

None
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 13h 05m.

  • 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 £659Free CancellationRating
7.5
670 reviews
Search Virgin Atlantic flights
United AirlinesPriceFrom £769Free CancellationRating
7.4
8,998 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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