Flights to Idaho Falls Fanning Field

£431 Cheap flights to Idaho Falls

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Idaho Falls departing on 24/9. 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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Find the cheapest flights from the United Kingdom to Idaho Falls

Cheap return flights

 Logo
13:05 - 22:39LHR-IDA
16h 34m2 stops
 Logo
06:13 - 11:55IDA-LHR
46h 42m2 stops
Wed, 10 Sep - Wed, 17 Sep
 Logo
13:05 - 22:39LHR-IDA
16h 34m2 stops
 Logo
06:13 - 11:55IDA-LHR
46h 42m2 stops
Wed, 10 Sep - Wed, 17 Sep
 Logo
13:05 - 22:39LHR-IDA
16h 34m2 stops
 Logo
15:57 - 11:55IDA-LHR
36h 58m2 stops
Wed, 10 Sep - Wed, 17 Sep
Iberia Logo
16:25 - 13:03LHR-IDA
27h 38m1 stop
Iberia Logo
12:54 - 10:30IDA-LHR
14h 36m1 stop
£647Iberia
Find Deal
Wed, 10 Sep - Wed, 17 Sep
British Airways Logo
09:15 - 21:25LHR-IDA
19h 10m2 stops
British Airways Logo
06:44 - 07:45IDA-LHR
18h 01m2 stops
£662British Airways
Find Deal
Wed, 10 Sep - Wed, 17 Sep
British Airways Logo
08:20 - 21:25LHR-IDA
20h 05m1 stop
British Airways Logo
06:44 - 07:50IDA-LHR
18h 06m2 stops
£664British Airways
Find Deal
Wed, 10 Sep - Wed, 17 Sep
Iberia Logo
09:15 - 21:25LHR-IDA
19h 10m2 stops
Iberia Logo
13:35 - 10:50IDA-LHR
14h 15m1 stop
£672Iberia
Find Deal
Wed, 10 Sep - Wed, 17 Sep
United Airlines Logo
11:10 - 22:52LHR-IDA
18h 42m2 stops
United Airlines Logo
10:50 - 10:50IDA-LHR
17h 00m2 stops
£722United Airlines
Find Deal
Sat, 22 Nov - Wed, 26 Nov
United Airlines Logo
06:35 - 21:03LHR-IDA
21h 28m2 stops
United Airlines Logo
10:50 - 10:50IDA-LHR
17h 00m2 stops
£722United Airlines
Find Deal
Sat, 22 Nov - Wed, 26 Nov
Virgin Atlantic Logo
09:40 - 22:27LHR-IDA
19h 47m2 stops
Virgin Atlantic Logo
13:06 - 14:15IDA-LHR
18h 09m2 stops
£736Virgin Atlantic
Find Deal
Wed, 10 Sep - Wed, 17 Sep

momondo Fare Finder

 
Locate flights to Idaho Falls Fanning Field that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 30 July 2025.
Use the filters below to find and compare flights to Idaho Falls that are best for you.

Fly from

Route

Depart

Return

Price

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 10/9

13:05-22:39

2 stops16h 34m

Idaho Falls Fanning Field

Wed 17/9

06:13-11:55

2 stops46h 42m

£576

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 10/9

13:05-22:39

2 stops16h 34m

Idaho Falls Fanning Field

Wed 17/9

06:13-11:55

2 stops46h 42m

£609

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 10/9

13:05-22:39

2 stops16h 34m

Idaho Falls Fanning Field

Wed 17/9

15:57-11:55

2 stops36h 58m

£617

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 10/9

16:25-13:03

1 stop27h 38m

Idaho Falls Fanning Field

Wed 17/9

12:54-10:30

1 stop14h 36m

£647

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 10/9

09:15-21:25

2 stops19h 10m

Idaho Falls Fanning Field

Wed 17/9

06:44-07:45

2 stops18h 01m

£662

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 10/9

08:20-21:25

1 stop20h 05m

Idaho Falls Fanning Field

Wed 17/9

06:44-07:50

2 stops18h 06m

£664

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 10/9

09:15-21:25

2 stops19h 10m

Idaho Falls Fanning Field

Wed 17/9

13:35-10:50

1 stop14h 15m

£672

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 22/11

11:10-22:52

2 stops18h 42m

Idaho Falls Fanning Field

Wed 26/11

10:50-10:50

2 stops17h 00m

£722

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 22/11

06:35-21:03

2 stops21h 28m

Idaho Falls Fanning Field

Wed 26/11

10:50-10:50

2 stops17h 00m

£722

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 10/9

09:40-22:27

2 stops19h 47m

Idaho Falls Fanning Field

Wed 17/9

13:06-14:15

2 stops18h 09m

£736

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

Idaho Falls flights insights and trends

Explore insights for your Idaho Falls flight to craft the best travel plan

What is the cheapest month to fly to Idaho Falls?

The cheapest month to fly to Idaho Falls from United Kingdom is in November. Flight prices, which tend to average around £639, are often lower during this time because this is during the off-season. The month of February is another great option to travel to Idaho Falls, with average flight prices from United Kingdom averaging around £659.

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 United Kingdom. The lowest ticket price found for a Tuesday departure recently was £693. 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 United Kingdom because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £957.

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 £780. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £895 on average. Flights to Idaho Falls from United Kingdom in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

Cheapest flights to Idaho Falls Fanning Field

Find the cheapest flights to Idaho Falls Fanning Field from your nearest city or airport
CHEAPEST MONTH TO FLY TO IDAHO FALLS FROM LONDON HEATHROW AIRPORTFebruary8% cheaperFlying from London Heathrow Airport to Idaho Falls costs on average just £653 in February
MOST EXPENSIVE MONTH TO FLY TO IDAHO FALLS FROM LONDON HEATHROW AIRPORTJuly72% more expensiveIt costs about £1,213 for flights to Idaho Falls from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO IDAHO FALLS FROM LONDON HEATHROW AIRPORTMay1,250% more users visitedMore momondo users searched in flights to Idaho Falls from London Heathrow Airport in May than any other month

Cheap Idaho Falls flight deals and tips

Summary info about Idaho Falls flight prices, duration and airlines

Best One-Way Price

£431

Best Round-Trip Price

£576

Fastest flight time

19h 49m
The best one-way flight price to Idaho Falls from United Kingdom in the last 72 hours is £431 (London Heathrow to Idaho Falls Fanning Field).
The best round-trip flight price to Idaho Falls from United Kingdom in the last 72 hours is £576 (London Heathrow to Idaho Falls Fanning Field).
The fastest flight to Idaho Falls from United Kingdom takes 19h 49m (London Heathrow to Idaho Falls Fanning Field).

Frequently asked questions about flying to Idaho Falls

Is there an alternative airport near Idaho Falls?

Those flying to Idaho Falls could potentially find better pricing at Idaho Falls Fanning Field Airport (4 mi from Idaho Falls city centre), Pocatello Airport (48 mi from Idaho Falls city centre) or West Yellowstone Airport (96 mi from Idaho Falls city centre) depending on the month and departure airport.

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

Prices for flights to Idaho Falls Fanning Field Airport are updated daily.

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

How old do you have to be to fly 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 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.


Why use momondo?

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

It is quick and easy to find flights to Idaho Falls 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 to Idaho Falls with flexible booking policies on momondo?

momondo does allow users to show only those flights to Idaho Falls which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights to Idaho Falls?

Once you have performed a search for flights to Idaho Falls, momondo helps you find the right flight by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track flight prices for Idaho Falls and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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