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

View AU$185 flight on Tue, 30 Sep. 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 for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

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

January is typically the cheapest month to fly

From AU$336 - AU$991 per traveller.

Graph displaying average flight prices per month

Flight from Las Vegas to Idaho Falls route information
Origin airport
Harry Reid Intl.
Destination airport
Idaho Falls Regional
Distance
861 km
Average flight time
1 hour 46 mins

Your quick guide to flights from Las Vegas to Idaho Falls

Pick up great flights from Las Vegas to Idaho Falls

With Expedia, you have your pick of flights a day with 13 airlines covering flights from Las Vegas to Idaho Falls. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Las Vegas to Idaho Falls that take around hours.

Find cheap flights from Las Vegas to Idaho Falls

From the great flight deals with prices currently ranging from to , you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Las Vegas to Idaho Falls around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Idaho Falls is normally in .

Reasons to book your flight from Las Vegas to Idaho Falls with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Las Vegas to Idaho Falls across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Idaho Falls right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from Harry Reid Airport (formerly McCarran Airport) to IDA?
Based on fares offered within the last 7 days on Expedia for flights departing within the next year, round-trip flights from Harry Reid Airport (formerly McCarran Airport) to Idaho Falls Regional Airport (IDA) start from . Book today to score the best price for your 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?
We get that circumstances change unexpectedly, so we've made it as easy as possible for you to cancel your flight online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from Harry Reid Airport (formerly McCarran Airport) to Idaho Falls Regional Airport (IDA) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Harry Reid Airport (formerly McCarran Airport) to IDA flights, you'll see a "no change fees" filter for you to select.
How far is the flight from LAS to IDA?
A flight distance of just 870 kilometres separates Las Vegas and Idaho Falls. Once you're up in the skies, you won't get a chance to do much more than read the in-flight magazine.
Which airlines fly direct from LAS to IDA?
Offering 8 monthly flights, Allegiant Air (G4) is a top choice when flying directly from LAS to Idaho Falls Regional Airport (IDA).
Are Harry Reid Airport (formerly McCarran Airport) to IDA flight tickets cheaper when they're purchased at the last minute?
Flight prices are constantly going up and down, so not always. While last-minute deals between LAS and Idaho Falls Regional Airport are possible, it also makes sense to keep track of prices well before you fly. In fact, some carriers advertise their prices up to 12 months prior to the departure date. Expedia is continuously updating the biggest airfare bargains around, so check back often and be ready to secure your seat when prices drop.

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