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

Flights overview

Useful information for finding cheap flights from Las Vegas to Idaho Falls and booking your next trip

Cheapest round-trip flights	$98	Allegiant Nonstop 2 hr Fri, May 1 — Mon, May 4	The cheapest round-trip flight from Las Vegas to Idaho Falls is currently $98
Cheapest one-way flight	$77	Allegiant Nonstop 2 hr Fri, Mar 20	The cheapest one-way flight from Las Vegas to Idaho Falls is currently $77
Last-minute weekend getaway	$149	Allegiant Nonstop 2 hr Fri, Feb 13 — Mon, Feb 16	The cheapest last-minute weekend getaway from Las Vegas to Idaho Falls is currently $149
Cheapest business class flights	$599	American 1 stop 7 hr Fri, Apr 3 — Sun, Apr 5	The cheapest business class round-trip flight from Las Vegas to Idaho Falls is currently $599

Fastest flight	1 hr 45 min	The fastest nonstop flight from Las Vegas to Idaho Falls takes 1 hr 45 min
Nonstop flights	Some days	There are direct flights on this route 2 days a week: Mon, Fri.

When is the cheapest time to fly?

The cheapest month to fly from Las Vegas to Idaho Falls is typically December. The most expensive month to fly is typically March.

December Cheapest	Typical prices: $100–340
March Most expensive	Typical prices: $195–385

Popular airlines from Las Vegas to Idaho Falls

United

from $269

Typical price: $290–560

217 weekly connecting flights

LAS - IDA Every day
Alaska

from $317

Typical price: $345–700

137 weekly connecting flights

LAS - IDA Every day
Delta

from $415

Typical price: $305–690

101 weekly connecting flights

LAS - IDA Every day
Allegiant

Nonstop

from $98

Typical price: $100–215

2 weekly nonstop flights

LAS - IDA Every Mon, Fri
American

from $374

Typical price: $395–750

68 weekly connecting flights

LAS - IDA Every day

Popular airports near Las Vegas

Harry Reid International Airport (LAS)

Las Vegas United States 16 min 6 mi
St. George Regional Airport (SGU) (SGU)

St. George United States 1 hr 52 min 108 mi
Boulder City Municipal Airport (BLD)

Boulder City United States 26 min 22 mi
Ontario International Airport (ONT)

Ontario United States 3 hr 32 min 201 mi

Popular airports near Idaho Falls

Idaho Falls Regional Airport (IDA)

Idaho Falls United States 8 min 2 mi
Salt Lake City International Airport (SLC)

Salt Lake City United States 3 hr 3 min 186 mi
Jackson Hole Airport (JAC)

Jackson United States 2 hr 2 min 65 mi
Friedman Memorial Airport (SUN) (SUN)

Sun Valley United States 2 hr 17 min 112 mi

Frequently asked questions about flying from Las Vegas to Idaho Falls

The cheapest flights from Las Vegas to Idaho Falls are usually in December. Typical ticket prices in December range from $100 to $340.

The cheapest round-trip flight from Las Vegas to Idaho Falls recently found on Google Flights was with Allegiant from $98. The cheapest one-way flight was with Allegiant from $77.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest United flight from Las Vegas to Idaho Falls is $269, flying from Apr 2 to Apr 5.
The cheapest Alaska flight from Las Vegas to Idaho Falls is $317, flying from May 7 to May 10.
The cheapest Delta flight from Las Vegas to Idaho Falls is $415, flying from Apr 2 to Apr 5.
The cheapest Allegiant flight from Las Vegas to Idaho Falls is $98, flying from May 1 to May 4.
The cheapest American flight from Las Vegas to Idaho Falls is $374, flying from Apr 4 to Apr 5.

The cheapest round-trip flight from Las Vegas to Idaho Falls starts at $98 from Fri, May 1 to Mon, May 4. The cheapest one-way flight starts at $77 and departs on Fri, Mar 20.

1 hr 45 min is the shortest flight time from Las Vegas to Idaho Falls.

A popular time to visit is May–Sep, when days tend to be sunny and warm. Temperatures dip below freezing in winter (Dec–Feb). Idaho Falls Zoo is open Apr–mid Oct.

It's easy to use Google Flights to find the cheapest days to fly from Las Vegas to Idaho Falls.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What counts as the best airline for your flights from Las Vegas to Idaho Falls really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Las Vegas to Idaho Falls.

In terms of nonstop flights, Allegiant is the most popular. Allegiant offers 2 nonstop flights per week. Allegiant flies from Harry Reid International Airport (LAS) to Idaho Falls Regional Airport (IDA) .

In terms of flights, United is the most popular. United offers 217 connecting flights per week. United flies from Harry Reid International Airport (LAS) to Idaho Falls Regional Airport (IDA) .

Other popular airlines flying from Las Vegas to Idaho Falls are:

Alaska offers 137 connecting flights per week. Alaska flies from Harry Reid International Airport (LAS) to Idaho Falls Regional Airport (IDA) .
Delta offers 101 connecting flights per week. Delta flies from Harry Reid International Airport (LAS) to Idaho Falls Regional Airport (IDA) .
American offers 68 connecting flights per week. American flies from Harry Reid International Airport (LAS) to Idaho Falls Regional Airport (IDA) .

The number of connecting flights refers to distinct flights with at least one stop between Las Vegas and Idaho Falls.

The cheapest round-trip flight from Las Vegas to Idaho Falls recently found on Google Flights was with Allegiant from $98. The cheapest one-way flight was with Allegiant from $77.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest United flight from Las Vegas to Idaho Falls is $269, flying from Apr 2 to Apr 5.
The cheapest Alaska flight from Las Vegas to Idaho Falls is $317, flying from May 7 to May 10.
The cheapest Delta flight from Las Vegas to Idaho Falls is $415, flying from Apr 2 to Apr 5.
The cheapest Allegiant flight from Las Vegas to Idaho Falls is $98, flying from May 1 to May 4.
The cheapest American flight from Las Vegas to Idaho Falls is $374, flying from Apr 4 to Apr 5.

Allegiant flies direct from Las Vegas to Idaho Falls.

There are 2 Allegiant direct flights from Las Vegas to Idaho Falls per week. Flights are available on Monday and Friday.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

The cheapest last-minute deal between Las Vegas and Idaho Falls at price $149 is offered by Allegiant from Fri, Feb 13 to Mon, Feb 16.

Allegiant flies direct from Las Vegas to Idaho Falls.

There are 2 Allegiant direct flights from Las Vegas to Idaho Falls per week. Flights are available on Monday and Friday.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

Direct flights from Las Vegas to Idaho Falls are only available on Monday and Friday.

The cheapest direct (nonstop) round-trip flights between Las Vegas and Idaho Falls start at $98 from Fri, May 1 to Mon, May 4 with Allegiant.

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Las Vegas to Idaho Falls, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

The cheapest business class round-trip flights between Las Vegas and Idaho Falls start at $599 from Fri, Apr 3 to Sun, Apr 5 with American.

The cheapest economy class round-trip flights between Las Vegas and Idaho Falls start at $98 from Fri, May 1 to Mon, May 4.

To book business class trips from Las Vegas to Idaho Falls, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

The best last-minute getaway deal for the next weekend between Las Vegas and Idaho Falls starts at $149 from Fri, Feb 13 to Mon, Feb 16 with Allegiant.

The cheapest last-minute deal between Las Vegas and Idaho Falls at price $149 is offered by Allegiant from Fri, Feb 13 to Mon, Feb 16.

To find last-minute flight deals from Las Vegas to Idaho Falls, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.