Flights to Idaho Falls Fanning Field

£613 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 5/6. 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

Enter your travel dates to find the best prices.
Multiple Airlines Logo
14:25 - 22:36
LHR
-
IDA
15h 11m1 stop
Multiple Airlines Logo
14:07 - 12:15
IDA
-
LHR
15h 08m1 stop
£783Multiple Airlines
Sat, 24 Jan - Sat, 31 Jan
Delta Logo
06:20 - 22:57
LHR
-
IDA
23h 37m2 stops
Delta Logo
13:15 - 10:00
IDA
-
LHR
13h 45m1 stop
£784Delta
Sat, 24 Jan - Sat, 31 Jan
Multiple Airlines Logo
11:55 - 22:59
LGW
-
IDA
18h 04m2 stops
Multiple Airlines Logo
09:00 - 10:55
IDA
-
LGW
18h 55m2 stops
£788Multiple Airlines
Sat, 24 Jan - Sat, 31 Jan
United Airlines Logo
07:00 - 09:28
MAN
-
IDA
33h 28m2 stops
United Airlines Logo
14:35 - 17:20
IDA
-
MAN
43h 45m2 stops
£954United Airlines
Wed, 29 Apr - Sun, 3 May
United Airlines Logo
07:00 - 09:28
MAN
-
IDA
33h 28m2 stops
United Airlines Logo
14:35 - 17:20
IDA
-
MAN
43h 45m2 stops
£954United Airlines
Wed, 29 Apr - Sun, 3 May
Virgin Atlantic Logo
16:10 - 22:19
LHR
-
IDA
61h 09m2 stops
Virgin Atlantic Logo
13:15 - 06:20
IDA
-
LHR
34h 05m2 stops
£1,578Virgin Atlantic
Mon, 5 Jan - Sat, 10 Jan
United Airlines Logo
12:50 - 09:56
LHR
-
IDA
28h 06m2 stops
United Airlines Logo
14:40 - 09:40
IDA
-
LHR
12h 00m1 stop
£1,779United Airlines
Mon, 5 Jan - Sat, 10 Jan
United Airlines Logo
11:35 - 22:59
LHR
-
IDA
18h 24m1 stop
United Airlines Logo
10:51 - 09:40
IDA
-
LHR
15h 49m1 stop
£4,542United Airlines
Mon, 5 Jan - Sat, 10 Jan

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 12 December 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

Sat 24/1

14:25-22:36

1 stop15h 11m

Idaho Falls Fanning Field

Sat 31/1

14:07-12:15

1 stop15h 08m

£783

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 24/1

06:20-22:57

2 stops23h 37m

Idaho Falls Fanning Field

Sat 31/1

13:15-10:00

1 stop13h 45m

£784

LondonIdaho Falls

LGW - IDA

LGWIDA

London Gatwick

Sat 24/1

11:55-22:59

2 stops18h 04m

Idaho Falls Fanning Field

Sat 31/1

09:00-10:55

2 stops18h 55m

£788

ManchesterIdaho Falls

MAN - IDA

MANIDA

Manchester

Wed 29/4

07:00-09:28

2 stops33h 28m

Idaho Falls Fanning Field

Sun 3/5

14:35-17:20

2 stops43h 45m

£954

ManchesterIdaho Falls

MAN - IDA

MANIDA

Manchester

Wed 29/4

07:00-09:28

2 stops33h 28m

Idaho Falls Fanning Field

Sun 3/5

14:35-17:20

2 stops43h 45m

£954

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 5/1

16:10-22:19

2 stops61h 09m

Idaho Falls Fanning Field

Sat 10/1

13:15-06:20

2 stops34h 05m

£1,578

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 5/1

12:50-09:56

2 stops28h 06m

Idaho Falls Fanning Field

Sat 10/1

14:40-09:40

1 stop12h 00m

£1,779

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 5/1

11:35-22:59

1 stop18h 24m

Idaho Falls Fanning Field

Sat 10/1

10:51-09:40

1 stop15h 49m

£4,542

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Fri 5/6

08:20-21:05

1 stop19h 45m

£613

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Fri 5/6

08:20-21:05

1 stop19h 45m

£614

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 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 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 £691. 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 £954.

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 £777. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £892 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

Cheap Idaho Falls flight deals and tips

Summary info about Idaho Falls flight prices, duration and airlines

Best One-Way Price

£613

Best Round-Trip Price

£783

Fastest flight time

19h 45m
The best one-way flight price to Idaho Falls from United Kingdom in the last 72 hours is £613 (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 £783 (London Heathrow to Idaho Falls Fanning Field).
The fastest flight to Idaho Falls from United Kingdom takes 19h 45m (London Heathrow to Idaho Falls Fanning Field).

Frequently asked questions about flying to Idaho Falls

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 £637, are often lower during this time because this is during the off-season. The month of March is another great option to travel to Idaho Falls, with average flight prices from United Kingdom averaging around £647.

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.

Is there a cheaper alternative to flying into Idaho Falls?

The cheapest airport near Idaho Falls is typically West Yellowstone Airport, with an average price of £301/person. These prices vary based on where travellers are coming from. It is suggested that travellers looking to save money try momondo’s Airport-to-Airport Pricing Tool.

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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1 adult
Sun 11/1
Sun 18/1

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