£184 Cheap Flights from Las Vegas (LAS) to Idaho Falls (IDA)

View £184 flight on Mon, 18 Aug 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 £184 for one-way flights and £178 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 19 Aug - Wed, 20 Aug
LAS
Las Vegas
IDA
Idaho Falls
£178 Return, found 2 days ago
£178
Return
found 2 days ago
Select Delta flight, departing Tue, 19 Aug from Las Vegas to Idaho Falls, returning Wed, 20 Aug, priced at £178 found 2 days ago
Delta
Fri, 15 Aug - Wed, 20 Aug
LAS
Las Vegas
IDA
Idaho Falls
£199 Return, found 2 days ago
£199
Return
found 2 days ago
Select Delta flight, departing Fri, 15 Aug from Las Vegas to Idaho Falls, returning Wed, 20 Aug, priced at £199 found 2 days ago
United
Thu, 21 Aug - Sat, 23 Aug
LAS
Las Vegas
IDA
Idaho Falls
£229 Return, found 2 days ago
£229
Return
found 2 days ago
Select United flight, departing Thu, 21 Aug from Las Vegas to Idaho Falls, returning Sat, 23 Aug, priced at £229 found 2 days ago
Delta
Tue, 19 Aug - Sun, 24 Aug
LAS
Las Vegas
IDA
Idaho Falls
£236 Return, found 2 days ago
£236
Return
found 2 days ago
Select Delta flight, departing Tue, 19 Aug from Las Vegas to Idaho Falls, returning Sun, 24 Aug, priced at £236 found 2 days ago
Alaska Airlines
Fri, 22 Aug - Mon, 25 Aug
LAS
Las Vegas
IDA
Idaho Falls
£243 Return, found 11 hours ago
£243
Return
found 11 hours ago
Select Alaska Airlines flight, departing Fri, 22 Aug from Las Vegas to Idaho Falls, returning Mon, 25 Aug, priced at £243 found 11 hours ago
Delta
Sat, 16 Aug - Wed, 20 Aug
LAS
Las Vegas
IDA
Idaho Falls
£243 Return, found 2 days ago
£243
Return
found 2 days ago
Select Delta flight, departing Sat, 16 Aug from Las Vegas to Idaho Falls, returning Wed, 20 Aug, priced at £243 found 2 days ago
United
Thu, 21 Aug - Sun, 24 Aug
LAS
Las Vegas
IDA
Idaho Falls
£251 Return, found 2 days ago
£251
Return
found 2 days ago
Select United flight, departing Thu, 21 Aug from Las Vegas to Idaho Falls, returning Sun, 24 Aug, priced at £251 found 2 days ago
Delta
Fri, 15 Aug - Sun, 24 Aug
LAS
Las Vegas
IDA
Idaho Falls
£259 Return, found 2 days ago
£259
Return
found 2 days ago
Select Delta flight, departing Fri, 15 Aug from Las Vegas to Idaho Falls, returning Sun, 24 Aug, priced at £259 found 2 days ago
Delta
Mon, 18 Aug - Thu, 21 Aug
LAS
Las Vegas
IDA
Idaho Falls
£274 Return, found 2 days ago
£274
Return
found 2 days ago
Select Delta flight, departing Mon, 18 Aug from Las Vegas to Idaho Falls, returning Thu, 21 Aug, priced at £274 found 2 days ago
American Airlines
Sun, 17 Aug - Wed, 20 Aug
LAS
Las Vegas
IDA
Idaho Falls
£277 Return, found 2 days ago
£277
Return
found 2 days ago
Select American Airlines flight, departing Sun, 17 Aug from Las Vegas to Idaho Falls, returning Wed, 20 Aug, priced at £277 found 2 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 £164 - £478 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
Airlines serving
Alaska Airlines
Return price
£177
Distance
861 km
Average flight time
1 hour 48 mins

Compare flights from Las Vegas to Idaho Falls easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Las Vegas to Idaho Falls. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Idaho Falls Regional in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Harry Reid Intl. to Idaho Falls Regional.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Harry Reid Intl. (LAS) to Idaho Falls Regional (IDA)

The easiest way to view the best deals on flights from Las Vegas to Idaho Falls today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Harry Reid Intl. to Idaho Falls Regional start at just £178 and range up to £277.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Las Vegas and Idaho Falls
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Las Vegas to Idaho Falls flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Harry Reid Intl. to Idaho Falls Regional for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

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 £178. 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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