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Cheap flights from the United Kingdom to Idaho Falls from £360

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 2/12. 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

Multiple Airlines Logo
10:05 - 21:49LHR-IDA
17h 44m1 stop
Multiple Airlines Logo
13:58 - 11:40IDA-LHR
14h 42m1 stop
£592Multiple Airlines
Find Deal
Thu, 30 Oct - Thu, 6 Nov
American Airlines Logo
14:25 - 22:34LHR-IDA
15h 09m1 stop
American Airlines Logo
07:10 - 09:30IDA-LHR
19h 20m2 stops
£593American Airlines
Find Deal
Sat, 22 Nov - Wed, 26 Nov
Delta Logo
06:20 - 18:17LHR-IDA
18h 57m2 stops
Delta Logo
06:00 - 10:00IDA-LHR
21h 00m1 stop
£599Delta
Find Deal
Sat, 22 Nov - Wed, 26 Nov
Delta Logo
06:20 - 22:33LHR-IDA
23h 13m2 stops
Delta Logo
06:00 - 10:00IDA-LHR
21h 00m1 stop
£601Delta
Find Deal
Sat, 22 Nov - Wed, 26 Nov
Delta Logo
10:45 - 18:17LHR-IDA
14h 32m1 stop
Delta Logo
06:00 - 10:00IDA-LHR
21h 00m1 stop
£609Delta
Find Deal
Sat, 22 Nov - Wed, 26 Nov
Delta Logo
10:45 - 18:17LHR-IDA
14h 32m1 stop
Delta Logo
06:00 - 10:00IDA-LHR
21h 00m1 stop
£609Delta
Find Deal
Sat, 22 Nov - Wed, 26 Nov
British Airways Logo
11:15 - 12:41LHR-IDA
31h 26m2 stops
British Airways Logo
07:10 - 10:25IDA-LHR
20h 15m2 stops
£639British Airways
Find Deal
Thu, 30 Oct - Thu, 6 Nov
American Airlines Logo
10:30 - 22:36GLA-IDA
19h 06m2 stops
American Airlines Logo
13:58 - 14:15IDA-GLA
17h 17m2 stops
£653American Airlines
Find Deal
Sat, 6 Dec - Wed, 10 Dec
United Airlines Logo
11:10 - 22:52LHR-IDA
18h 42m2 stops
United Airlines Logo
05:00 - 05:55IDA-LHR
17h 55m2 stops
£661United Airlines
Find Deal
Sat, 22 Nov - Wed, 26 Nov
United Airlines Logo
07:30 - 21:03LHR-IDA
19h 33m2 stops
United Airlines Logo
14:45 - 09:40IDA-LHR
11h 55m1 stop
£663United Airlines
Find Deal
Wed, 29 Oct - Wed, 5 Nov

Delta flights from United Kingdom to Idaho Falls

Our best Delta deals on United Kingdom to Idaho Falls flight tickets
Delta
22 Nov
LHR06:20London Heathrow
18h 57m
2 stops
IDA18:17Idaho Falls Fanning Field
26 Nov
IDA06:00Idaho Falls Fanning Field
21h 00m
1 stop
LHR10:00London Heathrow
£599
Find similar
Delta
22 Nov
LHR06:20London Heathrow
23h 13m
2 stops
IDA22:33Idaho Falls Fanning Field
26 Nov
IDA06:00Idaho Falls Fanning Field
21h 00m
1 stop
LHR10:00London Heathrow
£601
Find similar
Delta
22 Nov
LHR10:45London Heathrow
14h 32m
1 stop
IDA18:17Idaho Falls Fanning Field
26 Nov
IDA06:00Idaho Falls Fanning Field
21h 00m
1 stop
LHR10:00London Heathrow
£609
Find similar

American Airlines flights from United Kingdom to Idaho Falls

Our best American Airlines deals on United Kingdom to Idaho Falls flight tickets
American Airlines
22 Nov
LHR14:25London Heathrow
15h 09m
1 stop
IDA22:34Idaho Falls Fanning Field
26 Nov
IDA07:10Idaho Falls Fanning Field
19h 20m
2 stops
LHR09:30London Heathrow
£593
Find similar
American Airlines
6 Dec
GLA10:30Glasgow Intl
19h 06m
2 stops
IDA22:36Idaho Falls Fanning Field
10 Dec
IDA13:58Idaho Falls Fanning Field
17h 17m
2 stops
GLA14:15Glasgow Intl
£653
Find similar
American Airlines
6 Dec
GLA11:40Glasgow Intl
17h 56m
2 stops
IDA22:36Idaho Falls Fanning Field
10 Dec
IDA13:58Idaho Falls Fanning Field
18h 52m
2 stops
GLA15:50Glasgow Intl
£655
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 17 September 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

Thu 30/10

10:05-21:49

1 stop17h 44m

Idaho Falls Fanning Field

Thu 6/11

13:58-11:40

1 stop14h 42m

£592

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 22/11

14:25-22:34

1 stop15h 09m

Idaho Falls Fanning Field

Wed 26/11

07:10-09:30

2 stops19h 20m

£593

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 22/11

06:20-18:17

2 stops18h 57m

Idaho Falls Fanning Field

Wed 26/11

06:00-10:00

1 stop21h 00m

£599

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 22/11

06:20-22:33

2 stops23h 13m

Idaho Falls Fanning Field

Wed 26/11

06:00-10:00

1 stop21h 00m

£601

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 22/11

10:45-18:17

1 stop14h 32m

Idaho Falls Fanning Field

Wed 26/11

06:00-10:00

1 stop21h 00m

£609

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 22/11

10:45-18:17

1 stop14h 32m

Idaho Falls Fanning Field

Wed 26/11

06:00-10:00

1 stop21h 00m

£609

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Thu 30/10

11:15-12:41

2 stops31h 26m

Idaho Falls Fanning Field

Thu 6/11

07:10-10:25

2 stops20h 15m

£639

GlasgowIdaho Falls

GLA - IDA

GLAIDA

Glasgow Intl

Sat 6/12

10:30-22:36

2 stops19h 06m

Idaho Falls Fanning Field

Wed 10/12

13:58-14:15

2 stops17h 17m

£653

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Sat 22/11

11:10-22:52

2 stops18h 42m

Idaho Falls Fanning Field

Wed 26/11

05:00-05:55

2 stops17h 55m

£661

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Wed 29/10

07:30-21:03

2 stops19h 33m

Idaho Falls Fanning Field

Wed 5/11

14:45-09:40

1 stop11h 55m

£663

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 £678. 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 £936.

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 £763. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £875 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.

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

Direct flights

None
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 £639Free CancellationRating
7.4
664 reviews
Search Virgin Atlantic flights
United AirlinesPriceFrom £746Free CancellationRating
7.4
8,924 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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