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£387+ Cheap flights to Idaho Falls

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/6. Fares are subject to change and may not be available on all flights or dates of travel.
— IDA
7 Apr — 14 Apr1
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
Explore the most affordable flight options available to Idaho Falls. Find the lowest fares based on data from user searches, with prices last updated on 8 March 2026.

Tue 1/908:20
LHR
-
IDA
2 stops20h 54m
KLM
Fri 25/918:50
IDA
-
LHR
1 stop32h 10m
KLM
Deal found 4/3£775
Tue 1/912:55
LHR
-
IDA
1 stop15h 24m
Multiple Airlines
Fri 25/916:03
IDA
-
LHR
1 stop14h 42m
Multiple Airlines
Deal found 5/3£790
Tue 1/906:15
LHR
-
IDA
2 stops18h 59m
Delta
Fri 25/918:50
IDA
-
LHR
2 stops18h 20m
Delta
Deal found 4/3£797
Tue 1/916:25
LHR
-
IDA
1 stop26h 51m
American Airlines
Fri 25/913:46
IDA
-
LHR
1 stop17h 39m
American Airlines
Deal found 7/3£813
Tue 1/913:00
LGW
-
IDA
2 stops16h 39m
Multiple Airlines
Fri 25/916:03
IDA
-
LGW
2 stops15h 37m
Multiple Airlines
Deal found 4/3£1,411

Find flight deals to Idaho Falls

Find the latest flights to Idaho Falls in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 8 March 2026.

Return from

£770

One-way from

£387
Delta
  • Delta
  • 1/9-25/9
  • 4 total stops
  • 37h 19m total
  • London to Idaho Falls
Search Deals
20/6
  • 20/6
  • 3 total stops
  • 49h 38m total
  • London to Idaho Falls
Search Deals

Cheapflights Fare Finder

 
Locate flights to Idaho Falls that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 8 March 2026.
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 - IDA

LHRIDA

London Heathrow

Tue 1/9

09:15-21:19

2 stops19h 04m

Idaho Falls Fanning Field

Fri 25/9

16:03-13:45

1 stop14h 42m

£793

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 1/9

06:15-18:14

2 stops18h 59m

Idaho Falls Fanning Field

Fri 25/9

18:50-20:10

2 stops18h 20m

£797

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 1/9

20:55-18:14

2 stops28h 19m

Idaho Falls Fanning Field

Fri 25/9

18:50-10:00

1 stop32h 10m

£809

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Tue 1/9

14:45-12:10

1 stop28h 25m

Idaho Falls Fanning Field

Fri 25/9

13:44-10:50

1 stop14h 06m

£819

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 13/7

20:10-13:13

2 stops24h 03m

Idaho Falls Fanning Field

Wed 22/7

07:00-09:00

1 stop19h 00m

£878

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Mon 13/7

11:40-10:39

2 stops29h 59m

Idaho Falls Fanning Field

Sun 19/7

18:50-10:00

1 stop32h 10m

£919

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Fri 5/6

18:35-14:34

2 stops26h 59m

Idaho Falls Fanning Field

Mon 15/6

11:20-10:20

2 stops16h 00m

£927
Fastest return journey

LondonIdaho Falls

LHR - IDA

LHRIDA

London Heathrow

Fri 5/6

11:10-22:15

2 stops18h 05m

Idaho Falls Fanning Field

Mon 15/6

14:08-10:55

1 stop13h 47m

£936

LondonIdaho Falls

LGW - IDA

LGWIDA

London Gatwick

Tue 1/9

13:00-22:39

2 stops16h 39m

Idaho Falls Fanning Field

Fri 25/9

16:03-14:40

2 stops15h 37m

£1,411
Cheapest one-way

LondonIdaho Falls

LGW - IDA

LGWIDA

London Gatwick

Sat 20/6

21:30-16:08

3 stops49h 38m

£387

Flights are sorted by cheapest return flights first.

Deals found on 6/3

Showing 1-10 of 14 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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 16 hours 29 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 £759
Virgin Atlantic
Virgin Atlantic
From £617

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

Plan your trip to Idaho Falls by taking into account the average rainfall totals 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

Plan your trip to Idaho Falls by taking into account the average temperature totals 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).

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho Falls. Reviews last updated 8 March 2026.
Check out reviews from past customers who have flown Virgin Atlantic and United Airlines to the United States to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Overall

7.5

Boarding

7.7

Entertainment

7.6

Food

6.9

Crew

8.2

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
680 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Overall

7.5

Boarding

7.7

Entertainment

7.6

Food

6.9

Crew

8.2

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
United Airlines
7.4
Good
9,408 reviews
Virgin Atlantic
7.5
Good
680 reviews
Check prices

Comfort

7.3

Overall

7.5

Boarding

7.7

Entertainment

7.6

Food

6.9

Crew

8.2

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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 (16 hours 20 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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Yes! Cheapflights helps users easily find flights to Idaho Falls with no change fees.

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