LAS - IDA

$53 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 4/10. 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
$114
Overall average: $154
Allegiant Air
Fri 4/10Mon 4/13
LAS - IDA • Non-stop
Cheapest one-way
$53
Typical prices: $100-$297
Allegiant Air
Fri 4/10
LAS - IDA • Non-stop
Nonstop flights
Mon, Fri
You can fly direct with Allegiant Air. Average duration is 1h 45m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from $114 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Top layover airports
Cheapest • Avg $330 (round-trip)
Shortest trip • 4h 06m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 34% price drop
Most popular
Good to know
Good to know
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Good to know
Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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, Apr 10 - Mon, Apr 13
Allegiant Air Logo
12:42 pm - 3:27 pm
LAS
-
IDA
1h 45mnonstop
Allegiant Air Logo
10:21 pm - 11:02 pm
IDA
-
LAS
1h 41mnonstop
$114Allegiant Air
Fri, May 22 - Fri, Jun 5
Allegiant Air Logo
10:15 am - 1:00 pm
LAS
-
IDA
1h 45mnonstop
Allegiant Air Logo
10:56 pm - 11:39 pm
IDA
-
LAS
1h 43mnonstop
$131Allegiant Air
Fri, May 1 - Mon, May 4
Multiple Airlines Logo
3:00 pm - 9:31 pm
LAS
-
IDA
5h 31m
1 stop
Multiple Airlines Logo
10:21 pm - 11:02 pm
IDA
-
LAS
1h 41mnonstop
$161Multiple Airlines
Mon, Mar 30 - Fri, Apr 3
Allegiant Air Logo
12:28 pm - 3:14 pm
LAS
-
IDA
1h 46mnonstop
Allegiant Air Logo
10:06 pm - 10:47 pm
IDA
-
LAS
1h 41mnonstop
$174Allegiant Air
Fri, Apr 17 - Mon, Apr 20
Multiple Airlines Logo
12:42 pm - 3:27 pm
LAS
-
IDA
1h 45mnonstop
Multiple Airlines Logo
4:17 pm - 7:50 am
IDA
-
LAS
16h 33m
1 stop
$186Multiple Airlines
Fri, Apr 10 - Fri, Apr 17
Multiple Airlines Logo
3:00 pm - 9:31 pm
LAS
-
IDA
5h 31m
1 stop
Multiple Airlines Logo
10:21 pm - 11:02 pm
IDA
-
LAS
1h 41mnonstop
$191Multiple Airlines
Fri, May 22 - Fri, Jun 5
Multiple Airlines Logo
10:15 am - 1:00 pm
LAS
-
IDA
1h 45mnonstop
Multiple Airlines Logo
4:58 pm - 8:45 am
IDA
-
LAS
16h 47m
1 stop
$207Multiple Airlines
Fri, Apr 10 - Fri, Apr 17
Multiple Airlines Logo
12:42 pm - 3:27 pm
LAS
-
IDA
1h 45mnonstop
Multiple Airlines Logo
4:17 pm - 8:11 pm
IDA
-
LAS
28h 54m
2 stops
$236Multiple Airlines
Thu, Jun 18 - Mon, Jun 22
Multiple Airlines Logo
6:41 pm - 5:49 pm
LAS
-
IDA
22h 08m
1 stop
Multiple Airlines Logo
10:56 pm - 11:39 pm
IDA
-
LAS
1h 43mnonstop
$249Multiple Airlines
Fri, Apr 17 - Mon, Apr 20
Multiple Airlines Logo
12:42 pm - 3:27 pm
LAS
-
IDA
1h 45mnonstop
Multiple Airlines Logo
4:17 pm - 9:30 am
IDA
-
LAS
42h 13m
2 stops
$259Multiple 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 Wednesday and avoid Mondays 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 May, where the average cost of round-trip tickets is $289 and $211 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 $197, prices are generally cheapest when you fly direct.

Good to know

Low seasonMarch
Cheapest flight$53
Best time to beat the crowds but there is an average 25% increase in price.
Most popular time to fly and prices are also 6% 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 $53 for a one-way ticket and $114 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 $112 and an overall rating of 7.3.

  • 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 $55 or less one-way.
  • 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 8288 reviews
7.9Comfort
8.5Crew
7.8Entertainment
8.1Boarding
7.2Food
Airline reviews

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

10.0 ExcellentDebra, Mar 2026
PBI - ATL
Read more Delta reviews

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

There is not one likable thing about this airline. It’s starts with the deceptive pricing and continues through the whole flight. The worst staff I’ve ever experienced way over priced bags absolutely no food or drink (unacceptable and you should be embarrassed) the seats are cramped and uncomfortable there is no entertainment there is nothing about this trash airline that constitutes any amount of money. It’s worse than spirit and way more expensive it is disgraceful. Do not travel with Allegiant I repeat do not bother no matter what they say the price is it is never ever going to be the right choice I’m mind blown at how awful the entire experience was I’m embarrassed that I chose so poorly I cannot reiterate enough how beyond horrible this company and its staff are, not one person on this flight or at the airport is qualified to sweep up trash on a city sidewalk they should certainly never be given any job that requires a brain or manners or communication with human beings, what a disgrace to the human race. Your criminal chiselers and should be put out to pasture

Great flight. Friendly staff. Free snacks and drinks would be nice. I would love fewer taxes and fees added on.

My 90 year old father flew with me. He needed wheel chair assistance and is nearly deaf. The staff was amazing with him.

It was fine. Nobody was outstandingly friendly but no one was rude and everything was smooth . The captain thanked us for flying but no one greeted me as I walked on the plane or as I exited which is the least they could do lol

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.

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

Information on your arrival and departure airports