$75 Find Cheap Flights from Las Vegas to Idaho Falls - Compare and Save

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.

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.

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.

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.

Only Allegiant Air operates flights between Las Vegas and Idaho Falls.

Flights from Las Vegas to Idaho Falls usually depart from Las Vegas Harry Reid Intl (LAS) and arrive at Idaho Falls Fanning Field (IDA).

Only Economy Class is available on flights from Las Vegas to Idaho Falls.

On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $117 round-trip, compared to $334 via a layover through Portland (PDX).

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $25–$50 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Airbus A319 family is used most often on this route, operated mainly by Allegiant Air. Other aircraft seen on the route include Airbus A320-100/200 variants.

One-stop flights from Las Vegas to Idaho Falls most commonly connect through:

• Denver Intl (DEN) - 47% of one-stop connections
• Salt Lake City (SLC) - 40% of one-stop connections
• Portland (PDX) - 13% of one-stop connections

Denver Intl (DEN) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 71% on the Las Vegas to Idaho Falls route. Friday is the cheapest departure day at $114 round-trip on average, while Thursday is the most expensive at $381, a difference of $267. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

These are the earliest and latest flight times available from Las Vegas to Idaho Falls:

• Earliest: departs at 8:45 am and lands at 10:34 am
• Latest: departs at 3:30 pm and lands at 5:19 pm.

The flight takes about 1h 49m.

A nonstop flight from Las Vegas to Idaho Falls takes 1h 49m, covering 538 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

One-way fares from Las Vegas to Idaho Falls are currently lower than usual. Average one-way flight prices are about $127, which is 26% below the typical average for this route.

Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 4h 51m, compared with 5h 29m via Denver Intl (DEN) and 5h 32m via Portland (PDX).

Idaho Falls is 1 hour ahead of Las Vegas (Mountain Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Idaho Falls Fanning Field Airport (IDA) hosts 5 major car rental companies, with daily rates starting from around $34 for economy cars. Top options include:
• Alamo
• Hertz
• Enterprise Rent-A-Car
• Budget
• National

Round-trip flights from Las Vegas to Idaho Falls range from $110 to $238, with an average of $151 over the past 12 months. Anything below $110 counts as a good deal.