LAS - IDA

$54 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 7/24. 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
$89
Typical prices: $162-$137
Allegiant Air
Fri 7/24Mon 7/27
LAS - IDA • Non-stop
Cheapest one-way
$54
Typical prices: $58-$237
Allegiant Air
Fri 7/24
LAS - IDA • Non-stop
Nonstop flights
Mon, Fri
You can fly direct with Allegiant Air. Average duration is 1h 47m
Direct flights
Direct flights
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Direct flights
Direct flights
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When to travel
Cheapest • 31% price drop
Most popular
Good to know
Good to know
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Good to know
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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, Jul 24 - Mon, Jul 27
Allegiant Air Logo
1:12 pm - 4:00 pm
LAS
-
IDA
1h 48mnonstop
Allegiant Air Logo
10:47 pm - 11:30 pm
IDA
-
LAS
1h 43mnonstop
$89Allegiant Air
Fri, Jul 10 - Mon, Jul 13
Allegiant Air Logo
1:12 pm - 4:00 pm
LAS
-
IDA
1h 48mnonstop
Allegiant Air Logo
10:47 pm - 11:30 pm
IDA
-
LAS
1h 43mnonstop
$93Allegiant Air
Fri, Jun 26 - Mon, Jun 29
Allegiant Air Logo
1:22 pm - 4:08 pm
LAS
-
IDA
1h 46mnonstop
Allegiant Air Logo
10:56 pm - 11:39 pm
IDA
-
LAS
1h 43mnonstop
$105Allegiant Air
Fri, Sep 4 - Mon, Sep 7
Allegiant Air Logo
6:05 am - 8:54 am
LAS
-
IDA
1h 49mnonstop
Allegiant Air Logo
8:36 pm - 9:21 pm
IDA
-
LAS
1h 45mnonstop
$113Allegiant Air
Mon, Jul 6 - Mon, Jul 13
Allegiant Air Logo
1:12 pm - 4:00 pm
LAS
-
IDA
1h 48mnonstop
Allegiant Air Logo
10:47 pm - 11:30 pm
IDA
-
LAS
1h 43mnonstop
$125Allegiant Air
Mon, Jun 22 - Mon, Jun 29
Allegiant Air Logo
1:22 pm - 4:08 pm
LAS
-
IDA
1h 46mnonstop
Allegiant Air Logo
10:56 pm - 11:39 pm
IDA
-
LAS
1h 43mnonstop
$139Allegiant Air
Fri, Jun 19 - Fri, Jun 26
Allegiant Air Logo
1:22 pm - 4:08 pm
LAS
-
IDA
1h 46mnonstop
Allegiant Air Logo
10:56 pm - 11:39 pm
IDA
-
LAS
1h 43mnonstop
$149Allegiant Air
Fri, Jun 19 - Mon, Jun 22
Allegiant Air Logo
1:22 pm - 4:08 pm
LAS
-
IDA
1h 46mnonstop
Allegiant Air Logo
10:56 pm - 11:39 pm
IDA
-
LAS
1h 43mnonstop
$154Allegiant Air
Fri, Jun 19 - Mon, Jun 29
Allegiant Air Logo
1:22 pm - 4:08 pm
LAS
-
IDA
1h 46mnonstop
Allegiant Air Logo
10:56 pm - 11:39 pm
IDA
-
LAS
1h 43mnonstop
$160Allegiant Air
Fri, Jun 19 - Fri, Jun 19
Allegiant Air Logo
1:22 pm - 4:08 pm
LAS
-
IDA
1h 46mnonstop
Allegiant Air Logo
10:56 pm - 11:39 pm
IDA
-
LAS
1h 43mnonstop
$164Allegiant Air
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.

How much is a round-trip flight from Las Vegas to Idaho Falls?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Las Vegas to Idaho Falls departing in July.

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 Thursday 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 March, where the average cost of round-trip tickets is $289 and $197 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 $117, prices are generally cheapest when you fly direct.

Good to know

Low seasonMarch
Cheapest flight$54
Best time to beat the crowds but there is an average 30% increase in price.
Most popular time to fly with an average 1% increase in price.
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 5 days, the lowest price for a flight from Las Vegas to Idaho Falls was $54 for a one-way ticket and $89 for a round-trip.

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

    No

  • Which airlines offer Wi-Fi service onboard planes from Las Vegas to Idaho Falls?

    Only Alaska Airlines offers inflight Wi-Fi service on the Las Vegas to Idaho Falls flight route.

  • 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 $289 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 $115 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 $63 or less one-way and $117 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 8401 reviews
7.8Entertainment
7.8Comfort
8.1Boarding
7.2Food
8.5Crew
Airline reviews

Flight delayed four separate times. I’m now one hour hours late to landing.

2.0 MediocreTravis, Jun 2026
SFO - LAX
Read more Delta reviews

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Should never have had to go to Detroit from Orlando back to Tennessee!

Got rerouted from a straight flight from Orlando to Atlanta to Knoxville to a flight from Orlando to Detroit to Knoxville! Seriously!! Flight delay out of Detroit! Long day for what should have been a pretty easy travel day!

Two delays on two separate planes with parts they could not easily find and replace.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Only beverages were offered to first class and I thought the flight attendant could have also served the Delta Comfort as well instead of sitting down and staring at her phone and walking past all of us to the back of the plane to charge her phone more. There was a complete lack of turbulence and was safe enough for flights attendant to walk around in the front of the plane, collect trash and serve a few people water and turn off the seat belt light. Also didn’t enforce people putting their seats into the upright position and allowed two passengers to remain reclined during landing. They seemed out to lunch completely. Usually my experience on Delta is much better.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Flight was great! This flight from Atlanta was even better than when I paid for Comfort from SNA to Atlanta.

Connection flights should be spaced out farther because too close I missed my connection.

Seats were very uncomfortable and being charged for snacks and water.........

Allegiant actually impressed me, original inbound flight from PBG was so late they gave us a bird inbound from Des Moines and only left 1h late and gained 40 minutes back in the air. Comfortable flight with no frills but no complaints.

Flight was delayed. Crew was good but hot coffee was not available.

Great. No choice for n/a. No food or entertainment options

No food is available without purchasing it and there is no in-flight entertainment. Both of these are OK because we got an inexpensive flight from Allegiant and, otherwise, our experience was excellent.

just had water and there was plenty of leg & seat room. But then i don't weight 220#s!!

Not totally their fault- screaming kids that had zero parent intervention.

It was cold on the flight. The crew was very pleasant. I didn't order any food. We were delayed due to Captain waiting on maintenance log. He kept us informed though. The flight itself was smooth. I would definitely fly with Allegiant again!

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

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

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

Information on your arrival and departure airports