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Cheap flights from Las Vegas to Idaho Falls

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Compare Las Vegas to Idaho Falls flight deals

Find the cheapest month or even day of the year to fly to Idaho Falls

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Flight deals from Las Vegas to Idaho Falls

Looking for a cheap last-minute deal or the best return flight from Las Vegas to Idaho Falls? Find the lowest prices on one-way and return tickets right here.
Idaho Falls.P5,055 per passenger.Departing Fri, 11 Apr, returning Mon, 28 Apr.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Las Vegas Harry Reid International on Fri, 11 Apr, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 28 Apr, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From P5,055, select.
Idaho Falls.P5,605 per passenger.Departing Wed, 12 Mar, returning Mon, 17 Mar.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Las Vegas Harry Reid International on Wed, 12 Mar, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 17 Mar, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From P5,605, select.
Idaho Falls.P5,620 per passenger.Departing Wed, 19 Mar, returning Mon, 7 Apr.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Las Vegas Harry Reid International on Wed, 19 Mar, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 7 Apr, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From P5,620, select.
Idaho Falls.P6,079 per passenger.Departing Fri, 16 May, returning Mon, 2 Jun.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Las Vegas Harry Reid International on Fri, 16 May, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 2 Jun, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From P6,079, select.
Idaho Falls.P6,084 per passenger.Departing Fri, 16 May, returning Mon, 19 May.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Las Vegas Harry Reid International on Fri, 16 May, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 19 May, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From P6,084, select.
Idaho Falls.P6,429 per passenger.Departing Fri, 25 Apr, returning Mon, 5 May.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Las Vegas Harry Reid International on Fri, 25 Apr, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 5 May, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From P6,429, select.
Idaho Falls.P6,944 per passenger.Departing Fri, 25 Jul, returning Mon, 11 Aug.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Las Vegas Harry Reid International on Fri, 25 Jul, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 11 Aug, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From P6,944, select.
Idaho Falls.P7,040 per passenger.Departing Mon, 4 Aug, returning Mon, 11 Aug.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Las Vegas Harry Reid International on Mon, 4 Aug, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 11 Aug, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From P7,040, select.

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

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Las Vegas to Idaho Falls flights are currently cheapest in April.
Mar
from P5,605
Apr
from P5,055
May
from P6,084
Jun
from P7,685
Jul
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Aug
from P7,040
Sep
from P37,666
Oct
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Nov
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Dec
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Jan
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Feb
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Direct flights from Las Vegas to Idaho Falls

Las Vegas to Idaho Falls: Alternative routes

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

Las Vegas to Idaho Falls: Flight information

The things to know before you go.
Cheapest flight foundP5,055
Cheapest month to flyApril
Average flight time1 hr, 48 mins
Most popular airlineAllegiant Air
Average flights per week6

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

The best price we found for a return flight from Las Vegas to Idaho Falls is P5,055. 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 48 minutes is the average flight time from Las Vegas to Idaho Falls.
Allegiant Air flies direct from Las Vegas to Idaho Falls.
As of March 2025, there are 6 flights per week flying from Las Vegas to Idaho Falls.
The cheapest month to fly from Las Vegas to Idaho Falls is usually March 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Las Vegas to Idaho Falls Airport on Friday, 11 April 2025.
Yes – the average flight time is 1 hour and 48 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 Idaho Falls 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 Idaho Falls is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Idaho Falls is Allegiant Air .

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

  • Get your trip started at Harry Reid Airport (formerly McCarran Airport) (LAS), the main airport in Las Vegas. Search for flights from Las Vegas to Idaho Falls Regional Airport (IDA) that depart from this terminal.

  • Take a direct flight from Las Vegas to Idaho Falls Regional Airport and you'll be travelling for around 1 hour 51 minutes.

  • The timezone in Idaho Falls is UTC-6, which is 1 hour ahead of Las Vegas. Idaho Falls Regional Airport is located in Idaho Falls.

  • The most popular route is from Harry Reid Airport (formerly McCarran Airport) (LAS) to Idaho Falls Regional Airport (IDA), with 1 direct services every week. If you'd like to head off as soon as possible, the earliest flight from LAS to IDA is the 08:00 Allegiant Air service. If you have other commitments or plans on your day of travel, the final departure is at 19:06 with Allegiant Air.

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

  • Travelling during a peak month like October? High seasons (like summer, Christmas/New Year and spring break) can easily add another hour at security. Play things extra safe and arrive up to four hours ahead of international flights and two hours before a domestic departure.

Airports in Las Vegas

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

  • You can find a direct flight from Las Vegas to Idaho Falls Regional Airport (IDA) departing from Harry Reid Airport (formerly McCarran Airport) Airport (LAS).

  • When departing from LAS, you can take a direct flight from Las Vegas to Idaho Falls Regional Airport with Allegiant Air.

  • LAS is around 19 kilometres from central Las Vegas. If you're ride-sharing, driving or catching a cab from the centre, it'll take you 15 minutes or so to get there, depending on traffic. If you're taking public transport, expect the journey time to be approximately 1 hour.

  • Catching an early flight from Las Vegas to Idaho Falls Regional Airport? Avoid the last-minute rush to the terminal (and get some extra shut-eye) by picking one of these hotels near Harry Reid Airport (formerly McCarran Airport) Airport:

About Idaho Falls Regional Airport (IDA)

Getting from Idaho Falls Regional Airport (IDA) to central Idaho Falls

  • From Idaho Falls Regional Airport, Idaho Falls is approximately 5 kilometres away. It takes around 9 minutes to get to the centre driving.

  • It takes around 59 minutes if you're travelling on public transport.

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

  • Pick up a one-way ticket from Las Vegas to Idaho Falls Regional Airport from P2,523 or travel return from just P5,055. Fares listed are subject to change and may differ when you make your booking.

  • Don't leave things to the last moment. You're more likely to get cheap tickets from Las Vegas to IDA if you book in advance. Airlines often have some excellent early bird discounts.

  • The 'Whole month' search tool shows you the cheapest tickets from Las Vegas to Idaho Falls Regional Airport across the month. It's a good way to find a bargain if your trip dates are flexible.

  • Create a Price Alert for cheap tickets from Las Vegas to IDA. There's no need to search every day to find out if fares have dropped. We'll update you the moment the price changes.

  • Make the most of the filters to find your ideal trip. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Las Vegas to Idaho Falls Regional Airport, use the 'Sort by' tool. You can also filter by airline, arrival and departure times, and number of stops.

The best time to fly from Las Vegas to Idaho Falls Regional Airport (IDA)

  • It's time to pick your trip dates for your flight from Las Vegas to Idaho Falls Regional Airport. July is the busiest month to travel to Idaho Falls. If you want a more low-key vibe, go in February.

  • The warmest month in Idaho Falls is July, with temperatures ranging between 11ºC and 35ºC. Book your flights from Las Vegas to IDA in this month if you enjoy this type of weather.

  • Travel in January for cooler conditions. Average temperatures range between -15ºC and 1ºC. However, this destination delivers on a good time whenever you book your cheap flights from Las Vegas to Idaho Falls Regional Airport.

More about Idaho Falls

  • When it comes to searching for somewhere to lay your head, you'll find the most popular stays in Idaho Falls right here. Check out these hotels after locking in your flight from Las Vegas to Idaho Falls Regional Airport:

  • Idaho Falls River Walk and Museum of Idaho are a couple of leading attractions to add to your Idaho Falls travel itinerary. Keep the sightseeing going at Idaho Falls Zoo at Tautphaus Park.

Complete your Idaho Falls trip with a car rental

  • Once you've locked in your hotel and cheap flight from Las Vegas to Idaho Falls Regional Airport, next up is choosing one of our car rentals in Idaho Falls. Explore the exclusive deals and easily compare your options on price, pick-up convenience, and more.

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

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