Find flights
Travel Guide

£441+ Cheap flights to Idaho Falls

— IDA
30 Oct — 6 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

Tue 10/1114:45 -
1 stop15h 09m
Tue 17/1106:04 -
1 stop23h 16m
Deal found 26/9£731
Mon 26/1014:45 -
1 stop14h 14m
Mon 2/1106:04 -
1 stop23h 16m
Deal found 26/9£850
Sat 24/1017:00 -
1 stop29h 20m
Sat 31/1006:09 -
1 stop24h 11m
Deal found 26/9£877
Tue 10/1107:30 -
2 stops20h 39m
Tue 17/1110:35 -
2 stops17h 15m
Deal found 26/9£934
Sat 24/1011:40 -
2 stops17h 30m
Sat 31/1013:05 -
2 stops15h 35m
Deal found 26/9£979
Mon 26/1007:30 -
2 stops19h 39m
Mon 2/1114:35 -
2 stops23h 00m
Deal found 26/9£994
Sat 24/1012:55 -
1 stop15h 47m
Sat 31/1013:50 -
1 stop12h 45m
Deal found 26/9£1,012
Wed 30/917:00 -
1 stop29h 20m
Mon 2/1106:04 -
1 stop23h 16m
Deal found 26/9£1,198
Wed 30/908:00 -
2 stops16h 16m
Mon 2/1116:30 -
2 stops21h 05m
Deal found 26/9£1,318
Sat 24/1015:40 -
2 stops54h 40m
Sat 31/1006:09 -
2 stops22h 46m
Deal found 26/9£2,145

Find flight deals to Idaho Falls

Return from

£731

One-way from

£441
Alaska Airlines
  • Alaska Airlines
  • 10/11-17/11
  • 2 total stops
  • 38h 25m total
  • London to Idaho Falls
Search Deals
19/11-31/12
  • 19/11-31/12
  • 3 total stops
  • 31h 44m total
  • London to Idaho Falls
Search Deals

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

LondonIdaho Falls

LHR London Heathrow - IDA Idaho Falls Fanning Field

LHRIDA

London Heathrow

Thu 19/11

14:50-15:34

3 stops31h 44m

Idaho Falls Fanning Field

Wed 31/12

00:00-08:00

Nonstop0h 00m

£441

LondonIdaho Falls

LHR London Heathrow - IDA Idaho Falls Fanning Field

LHRIDA

London Heathrow

Fri 8/1

08:45-15:21

3 stops37h 36m

Idaho Falls Fanning Field

Wed 31/12

00:00-08:00

Nonstop0h 00m

£536

LondonIdaho Falls

LGW London Gatwick - IDA Idaho Falls Fanning Field

LGWIDA

London Gatwick

Fri 8/1

12:35-15:21

2 stops33h 46m

Idaho Falls Fanning Field

Wed 31/12

00:00-08:00

Nonstop0h 00m

£541
Fastest return journey

LondonIdaho Falls

LHR London Heathrow - IDA Idaho Falls Fanning Field

LHRIDA

London Heathrow

Thu 19/11

14:45-15:09

1 stop31h 24m

Idaho Falls Fanning Field

Wed 31/12

00:00-08:00

Nonstop0h 00m

£558

LondonIdaho Falls

LHR London Heathrow - IDA Idaho Falls Fanning Field

LHRIDA

London Heathrow

Tue 10/11

14:45-22:54

1 stop15h 09m

Idaho Falls Fanning Field

Tue 17/11

06:04-12:20

1 stop23h 16m

£731

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

£808

LondonIdaho Falls

LHR London Heathrow - IDA Idaho Falls Fanning Field

LHRIDA

London Heathrow

Fri 15/1

14:45-22:53

1 stop15h 08m

Idaho Falls Fanning Field

Thu 21/1

09:08-12:20

1 stop20h 12m

£817

LondonIdaho Falls

LHR London Heathrow - IDA Idaho Falls Fanning Field

LHRIDA

London Heathrow

Sat 24/10

19:30-15:20

2 stops50h 50m

Idaho Falls Fanning Field

Wed 31/12

00:00-08:00

Nonstop0h 00m

£828

LondonIdaho Falls

LHR London Heathrow - IDA Idaho Falls Fanning Field

LHRIDA

London Heathrow

Fri 15/1

12:15-22:53

2 stops17h 38m

Idaho Falls Fanning Field

Thu 21/1

09:08-10:50

2 stops18h 42m

£840

LondonIdaho Falls

LHR London Heathrow - IDA Idaho Falls Fanning Field

LHRIDA

London Heathrow

Wed 13/1

10:45-18:14

1 stop14h 29m

Idaho Falls Fanning Field

Mon 18/1

18:45-20:10

2 stops18h 25m

£849

Flights are sorted by cheapest return flights first.

Deals found on 26/9

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 25 hours 35 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 £1,053

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, London offers the quickest one-way flight (12 hours 51 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

Browse thousands of different options on Cheapflights for your next trip

Search flights to Idaho Falls by cabin class

First Class flights to Idaho Falls
Business Class flights to Idaho Falls
Prem Economy Class flights to Idaho Falls
Economy Class flights to Idaho Falls

Fly with Cheapflights

How does Cheapflights help users find flights to Idaho Falls?

Deals for Idaho Falls flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets to Idaho Falls?

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.

Can Cheapflights find flights to Idaho Falls with no change fees?

Yes! Cheapflights helps users easily find flights to Idaho Falls with no change fees.

Can Cheapflights notify me if prices for flights to Idaho Falls become cheaper?

Yes, and it’s super simple to set up Price Alerts. Click the bell icon next to the flight deals above and provide your email address. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.