Cheap Flights from Idaho Falls to Las Vegas Harry Reid International

Compare Idaho Falls to Las Vegas Harry Reid International flight deals

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Flight deals from Idaho Falls to Las Vegas Harry Reid International

Looking for a cheap last-minute deal or the best return flight from Idaho Falls to Las Vegas Harry Reid International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Idaho Falls to Las Vegas Harry Reid International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Idaho Falls to Las Vegas Harry Reid International flights are currently cheapest in November.

Direct flights from Idaho Falls to Las Vegas Harry Reid International

Idaho Falls to Las Vegas Harry Reid International: Alternative routes

Compare routes from Idaho Falls to Las Vegas below. You may find an airport to fly into that's cheaper, faster, or easier than Las Vegas Harry Reid International.

Idaho Falls to Las Vegas: Flight information

The things to know before you go.
Cheapest flight foundRs12,407
Cheapest month to flyNovember
Average flight time1 hr, 45 mins
Most popular airlineAllegiant Air
Average flights per week3

Finding cheap flights from Idaho Falls to Las Vegas Harry Reid International: Frequently asked questions

The best price we found for a return flight from Idaho Falls to Las Vegas Harry Reid International is Rs25,976. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 45 minutes is the average flight time from Idaho Falls to Las Vegas Harry Reid International.
Allegiant Air flies direct from Idaho Falls to Las Vegas Harry Reid International.
As of September 2025, there are 3 flights per week flying from Idaho Falls to Las Vegas Harry Reid International.
The cheapest month to fly from Idaho Falls to Las Vegas Harry Reid International is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Idaho Falls Airport to Las Vegas Harry Reid International Airport on Monday, 20 October 2025.
Yes – the average flight time is 1 hour and 45 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Las Vegas Harry Reid International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Las Vegas is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Allegiant Air offers the cheapest flight tickets to Las Vegas Harry Reid International.

Travelling from Idaho Falls Regional Airport (IDA) to Harry Reid Airport (formerly McCarran Airport) (LAS): what you need to know

  • The average time for a direct flight from Idaho Falls Regional Airport to Harry Reid Airport (formerly McCarran Airport) is 1 hour 45 minutes.

  • Las Vegas is one hour behind Idaho Falls and observes the UTC-7 timezone.

  • Give yourself plenty of time to make your IDA to LAS flight. As a rule of thumb, arrive two hours before international departures and an hour ahead for domestic flights.

  • You'll likely experience longer lines in popular months such as July. Arriving up to four hours ahead of an international flight and two hours for domestic departures will give you ample time for security and boarding.

  • Travelling to Las Vegas (and then seeing more of United States!) is a breeze with Allegiant Air. This popular airline has direct flights from Idaho Falls Regional Airport to Harry Reid Airport (formerly McCarran Airport).

  • The airline that serves the most passengers on this route is Allegiant Air.

  • The most punctual carrier that operates IDA to LAS flights is Allegiant Air. Its services land as planned 77.78% of the time.

  • Think about adding a stopover when booking your ticket from Idaho Falls Regional Airport to Harry Reid Airport (formerly McCarran Airport). Just deselect 'Direct flights only' to break up your trip, or even explore someplace new along the way. Here's where you can stop between IDA and LAS:

    • Salt Lake City International Airport

    • Phoenix Sky Harbour International Airport

    • John Wayne Airport

How to find the cheapest flights from Idaho Falls Regional Airport (IDA) to Harry Reid Airport (formerly McCarran Airport) (LAS)

  • Right now, Rs12,407 is the cheapest price we've found for a one-way Idaho Falls Regional Airport to Harry Reid Airport (formerly McCarran Airport) flight. The best price for a return ticket is Rs25,976. Keep in mind that fares may change due to demand when booking.

  • Score cheap tickets from IDA to LAS by booking at least ten months ahead. According to our research, that's the sweet spot for finding a bargain.

  • Schedule your trip for September. That's the cheapest month for flights from Idaho Falls Regional Airport to Harry Reid Airport (formerly McCarran Airport). If you have flexibility with your dates, use the 'Whole month' tool to see the cheapest price across each month.

  • Spend less time searching for cheap flights from IDA to LAS by creating a Price Alert. You'll get an email or push notification on the app when a new discounted fare appears.

  • Lock in the right flight for you with the help of the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Idaho Falls Regional Airport to Harry Reid Airport (formerly McCarran Airport), use the 'Sort by' tool. You can also filter results by airline, departure and arrival times, and number of stops.

Handy information about Idaho Falls Regional Airport (IDA)

  • IDA is located at 2140 North Skyline.

  • Idaho Falls Regional Airport has a strong on-time record, so you're less likely to experience disruptions. Departures from IDA make it to their destination as scheduled 80.03% of the time.

  • Idaho Falls Regional Airport is around 5 kilometres from central Idaho Falls. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 10 minutes or so to arrive, depending on the traffic.

  • The journey on public transport typically takes 1 hour.

  • Catching an early flight from Idaho Falls Regional Airport to Harry Reid Airport (formerly McCarran Airport)? Avoid the hassle of rushing to the airport (and get some extra shut-eye) by picking one of these stays close to IDA:

Arriving at Harry Reid Airport (formerly McCarran Airport) (LAS)

Getting from Harry Reid Airport (formerly McCarran Airport) (LAS) to central Las Vegas

  • You'll find LAS at 5757 Wayne Newton Boulevard.

  • From Harry Reid Airport (formerly McCarran Airport), Las Vegas is approximately 19 kilometres away. It takes around 15 minutes to reach the centre driving.

  • Getting to the centre on public transport will take you roughly 1 hour.

When to fly to Harry Reid Airport (formerly McCarran Airport) (LAS)

  • It's time to pick your travel dates for your flight from Idaho Falls Regional Airport to Harry Reid Airport (formerly McCarran Airport). October is the most popular month to visit Las Vegas. If you prefer a more relaxed vibe, go in May.

  • The warmest month in Las Vegas is July, with temperatures ranging between 23ºC and 42ºC. Lock in your flights from Idaho Falls Regional Airport to Harry Reid Airport (formerly McCarran Airport) in this month if you enjoy this type of weather.

  • January sees average temperatures of between -1ºC and 13ºC. Look for cheap tickets from IDA to LAS sometime then if you like cooler conditions.

Explore more of United States

  • Las Vegas has its own special appeal, but there are so many other corners of United States you'll want to see. About 370 kilometres south-west of Las Vegas, a trip to Los Angeles will fill your itinerary to the brim. Check out popular attractions like Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • Phoenix is another standout destination in United States and is around 418 kilometres south-east of Las Vegas. No journey is complete without visiting Desert Botanical Garden, Heard Museum and Papago Park.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.