CA $271 Cheap Flights from Las Vegas (LAS) to Idaho Falls (IDA)

View CA $271 flight on Sat, Aug. 16, 2025Opens in a new window

Popular airlines from Harry Reid Intl. Airport (LAS) to Idaho Falls Regional Airport (IDA)

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Cheap flights from Las Vegas (LAS) to Idaho Falls (IDA)

Prices were available within the past 7 days and start at CA $271 for one-way flights and CA $784 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Aug. 16 - Sun, Aug. 24
LAS
Las Vegas
IDA
Idaho Falls
CA $784 Roundtrip, found 4 days ago
CA $784
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Aug. 16 from Las Vegas to Idaho Falls, returning Sun, Aug. 24, priced at CA $784 found 4 days ago
Alaska Airlines
Sat, Aug. 16 - Sun, Aug. 24
LAS
Las Vegas
IDA
Idaho Falls
CA $795 Roundtrip, found 4 days ago
CA $795
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Aug. 16 from Las Vegas to Idaho Falls, returning Sun, Aug. 24, priced at CA $795 found 4 days ago
Alaska Airlines
Sat, Aug. 16 - Sun, Aug. 24
LAS
Las Vegas
IDA
Idaho Falls
CA $849 Roundtrip, found 4 days ago
CA $849
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Aug. 16 from Las Vegas to Idaho Falls, returning Sun, Aug. 24, priced at CA $849 found 4 days ago
Alaska Airlines
Sat, Aug. 16 - Sun, Aug. 24
LAS
Las Vegas
IDA
Idaho Falls
CA $860 Roundtrip, found 4 days ago
CA $860
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Aug. 16 from Las Vegas to Idaho Falls, returning Sun, Aug. 24, priced at CA $860 found 4 days ago

Find the cheapest month to fly from Las Vegas (LAS) to Idaho Falls (IDA)

January is typically the cheapest month to fly

From CA $301 - CA $878 per traveller.

Graph displaying average flight prices per month

Flight from Las Vegas to Idaho Falls (LAS - IDA) route information
Origin airport
Harry Reid Intl.
Destination airport
Idaho Falls Regional
Roundtrip price
CA $784
Distance
861 km
Average flight time
1 hour 48 mins

Las Vegas to Idaho Falls Flights

The easy way to book your flights from Las Vegas to Idaho Falls 

With Expedia, it’s simple to find and book flights to Idaho Falls from Las Vegas whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Idaho Falls Regional, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Las Vegas to Idaho Falls today, tomorrow, or this week.  

 

Save dollars with cheap flights from Harry Reid Intl., LAS to Idaho Falls Regional, IDA 

Sort your search results by price to find great deals on your flight from Las Vegas to Idaho Falls—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Idaho Falls from Las Vegas currently is just CA $784 rising to CA $911.  

Here are more money-saving tips: 

  • Fly in August when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Idaho Falls  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Idaho Falls from Las Vegas 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Idaho Falls with Expedia today.

Frequently asked questions

How much is a flight from Harry Reid Airport (formerly McCarran Airport) to Idaho Falls Regional Airport (IDA)?
Based on fares quoted within the last 7 days on Expedia for flights departing within the next year, round-trip flights from LAS to IDA start from CA $784. Make your booking ASAP to score the best price for your next big adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from LAS to Idaho Falls Regional Airport?
Each airline has its own set of terms and conditions. If you decide to cancel your escape, head to our Customer Service Portal.
How do I find cheap flights from LAS to Idaho Falls Regional Airport that have flexible change policies?
Flights from Harry Reid Airport (formerly McCarran Airport) to IDA offering flexible change policies are available with many carriers. Simply use our "No change fees" filter when searching. You'll only need to pay the difference in ticket price, without any extra fees to worry about.
How many hours is the flight from LAS to Idaho Falls Regional Airport (IDA)?
There are lots of ways to make the 4 hours and 5 minutes between Harry Reid Airport (formerly McCarran Airport) and Idaho Falls Regional Airport go by faster. If you want to be productive, sort through your photos or clear out all those unwanted emails. A snooze also helps pass the time!
How far is the flight from Harry Reid Airport (formerly McCarran Airport) to Idaho Falls Regional Airport (IDA)?
The flight distance from LAS (LAS) to Idaho Falls Regional Airport (IDA) (IDA) is just 870 kilometres. You'll be walking down the air bridge and collecting your baggage from the carousel in no time at all.
Which airlines fly direct from LAS to IDA?
There are no direct flights, so you'll need to make at least one stop between LAS and IDA. Take advantage of the layover time to stretch your legs and take a break.
Are LAS to Idaho Falls Regional Airport (IDA) flight tickets cheaper when they're purchased at the last minute?
Booking your trip from LAS to Idaho Falls Regional Airport last minute could save you some serious cash. However, it could end up costing you a whole lot more! If you'd prefer not to take the risk, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains as far ahead as 12 months in advance. If your preferred air carrier hasn't released tickets yet, check back often as deals are updated all the time on Expedia.

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