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United Kingdom
GBP

£723+ Cheap flights to Idaho Falls

— IDA
6 Nov — 13 Nov1
1 adult
1 adult, Economy, 0 bags

Flights to Idaho Falls in 2026

Enter your travel dates to find the best prices.

Cheapest flights to Idaho Falls

Sun 15/1114:45 -
1 stop15h 09m
Wed 2/1213:54 -
1 stop15h 26m
Deal found 6/10£723
Tue 17/1114:45 -
1 stop31h 33m
Tue 1/1206:00 -
1 stop23h 20m
Deal found 6/10£823
Mon 16/1114:45 -
1 stop31h 33m
Wed 2/1215:44 -
2 stops37h 36m
Deal found 6/10£856
Tue 17/1106:20 -
2 stops18h 57m
Tue 1/1213:00 -
2 stops20h 15m
Deal found 6/10£863
Thu 19/1114:45 -
1 stop15h 09m
Tue 1/1206:00 -
1 stop23h 20m
Deal found 6/10£883
Mon 16/1114:45 -
1 stop31h 33m
Thu 3/1213:54 -
1 stop15h 26m
Deal found 6/10£897
Mon 16/1114:45 -
1 stop31h 33m
Sun 29/1106:02 -
1 stop23h 18m
Deal found 6/10£921
Sun 15/1114:45 -
1 stop15h 09m
Mon 30/1115:46 -
2 stops37h 34m
Deal found 6/10£925
Wed 18/1114:45 -
2 stops29h 31m
Tue 1/1206:00 -
1 stop23h 20m
Deal found 6/10£935
Sun 15/1114:45 -
1 stop31h 33m
Sun 29/1106:02 -
1 stop23h 18m
Deal found 6/10£949
Mon 16/1110:00 -
2 stops39h 17m
Tue 1/1213:00 -
2 stops19h 45m
Deal found 6/10£982
Wed 18/1116:45 -
2 stops32h 32m
Tue 1/1213:00 -
2 stops19h 45m
Deal found 6/10£1,029

Find flight deals to Idaho Falls

Return from

£709
Alaska Airlines
  • Alaska Airlines
  • 10/2-14/2
  • 2 total stops
  • 38h 13m total
  • London to Idaho Falls
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights to Idaho Falls that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonIdaho Falls

LHR London Heathrow - IDA Idaho Falls Fanning Field

LHRIDA

London Heathrow

Thu 19/11

14:45-22:54

1 stop15h 09m

Idaho Falls Fanning Field

Wed 2/12

13:54-12:20

1 stop15h 26m

£723

LondonIdaho Falls

LHR London Heathrow - IDA Idaho Falls Fanning Field

LHRIDA

London Heathrow

Thu 28/1

14:45-15:21

1 stop31h 36m

Idaho Falls Fanning Field

Mon 1/2

13:56-12:20

1 stop15h 24m

£727

LondonIdaho Falls

LGW London Gatwick - IDA Idaho Falls Fanning Field

LGWIDA

London Gatwick

Wed 10/2

11:55-22:53

2 stops17h 58m

Idaho Falls Fanning Field

Sun 14/2

06:15-10:55

2 stops21h 40m

£793

LondonIdaho Falls

LHR London Heathrow - IDA Idaho Falls Fanning Field

LHRIDA

London Heathrow

Thu 19/11

14:45-22:54

1 stop15h 09m

Idaho Falls Fanning Field

Tue 1/12

06:00-12:20

1 stop23h 20m

£883

LondonIdaho Falls

LHR London Heathrow - IDA Idaho Falls Fanning Field

LHRIDA

London Heathrow

Mon 16/11

14:45-15:18

1 stop31h 33m

Idaho Falls Fanning Field

Mon 30/11

15:46-12:20

2 stops37h 34m

£897

LondonIdaho Falls

LHR London Heathrow - IDA Idaho Falls Fanning Field

LHRIDA

London Heathrow

Sun 15/11

14:45-13:16

2 stops29h 31m

Idaho Falls Fanning Field

Wed 2/12

15:44-12:20

2 stops37h 36m

£918

LondonIdaho Falls

LGW London Gatwick - IDA Idaho Falls Fanning Field

LGWIDA

London Gatwick

Mon 16/11

10:00-18:17

2 stops39h 17m

Idaho Falls Fanning Field

Tue 1/12

13:00-15:45

2 stops19h 45m

£982

LondonIdaho Falls

LGW London Gatwick - IDA Idaho Falls Fanning Field

LGWIDA

London Gatwick

Wed 18/11

16:45-18:17

2 stops32h 32m

Idaho Falls Fanning Field

Tue 1/12

13:00-15:45

2 stops19h 45m

£1,029

LondonIdaho Falls

LGW London Gatwick - IDA Idaho Falls Fanning Field

LGWIDA

London Gatwick

Tue 17/11

10:00-21:59

2 stops42h 59m

Idaho Falls Fanning Field

Tue 1/12

13:00-15:45

2 stops19h 45m

£1,089

Flights are sorted by cheapest return flights first.

Deals found on 6/10

Sorted by cheapest first

Best time to book a flight to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight to Idaho Falls

How long is the flight to Idaho Falls?

On average, a flight from London to Idaho Falls takes 31 hours 44 minutes. Flights to Idaho Falls from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

What are the most popular airlines that fly to Idaho Falls?

The most popular airline flying from London to Idaho Falls is United Airlines.

United Airlines
United Airlines
From £1,051

What are the cheapest airlines that fly to Idaho Falls?

The cheapest airline flying from London to Idaho Falls is United Airlines.

Rainfall in Idaho Falls by month

In terms of precipitation, rainfall in Idaho Falls ranges from 15.0 - 51.0 inches per month. May is typically the wettest month, when rainfall can reach 51.0 mm. July is typically the driest time to visit Idaho Falls when rainfall is around 15.0 mm.

Temperature in Idaho Falls by month

If weather is an important factor for your trip to Idaho Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

FAQs about flying to Idaho Falls

Getting around Idaho Falls

Public buses, hire cars, and taxis all operate in Idaho Falls, so getting around is easy. There are also several specialised tour buses which will take you on trips to the mountains, the plains, or the Falls. Public buses tend to be run by various companies, so make sure you enquire which companies operate on the routes that you want to take. There are also air links to other parts of the US, such as Utah, with flights leaving several times a day, should you wish to explore even further afield, too.

  • When is the best time to fly to Idaho Falls?

    Winters in Idaho tend to be very snowy and cold, so unless you are visiting this region to ski or snowboard, it might be best to travel in another season. If you want to avoid the more expensive travel costs that are associated with the school summer holidays between June and August, whilst still being able to enjoy some temperate weather that lets you get out and about in nature, then the autumn months of September and October are a good time to visit Idaho Falls. Idaho Falls is also home to several festivals, from an annual Shakespeare Festival to a yearly June Picnic. So why not have a look to see what is going on and time your visit to coincide with one of these public events.

  • What airport do you fly into for flights to Idaho Falls?

    Booking a flight to Idaho Falls Fanning Field (IDA) is your only option if you intend on flying to Idaho Falls. It is only a 3.8 mi journey from Fanning Field to Idaho Falls’s city center.

  • Can I find cheaper flights to Idaho Falls if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Idaho Falls on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Idaho Falls?

    Based on reviews from Cheapflights users, United Airlines is rated the highest out of the airlines that fly to Idaho Falls.

  • Where does the fastest flight to Idaho Falls depart from?

    For those looking to save time traveling to Idaho Falls, Edinburgh Turnhouse offers the quickest one-way flight (18 hours 44 minutes).

  • Does Idaho Falls Fanning Field have car hire?

    Yes. Those touching down at Idaho Falls Fanning Field can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Idaho Falls Fanning Field?

    Yes. Idaho Falls Fanning Field has hotels nearby for those requiring accommodations. New Near Downtown+river+airport is the closest property to Idaho Falls Fanning Field (0.0 mi away from Idaho Falls Fanning Field).

See more FAQs

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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights to Idaho Falls.

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