Skyscanner

Cheap flight tickets from Idaho Falls to Las Vegas

Travellers and cabin class

Compare Idaho Falls to Las Vegas flight deals

Find the cheapest month or even day of the year to fly to Las Vegas

Book the best Las Vegas fare with no extra fees

Flight deals from Idaho Falls to Las Vegas

Looking for a cheap last-minute deal or the best return flight from Idaho Falls to Las Vegas? Find the lowest prices on one-way and return tickets right here.
Las Vegas.RM395 per passenger.Departing Mon, 2 Jun, returning Fri, 13 Jun.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 2 Jun, arriving in Las Vegas Harry Reid International.Inbound direct flight with Allegiant Air departs from Las Vegas Harry Reid International on Fri, 13 Jun, arriving in Idaho Falls.Price includes taxes and charges.From RM395, select.
Las Vegas.RM411 per passenger.Departing Mon, 8 Sep, returning Fri, 19 Sep.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 8 Sep, arriving in Las Vegas Harry Reid International.Inbound direct flight with Allegiant Air departs from Las Vegas Harry Reid International on Fri, 19 Sep, arriving in Idaho Falls.Price includes taxes and charges.From RM411, select.
Las Vegas.RM419 per passenger.Departing Fri, 4 Jul, returning Fri, 25 Jul.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 4 Jul, arriving in Las Vegas Harry Reid International.Inbound direct flight with Allegiant Air departs from Las Vegas Harry Reid International on Fri, 25 Jul, arriving in Idaho Falls.Price includes taxes and charges.From RM419, select.
Las Vegas.RM436 per passenger.Departing Fri, 8 Aug, returning Fri, 15 Aug.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 8 Aug, arriving in Las Vegas Harry Reid International.Inbound direct flight with Allegiant Air departs from Las Vegas Harry Reid International on Fri, 15 Aug, arriving in Idaho Falls.Price includes taxes and charges.From RM436, select.
Las Vegas.RM437 per passenger.Departing Mon, 26 May, returning Fri, 13 Jun.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 26 May, arriving in Las Vegas Harry Reid International.Inbound direct flight with Allegiant Air departs from Las Vegas Harry Reid International on Fri, 13 Jun, arriving in Idaho Falls.Price includes taxes and charges.From RM437, select.
Las Vegas.RM453 per passenger.Departing Fri, 22 Aug, returning Fri, 12 Sep.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 22 Aug, arriving in Las Vegas Harry Reid International.Inbound direct flight with Allegiant Air departs from Las Vegas Harry Reid International on Fri, 12 Sep, arriving in Idaho Falls.Price includes taxes and charges.From RM453, select.
Las Vegas.RM462 per passenger.Departing Mon, 22 Sep, returning Fri, 3 Oct.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 22 Sep, arriving in Las Vegas Harry Reid International.Inbound direct flight with Allegiant Air departs from Las Vegas Harry Reid International on Fri, 3 Oct, arriving in Idaho Falls.Price includes taxes and charges.From RM462, select.
Las Vegas.RM462 per passenger.Departing Mon, 28 Jul, returning Fri, 15 Aug.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 28 Jul, arriving in Las Vegas Harry Reid International.Inbound direct flight with Allegiant Air departs from Las Vegas Harry Reid International on Fri, 15 Aug, arriving in Idaho Falls.Price includes taxes and charges.From RM462, select.

Find the cheapest month to fly from Idaho Falls to Las Vegas

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 flights are currently cheapest in June.
May
from RM479
Jun
from RM395
Jul
from RM419
Aug
from RM436
Sep
from RM411
Oct
from RM492
Nov
Find prices
Dec
from RM772
Jan
Find prices
Feb
Find prices
Mar
Find prices
Apr
Find prices

Direct flights from Idaho Falls to Las Vegas

Alternative Idaho Falls to Las Vegas routes

Looking for the cheapest, fastest or easiest route from Idaho Falls to Las Vegas? You could fly into the following airports instead.

Idaho Falls to Las Vegas: Flight information

The things to know before you go.
Cheapest flight foundRM395
Cheapest month to flyJune
Average flight time1 hr, 45 mins
Most popular airlineAllegiant Air
Average flights per week3

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

There are 4 airports in Las Vegas: Las Vegas North Air Terminal, Las Vegas Harry Reid International, Las Vegas Henderson Sky Harbor, and Boulder City.
The best price we found for a return flight from Idaho Falls to Las Vegas is RM395. 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.
Allegiant Air flies direct from Idaho Falls to Las Vegas.
As of May 2025, there are 3 flights per week flying from Idaho Falls to Las Vegas.
The cheapest month to fly from Idaho Falls to Las Vegas is usually May 2025.
If you're flying from Idaho Falls Airport, the cheapest airport near Las Vegas is Las Vegas Harry Reid International – which is 4.3 km away from the centre of Las Vegas. We've found flights into this airport from RM395.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Idaho Falls Airport to Las Vegas on Monday, 2 June 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 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.
In May, the average temperature is usually around 21°C. July is typically the warmest month in Las Vegas, when it usually averages around 37°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging -0°C. The rainiest month is February.
Currently, Allegiant Air offers the cheapest flight tickets to Las Vegas.

Flying from Idaho Falls Regional Airport (IDA) to Las Vegas: what you need to know

  • Expect to be travelling for 1 hour 50 minutes. On average, that's the time it takes for a direct flight from Idaho Falls Regional Airport to Las Vegas.

  • Idaho Falls Regional Airport is located in Idaho Falls. Following the UTC-7 timezone, Las Vegas is one hour behind Idaho Falls.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This ensures you have enough time to board your IDA to Las Vegas flight.

  • Heading off during a peak period like school or public holidays? Expect longer lines at security and check-in. Give yourself extra leeway and arrive up to four hours before international flights and two hours before domestic departures.

  • Direct Idaho Falls Regional Airport to Las Vegas tickets are available for booking. Harry Reid Airport (formerly McCarran Airport) (LAS) is where you'll complete your journey.

  • Allegiant Air is a popular airline that offers direct flights from Idaho Falls Regional Airport to Las Vegas.

  • The journey from central Idaho Falls to IDA takes about 1 hour by public transport. If you drive, ride-share or grab a cab, you'll cover the 3 kilometres in 10 minutes or so, depending on traffic conditions.

  • Want a relaxed start to your holiday? Stay near IDA. Whether you're taking an early flight from Idaho Falls Regional Airport to Las Vegas or don't want departure day to feel hectic, these hotels are worth a look:

  • 80.03% of flights departing from Idaho Falls Regional Airport touch down at their destination on time. With its strong on-time stats, delays are unlikely when setting off from IDA.

  • You'll find IDA at 2140 North Skyline.

How to find the cheapest flights from Idaho Falls Regional Airport (IDA) to Las Vegas

  • RM189 is the cheapest price we've seen for a one-way Idaho Falls Regional Airport to Las Vegas flight. A round-trip flight ticket right now is RM395. Depending on how early you book and the availability, these fares may change.

  • To score cheap flights from IDA to Las Vegas, reserve your trip five months ahead of your departure date.

  • The best month for scoring cheap Idaho Falls Regional Airport to Las Vegas tickets is September. Use the 'Whole month' tool to compare prices, then choose the dates offering the lowest fares.

  • There's no need to keep looking every day to see if fares have dropped when you create a Price Alert. We'll let you know the moment there's an even bigger deal on cheap flights from IDA to Las Vegas.

  • Tailor your trip with filters. Select your arrival and departure times, airlines and total journey duration. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest' flights from Idaho Falls Regional Airport to Las Vegas.

Airports in Las Vegas

Harry Reid Airport (formerly McCarran Airport) (LAS)

  • Harry Reid Airport (formerly McCarran Airport) (LAS) to central Las Vegas takes about 15 minutes by car. The centre is roughly 19 kilometres away.

  • It typically takes 1 hour if you're using public transport.

  • If you're coming in on a late flight from Idaho Falls Regional Airport to Las Vegas, few things beat the convenience of staying near the terminal. Grab your bags from the carousel and then be showered and resting not long after at one of these accommodation options near LAS:

  • Get your adventure underway by picking up a Harry Reid Airport (formerly McCarran Airport) rental car. Grab a set of wheels from Dollar, Thrifty or Alamo and experience the lesser-explored corners of Las Vegas and beyond.

  • Get the best deal by booking your vehicle from Harry Reid Airport (formerly McCarran Airport) around one week before your flight from IDA to Las Vegas.

  • The address for LAS is 5757 Wayne Newton Boulevard.

Best time to go to Las Vegas

  • Visit Las Vegas in peak season if you prefer a busy atmosphere, but remember that prices are typically higher. Alternatively, book your flights from Idaho Falls Regional Airport to Las Vegas during low season when prices are cheaper and it's less crowded.

  • Book an Idaho Falls Regional Airport to Las Vegas flight ticket with a departure in July if you're eager to experience the city during its warmest month. Expect temperatures to range from 23ºC (73ºF) to 42ºC (108ºF).

  • If you want to travel in cooler conditions, look for a cheap ticket from IDA to Las Vegas in January when temperatures average between -1ºC (30ºF) and 13ºC (55ºF).

More about Las Vegas

Explore more of United States

  • You've done Las Vegas, now it's time to explore other corners of United States. Journey around 370 kilometres south-west to Los Angeles to tick off its top attractions. From Griffith Observatory to The Broad and La Brea Tar Pits & Museum, your itinerary will be busy.

  • If you're interested in discovering another side of United States, consider Phoenix, about 418 kilometres south-east of Las Vegas. Desert Botanical Garden, Heard Museum and Papago Park are the start of reasons to visit.

Plan the rest of your trip from Idaho Falls to Las Vegas

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