LAS - IDA

$58 Find Cheap Flights from Las Vegas to Idaho Falls

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Las Vegas to Idaho Falls departing on 1/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Idaho Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Las Vegas to Idaho Falls, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Las Vegas to Idaho Falls, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$105
Overall average: $111
Allegiant Air
Fri 1/9Mon 1/12
LAS - IDA • Non-stop
Cheapest one-way
$58
Typical prices: $98-$156
Allegiant Air
Fri 1/23
LAS - IDA • Non-stop
Top airlines
Delta
Cheapest • from $224 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 33% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Nonstop flights
2 days a week
There are direct flights from Las Vegas to Idaho Falls 2 days a week: Mon, Fri.
Direct flights
Direct flights
Direct flights
Direct flights
Start a new search
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We hope you love your trip to Idaho Falls!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Las Vegas to Idaho Falls that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Las Vegas to Idaho Falls

Fri, Jan 9 - Mon, Jan 12
Allegiant Air Logo
11:23 am - 2:19 pm
LAS
-
IDA
1h 56mnonstop
Allegiant Air Logo
9:20 pm - 10:07 pm
IDA
-
LAS
1h 47mnonstop
$105Allegiant Air
Fri, Feb 20 - Mon, Feb 23
Allegiant Air Logo
12:45 pm - 3:31 pm
LAS
-
IDA
1h 46mnonstop
Allegiant Air Logo
10:31 pm - 11:19 pm
IDA
-
LAS
1h 48mnonstop
$108Allegiant Air
Fri, Feb 20 - Fri, Feb 27
Allegiant Air Logo
12:45 pm - 3:31 pm
LAS
-
IDA
1h 46mnonstop
Allegiant Air Logo
10:29 pm - 11:17 pm
IDA
-
LAS
1h 48mnonstop
$116Allegiant Air
Fri, Feb 6 - Mon, Feb 9
Allegiant Air Logo
11:23 am - 2:19 pm
LAS
-
IDA
1h 56mnonstop
Allegiant Air Logo
9:20 pm - 10:07 pm
IDA
-
LAS
1h 47mnonstop
$127Allegiant Air
Fri, Jan 9 - Mon, Jan 12
Multiple Airlines Logo
11:23 am - 2:19 pm
LAS
-
IDA
1h 56mnonstop
Multiple Airlines Logo
5:34 pm - 2:48 pm
IDA
-
LAS
22h 14m1 stop
$152Multiple Airlines
Fri, Jan 2 - Mon, Jan 5
Allegiant Air Logo
1:23 pm - 4:12 pm
LAS
-
IDA
1h 49mnonstop
Allegiant Air Logo
10:52 pm - 11:35 pm
IDA
-
LAS
1h 43mnonstop
$175Allegiant Air
Mon, Dec 22 - Mon, Dec 22
Allegiant Air Logo
11:31 am - 2:20 pm
LAS
-
IDA
1h 49mnonstop
Allegiant Air Logo
9:20 pm - 10:05 pm
IDA
-
LAS
1h 45mnonstop
$176Allegiant Air
Fri, Jan 9 - Mon, Jan 12
Multiple Airlines Logo
11:23 am - 2:19 pm
LAS
-
IDA
1h 56mnonstop
Multiple Airlines Logo
5:34 pm - 4:49 pm
IDA
-
LAS
24h 15m2 stops
$179Multiple Airlines
Fri, Feb 20 - Mon, Feb 23
Multiple Airlines Logo
2:28 pm - 9:41 pm
LAS
-
IDA
6h 13m1 stop
Multiple Airlines Logo
10:31 pm - 11:19 pm
IDA
-
LAS
1h 48mnonstop
$180Multiple Airlines
Fri, Feb 6 - Mon, Feb 9
Multiple Airlines Logo
11:13 am - 8:30 pm
LAS
-
IDA
8h 17m1 stop
Multiple Airlines Logo
9:20 pm - 10:07 pm
IDA
-
LAS
1h 47mnonstop
$189Multiple Airlines
Booking Insights

KAYAK's insights & trends for Las Vegas to Idaho Falls flights

Get data-powered insights and trends into flights from Las Vegas to Idaho Falls to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Las Vegas to Idaho Falls?

The average price of all round-trip flights from Las Vegas to Idaho Falls clicked on KAYAK for each day over the last 12 months.

When flying from Las Vegas to Idaho Falls, you should consider leaving on a Tuesday and avoid Wednesdays if you are looking for the best rates. For your return to Las Vegas, you’ll find the best rates on Mondays and the most expensive ones on Thursdays.

What is the cheapest month to fly from Las Vegas to Idaho Falls?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Las Vegas to Idaho Falls, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Las Vegas to Idaho Falls is November, where tickets cost $104 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $267 and $202 respectively.

Can I save money by flying with a layover from Las Vegas to Idaho Falls?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $104, prices are generally cheapest when you fly direct.

Good to know

Low seasonJanuary
Cheapest flight$58
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Las Vegas to Idaho Falls

When to book flights from Las Vegas to Idaho Falls

Are your dates flexible? Find out the best times to travel from Las Vegas to Idaho Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Las Vegas to Idaho Falls

  • Which airlines provide fair baggage limitations on their flights between Las Vegas (LAS) and Idaho Falls (IDA)?

    Southwest offers the most lenient baggage regulations while flying from Las Vegas to Idaho Falls. The airline doesn't charge you for carry-on or your first two checked bags, as they don't weigh more than 50 pounds.

  • Which major airlines operate flights from Las Vegas to Idaho Falls with pet-friendly policies?

    Your pet is welcome to accompany you on any flight operated by Southwest Airlines, Delta, American Airlines, or United Airlines between Las Vegas (LAS) and Idaho Falls (IDA). These airlines will allow you to fly with your pet in the cabin if the carrier it is in fits underneath the airplane seats plus the combined weight of the pet and the carrier is under 25 lbs.

  • Which airline route offers the most convenient and cost-effective flying options between Las Vegas and Idaho Falls?

    A connecting flight from Las Vegas (LAS) to Idaho Falls (IDA) can be a better option than a direct ticket if your budget is tight. Several carriers, including United Airlines, American Airlines, Alaska Airlines, and Southwest Airlines, offer connecting flights on this route. These airlines have their respective stopovers in Chicago, Phoenix, San Francisco, and Denver.

  • How can I travel from Las Vegas's downtown to LAS in the shortest time possible?

    Taking a taxi or rideshare service like Uber or Lyft is a convenient option. Taxis are readily available in downtown Las Vegas, and you can use a rideshare app to request a pickup. The travel time will depend on the traffic conditions, but it typically takes around 10-15 minutes to reach the airport from downtown.

  • What is the cheapest flight from Las Vegas to Idaho Falls?

    In the last 3 days, the lowest price for a flight from Las Vegas to Idaho Falls was $58 for a one-way ticket and $105 for a round-trip.

  • Do I need a passport to fly between Las Vegas and Idaho Falls?

    No

  • Which aircraft models fly most regularly from Las Vegas to Idaho Falls?

    The Airbus A319 is the aircraft model that flies most regularly on the Las Vegas to Idaho Falls flight route.

  • Which airline alliances offer flights from Las Vegas to Idaho Falls?

    SkyTeam is the only airline alliance operating flights between Las Vegas and Idaho Falls.

  • On which days can I fly direct from Las Vegas to Idaho Falls?

    You can catch a nonstop flight from Las Vegas to Idaho Falls on on Monday, and Friday.

  • Which is the best airline for flights from Las Vegas to Idaho Falls, Delta or Allegiant Air?

    The two airlines most popular with KAYAK users for flights from Las Vegas to Idaho Falls are Delta and Allegiant Air. With an average price for the route of $298 and an overall rating of 7.9, Delta is the most popular choice. Allegiant Air is also a great choice for the route, with an average price of $113 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Las Vegas to Idaho Falls?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Las Vegas to Idaho Falls.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Las Vegas to Idaho Falls?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from Las Vegas is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Las Vegas to Idaho Falls?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Idaho Falls with an airline and back to Las Vegas with another airline. Booking your flights between Las Vegas and IDA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Las Vegas to Idaho Falls?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Idaho Falls from Las Vegas up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Las Vegas to Idaho Falls

  • Looking for a cheap flight? 25% of our users found flights on this route for $121 or less one-way and $100 or less round-trip.
  • Most business travelers choose Idaho Falls Regional Airport (IDA) as their arrival airport when flying from Las Vegas to Idaho Falls. IDA is strategically located in Idaho Falls, which serves as a regional economic hub. Its proximity to businesses, industries, and corporate offices makes it a convenient choice for business travelers. It allows quick access to the city's commercial and industrial areas, reducing travel time and enhancing productivity.
  • Consider flying with Alaska Airlines, United Airlines, or Delta if you want a chance to upgrade to a first-class cabin from business, or economy class from Las Vegas (LAS) to Idaho Falls (IDA). These airlines give their customers the opportunity to request an upgrade either at check-in or during the ticketing process utilizing a special bidding mechanism.
  • The majority of environmentalists choose to fly out of Harry Reid International Airport (LAS) when flying from Las Vegas to Idaho Falls. This can be attributed to steps taken by LAS Airport to improve energy efficiency, including the creation of energy-efficient lighting systems, the use of natural lighting, as well as the adoption of energy-management techniques that help reduce greenhouse gas emissions.
  • Consider choosing Delta Air Lines, United Airlines, or American Airlines if you wish to travel from Las Vegas to Idaho Falls with your children. These airlines provide their passengers complimentary in-flight Wi-Fi connections to enable them access to a variety of kid-friendly entertainment alternatives, including streaming musical albums, cartoons, and movies.
  • Consider sleeping the night before your trip near to LAS if you're hoping to catch the first flight from Las Vegas to Idaho Falls. Because of its proximity to LAS, Best Western Mccarran Inn makes a convenient choice for a hotel.

Prefer to fly direct from Las Vegas to Idaho Falls?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Las Vegas Harry Reid Intl to Idaho Falls Fanning Field.
Find which airlines fly direct from Las Vegas Harry Reid Intl Airport to Idaho Falls Fanning Field Airport, which days they fly and book direct flights.

Direct departures

Las Vegas Harry Reid Intl to Idaho Falls Fanning Field

Monday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

See more direct flights

Direct returns

Idaho Falls Fanning Field to Las Vegas Harry Reid Intl

Monday

Allegiant Air

Allegiant Air

Friday

Allegiant Air

Allegiant Air

See more direct flights

Reviews of the top airlines flying from Las Vegas to Idaho Falls

 
See real verified KAYAK customer reviews for airlines flying from Las Vegas to Idaho Falls. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Las Vegas to Idaho Falls? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8005 reviews
8.1Boarding
8.5Crew
7.9Comfort
7.9Entertainment
7.3Food
Airline reviews

Wasn't a Delta issue I don't think, but seems there was a Delta flight at each of the 2 Dallas airports at the same exact time, both to Atlanta. I was evidently booked on the one at Love Airport, but the Carey transport shuttle took me to DFW instead and I ended up missing the flight by just a few minutes. Was able to book a Southwest flight from Love Airport, but was a big loss of time and an inconvenience.

2.0 MediocreWilliam, Dec 2025
DAL - ATL
Read more Delta reviews

Wasn't a Delta issue I don't think, but seems there was a Delta flight at each of the 2 Dallas airports at the same exact time, both to Atlanta. I was evidently booked on the one at Love Airport, but the Carey transport shuttle took me to DFW instead and I ended up missing the flight by just a few minutes. Was able to book a Southwest flight from Love Airport, but was a big loss of time and an inconvenience.

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

Check in on the web portal was cumbersome! After several attempts I finally got the boarding pass.

Excellent flight and even arrived 23 min early. No entertainment , or wi fi on board, but I downloaded a couple of movies beforehand which kept me entertained. Really like flying Allegiant airlines.

WE were delayed about an hour and never any communications from the employees working the gate. We also were moved to a total of three gates.

I love how they show love to their customers and care about them too.

I liked how when I got on board how fast we ended up taking off but what I truly disliked was how uncomfortable the seats were. There was truly never a time that I could ever get comfortable during both of my flights. The seats could get away during shorter flights but flights 3 hour plus makes it hard to enjoy.

The crew was great and the flight was very smooth. Can’t really judge food since I did not get any because it costs money. The seat was comfortable for what we bought. Thanks!

Crew was great. No entertainment and food and beverage was for purchase only, even water

It was canceled. The flight wasn’t rescheduled, everyone had to figure out their own new arrangements. They said we would get refunded our original fare and receive an additional $150. We received links for $100 only and they expired before we could activate them.

The plane had originated in Las Vegas at 6:30 in the morning and flew to Moline where we boarded. The flight left around 12:30 PM and there were no boxed snacks available and many of the alcoholic beverages were unavailable. I would find it hard to believe that that many of the passengers coming from Las Vegas at 6:30 in the morning, drank and ate that much of the items. I can only come to the conclusion that someone failed to stock the plane for the round-trip. This is a huge revenue failure for the airline and disappointment for the passengers. The flight crew did not seem happy to be there and did not engage with passengers. Allegiant you can do better.

Everything you need to know for your flight from Las Vegas to Idaho Falls

Information on your arrival and departure airports