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77 € Cheap Flights from Las Vegas to Idaho Falls

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      Travellers and cabin class, 1 Adult, Economy
      Allegiant Air

      Compare Las Vegas to Idaho Falls flight deals

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

      Book the best Idaho Falls fare with no extra fees

      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 Airport? If you want to travel next month, return fares start from 81 €. Find the lowest prices on one-way and return tickets right here.
      Idaho Falls.77 € per passenger.Departing Fri, 30 Oct, returning Mon, 9 Nov.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Harry Reid International on Fri, 30 Oct, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 9 Nov, arriving in Harry Reid International.Price includes taxes and charges.From 77 €, select.
      Idaho Falls.81 € per passenger.Departing Fri, 16 Oct, returning Mon, 26 Oct.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Harry Reid International on Fri, 16 Oct, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 26 Oct, arriving in Harry Reid International.Price includes taxes and charges.From 81 €, select.
      Idaho Falls.81 € per passenger.Departing Thu, 10 Dec, returning Mon, 14 Dec.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Harry Reid International on Thu, 10 Dec, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 14 Dec, arriving in Harry Reid International.Price includes taxes and charges.From 81 €, select.
      Idaho Falls.81 € per passenger.Departing Fri, 8 Jan, returning Mon, 11 Jan.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Harry Reid International on Fri, 8 Jan, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 11 Jan, arriving in Harry Reid International.Price includes taxes and charges.From 81 €, select.
      Idaho Falls.84 € per passenger.Departing Fri, 22 Jan, returning Mon, 8 Feb.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Harry Reid International on Fri, 22 Jan, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 8 Feb, arriving in Harry Reid International.Price includes taxes and charges.From 84 €, select.
      Idaho Falls.95 € per passenger.Departing Mon, 21 Sep, returning Mon, 5 Oct.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Harry Reid International on Mon, 21 Sep, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 5 Oct, arriving in Harry Reid International.Price includes taxes and charges.From 95 €, select.
      Idaho Falls.96 € per passenger.Departing Fri, 20 Nov, returning Mon, 30 Nov.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Harry Reid International on Fri, 20 Nov, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 30 Nov, arriving in Harry Reid International.Price includes taxes and charges.From 96 €, select.
      Idaho Falls.99 € per passenger.Departing Mon, 21 Sep, returning Mon, 28 Sep.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Harry Reid International on Mon, 21 Sep, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 28 Sep, arriving in Harry Reid International.Price includes taxes and charges.From 99 €, select.
      Idaho Falls.101 € per passenger.Departing Fri, 27 Nov, returning Mon, 14 Dec.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Harry Reid International on Fri, 27 Nov, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 14 Dec, arriving in Harry Reid International.Price includes taxes and charges.From 101 €, select.
      Idaho Falls.109 € per passenger.Departing Wed, 23 Dec, returning Mon, 11 Jan.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Harry Reid International on Wed, 23 Dec, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 11 Jan, arriving in Harry Reid International.Price includes taxes and charges.From 109 €, select.
      Idaho Falls.111 € per passenger.Departing Fri, 19 Feb, returning Mon, 8 Mar.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Harry Reid International on Fri, 19 Feb, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 8 Mar, arriving in Harry Reid International.Price includes taxes and charges.From 111 €, select.
      Idaho Falls.115 € per passenger.Departing Fri, 23 Apr, returning Mon, 3 May.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Harry Reid International on Fri, 23 Apr, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Mon, 3 May, arriving in Harry Reid International.Price includes taxes and charges.From 115 €, select.
      Idaho Falls.124 € per passenger.Departing Fri, 23 Apr, returning Fri, 23 Apr.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Harry Reid International on Fri, 23 Apr, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 23 Apr, arriving in Harry Reid International.Price includes taxes and charges.From 124 €, select.
      Idaho Falls.125 € per passenger.Departing Fri, 19 Feb, returning Fri, 26 Feb.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Harry Reid International on Fri, 19 Feb, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 26 Feb, arriving in Harry Reid International.Price includes taxes and charges.From 125 €, select.
      Idaho Falls.133 € per passenger.Departing Fri, 12 Mar, returning Fri, 26 Mar.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Harry Reid International on Fri, 12 Mar, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 26 Mar, arriving in Harry Reid International.Price includes taxes and charges.From 133 €, select.
      Idaho Falls.240 € per passenger.Departing Fri, 26 Mar, returning Fri, 9 Apr.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Harry Reid International on Fri, 26 Mar, arriving in Idaho Falls.Inbound direct flight with Allegiant Air departs from Idaho Falls on Fri, 9 Apr, arriving in Harry Reid International.Price includes taxes and charges.From 240 €, select.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Las Vegas to Idaho Falls found in the last 4 days, and are subject to change and availability.

      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 October.
      Sep
      from 99 €
      Oct
      from 81 €
      Nov
      from 96 €
      Dec
      from 81 €
      Jan
      from 81 €
      Feb
      from 125 €
      Mar
      from 133 €
      Apr
      from 124 €
      May
      from 516 €
      Jun
      from 342 €
      Jul
      Find prices
      Aug
      Find prices

      Direct flights from Las Vegas to Idaho Falls

      Allegiant Air

      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.

      Idaho Falls

      4km from central Idaho Falls
      ClosestCheapest
      from 77 €
      Search flights

      Pocatello

      79km from central Idaho Falls
      from 392 €
      Search flights

      Las Vegas to Idaho Falls: Flight information

      The things to know before you go.
      Cheapest flight found77 €
      Cheapest month to flyOctober
      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 77 €. 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 September 2026, 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 October.
      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, 30 October 2026.
      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

      • Las Vegas's main airport is Las Vegas Harry Reid International Airport (LAS). Explore your options for leaving from here when booking flights from Las Vegas to Idaho Falls Regional Airport (IDA).

      • Book a direct Las Vegas to Idaho Falls Regional Airport flight and you'll be travelling for around 1 hour 50 minutes.

      • The timezone in Idaho Falls is UTC-7, which is one hour ahead of Las Vegas. Idaho Falls Regional Airport is located in Idaho Falls.

      • Arrive at the airport on time so you don't miss your flight from Las Vegas to IDA. Be there at least two hours ahead for international flights and an hour early for domestic departures to skip the mad dash to your gate.

      • March is a busy travel month. If you're taking off then or during a major holiday like July Fourth, show up even earlier. Aim for at least two hours ahead for domestic flights and as much as four hours for international journeys.

      Airports in Las Vegas

      Las Vegas Harry Reid International Airport (LAS)

      • Enjoy an uninterrupted journey from Las Vegas Harry Reid International Airport (LAS). Direct flights from Las Vegas to Idaho Falls Regional Airport (IDA) operate from here.

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

      • The preferred airline for passengers flying between LAS and IDA is Allegiant Air.

      • Allegiant Air is the most punctual carrier on this route, with 70.97% of its services reaching their destination on time.

      • LAS is around 8 kilometres from central Las Vegas. If you're driving, ride-sharing or catching a taxi from the centre, it'll take you 10 minutes or so to get there, depending on traffic conditions. If you're taking public transport, expect the travel time to be around 25 minutes.

      • Planning to catch an early flight from Las Vegas to Idaho Falls Regional Airport? Avoid the stress of rushing to the terminal (and sneak in some bonus sleep) by staying at one of these hotels close to Las Vegas Harry Reid International Airport:

      • Of all flights leaving Las Vegas Harry Reid International Airport, 79% touch down on time at their destination.

      • LAS's address is 5757 Wayne Newton Boulevard.

      About Idaho Falls Regional Airport (IDA)

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

      • Central Idaho Falls is around 8 kilometres from Idaho Falls Regional Airport and takes about 10 minutes to reach by car. Look into how to get from the airport to the city, whether that's with a taxi, car hire or ride-share.

      • Travelling by public transport will take you roughly 30 minutes.

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

      • 39 € is the best price for a one-way ticket from Las Vegas to Idaho Falls Regional Airport. Return flights start at 77 €. These fares may change depending on demand.

      • Get your hands on cheap flights from Las Vegas to IDA by booking four months ahead. Based on our research, that's the ideal time frame for finding a bargain.

      • Schedule your trip for September. That's the best month for landing the biggest deals on Las Vegas to Idaho Falls Regional Airport tickets. If you're flexible with your dates, use the 'Whole month' tool to find the cheapest price across each month.

      • Stay on top of deals for plane tickets from Las Vegas to IDA by setting up a Price Alert. We'll send you an email or notification on the app when fares go down.

      • Filters make it easier to track down a bargain for your flight from Las Vegas to Idaho Falls Regional Airport. Choose the airlines, flight times and stops that look good to you. Then sort the results by 'Cheapest' to find the most affordable option fast.

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

      • July is the most popular month for flights from Las Vegas to Idaho Falls Regional Airport (IDA). Plan your visit to Idaho Falls in December if you prefer a quieter experience.

      • When booking your Las Vegas to IDA plane ticket, consider the weather you're most comfortable in. July is the warmest month in Idaho Falls, with temperatures ranging from 9ºC (48ºF) to 35ºC (95ºF).

      • January sees temperatures of between -15ºC (5ºF) and 1ºC (34ºF). Look for cheap tickets from Las Vegas to Idaho Falls Regional Airport around that time if you want to travel when it's cooler.

      More about Idaho Falls

      • When it comes to searching for somewhere to lay your head, you'll find the best stays in Idaho Falls right here. Browse these options after you've booked your flight from Las Vegas to Idaho Falls Regional Airport:

      • You'll find plenty of terrific things to do in Idaho Falls when you're ready to get out and sightsee. Start exploring at Snake River Greenbelt followed by Idaho Falls River Walk and East Idaho Aquarium.

      Explore more of the United States

      • You've seen Idaho Falls, now it's time to explore other parts of the United States. Travel about 257 kilometres south to Ogden to check off its leading attractions. From Snowbasin Resort to Dinosaur Park and Museum and Ogden Botanical Gardens, you'll have a packed itinerary ahead.

      • Next up? Find your way to Layton. It's about 274 kilometres south of Idaho Falls and boasts highlights including SeaQuest Utah and Layton Utah Temple.

      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 12 days.