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Cheap flights from the United Kingdom to Idaho Falls from £332

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Idaho Falls departing on 24/1. 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

Recent return flight deals from the United Kingdom to Idaho Falls

Enter your travel dates to find the best prices.
United Airlines Logo
07:30 - 15:40
LHR
-
IDA
39h 10m2 stops
United Airlines Logo
06:35 - 09:40
IDA
-
LHR
20h 05m1 stop
£725United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
07:30 - 15:40
LHR
-
IDA
39h 10m2 stops
United Airlines Logo
10:45 - 11:15
IDA
-
LHR
17h 30m2 stops
£742United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
09:30 - 15:40
LHR
-
IDA
37h 10m2 stops
United Airlines Logo
17:33 - 09:40
IDA
-
LHR
33h 07m1 stop
£743United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
11:35 - 20:58
LHR
-
IDA
16h 23m1 stop
United Airlines Logo
10:45 - 09:40
IDA
-
LHR
15h 55m1 stop
£748United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
11:35 - 20:58
LHR
-
IDA
16h 23m1 stop
United Airlines Logo
14:40 - 09:40
IDA
-
LHR
12h 00m1 stop
£766United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
09:10 - 20:58
LHR
-
IDA
18h 48m2 stops
United Airlines Logo
14:40 - 14:45
IDA
-
LHR
17h 05m2 stops
£771United Airlines
Wed, 18 Feb - Sun, 22 Feb
United Airlines Logo
06:00 - 09:56
MAN
-
IDA
34h 56m2 stops
United Airlines Logo
14:40 - 17:00
IDA
-
MAN
43h 20m2 stops
£894United Airlines
Wed, 14 Jan - Sun, 18 Jan
United Airlines Logo
06:00 - 09:56
MAN
-
IDA
34h 56m2 stops
United Airlines Logo
14:40 - 17:00
IDA
-
MAN
43h 20m2 stops
£919United Airlines
Wed, 14 Jan - Sun, 18 Jan
Multiple Airlines Logo
13:05 - 22:40
LHR
-
IDA
16h 35m2 stops
Multiple Airlines Logo
06:00 - 11:55
IDA
-
LHR
22h 55m2 stops
£1,136Multiple Airlines
Wed, 29 Apr - Thu, 30 Apr
Delta Logo
10:55 - 18:17
LHR
-
IDA
14h 22m1 stop
Delta Logo
18:57 - 20:10
IDA
-
LHR
18h 13m2 stops
£2,708Delta
Wed, 29 Apr - Thu, 30 Apr

United Airlines flights from United Kingdom to Idaho Falls

Our best United Airlines deals on United Kingdom to Idaho Falls flight tickets
United Airlines
18 Feb
LHR07:30London Heathrow
39h 10m
2 stops
IDA15:40Idaho Falls Fanning Field
22 Feb
IDA06:35Idaho Falls Fanning Field
20h 05m
1 stop
LHR09:40London Heathrow
£725
Find similar
United Airlines
18 Feb
LHR07:30London Heathrow
39h 10m
2 stops
IDA15:40Idaho Falls Fanning Field
22 Feb
IDA10:45Idaho Falls Fanning Field
17h 30m
2 stops
LHR11:15London Heathrow
£742
Find similar
United Airlines
18 Feb
LHR09:30London Heathrow
37h 10m
2 stops
IDA15:40Idaho Falls Fanning Field
22 Feb
IDA17:33Idaho Falls Fanning Field
33h 07m
1 stop
LHR09:40London Heathrow
£743
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from United Kingdom 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 28 December 2025.
Use the filters below to find and compare flights from the United Kingdom to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

07:30-15:40

2 stops39h 10m

Idaho Falls Fanning Field

Sun 22/2

06:35-09:40

1 stop20h 05m

£725

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

07:30-15:40

2 stops39h 10m

Idaho Falls Fanning Field

Sun 22/2

10:45-11:15

2 stops17h 30m

£742

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

09:30-15:40

2 stops37h 10m

Idaho Falls Fanning Field

Sun 22/2

17:33-09:40

1 stop33h 07m

£743

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

11:35-20:58

1 stop16h 23m

Idaho Falls Fanning Field

Sun 22/2

10:45-09:40

1 stop15h 55m

£748

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

11:35-20:58

1 stop16h 23m

Idaho Falls Fanning Field

Sun 22/2

14:40-09:40

1 stop12h 00m

£766

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 18/2

09:10-20:58

2 stops18h 48m

Idaho Falls Fanning Field

Sun 22/2

14:40-14:45

2 stops17h 05m

£771

ManchesterIdaho Falls

MAN - IDA

MANIDA

Manchester

Wed 14/1

06:00-09:56

2 stops34h 56m

Idaho Falls Fanning Field

Sun 18/1

14:40-17:00

2 stops43h 20m

£894

ManchesterIdaho Falls

MAN - IDA

MANIDA

Manchester

Wed 14/1

06:00-09:56

2 stops34h 56m

Idaho Falls Fanning Field

Sun 18/1

14:40-17:00

2 stops43h 20m

£919

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 29/4

13:05-22:40

2 stops16h 35m

Idaho Falls Fanning Field

Thu 30/4

06:00-11:55

2 stops22h 55m

£1,136

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 29/4

10:55-18:17

1 stop14h 22m

Idaho Falls Fanning Field

Thu 30/4

18:57-20:10

2 stops18h 13m

£2,708

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Idaho Falls from

How to get the cheapest flight ticket from United Kingdom 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 United Kingdom. The lowest ticket price found for a Tuesday departure recently was £685. 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 £945.

Cheap United Kingdom to Idaho Falls flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United Kingdom to Idaho Falls

Fastest flight time

18h 32m

Direct flights

None
The fastest flight from United Kingdom to Idaho Falls takes 18h 32m
There are no direct flights from United Kingdom to Idaho Falls. There are no popular flight routes from United Kingdom to Idaho Falls.
Search flight deals

  • When did momondo last update prices for flights from United Kingdom to Idaho Falls Fanning Field Airport?

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

  • How many operators does momondo search for flights from United Kingdom to Idaho Falls Fanning Field Airport?

  • How old do you have to be to fly from United Kingdom 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 United Kingdom to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The necessary travel and health documents for your Idaho Falls Fanning Field Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from United Kingdom to Idaho Falls

Compare and see reviews for airlines that fly from United Kingdom to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom £645Free CancellationRating
7.5
677 reviews
Search Virgin Atlantic flights
United AirlinesPriceFrom £753Free CancellationRating
7.4
9,113 reviews
Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from United Kingdom to Idaho Falls. momondo saves you time and could save you money on your trip.

Can I find flights from United Kingdom to Idaho Falls with flexible booking policies on momondo?

All flight searches from United Kingdom to Idaho Falls on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from United Kingdom to Idaho Falls?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from United Kingdom to Idaho Falls.

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

Yes momondo offers price alerts on flights to Idaho Falls from United Kingdom. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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