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

Flights overview

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

Cheapest round-trip flights	$168	Allegiant Nonstop 2 hr Fri, May 15 — Mon, May 18	The cheapest round-trip flight from Idaho Falls to Las Vegas is currently $168
Cheapest one-way flight	$59	Allegiant Nonstop 2 hr Mon, Apr 20	The cheapest one-way flight from Idaho Falls to Las Vegas is currently $59
Cheapest nonstop flights	$129	Allegiant Nonstop 2 hr Fri, Apr 3 — Mon, Apr 6	The cheapest nonstop round-trip flight from Idaho Falls to Las Vegas is currently $129
Last-minute weekend getaway	$200	Allegiant Nonstop 2 hr Fri, Feb 20 — Mon, Feb 23	The cheapest last-minute weekend getaway from Idaho Falls to Las Vegas is currently $200
Cheapest business class flights	$620	American 1 stop 9 hr Sat, Apr 18 — Mon, Apr 20	The cheapest business class round-trip flight from Idaho Falls to Las Vegas is currently $620

Fastest flight	1 hr 41 min	The fastest nonstop flight from Idaho Falls to Las Vegas takes 1 hr 41 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 Idaho Falls to Las Vegas is typically August. The most expensive month to fly is typically December.

August Cheapest	Typical prices: $175–425
December Most expensive	Typical prices: $230–445

Popular airlines from Idaho Falls to Las Vegas

United

from $321

Typical price: $290–570

254 weekly connecting flights

IDA - LAS Every day
Delta

from $386

Typical price: $295–720

139 weekly connecting flights

IDA - LAS Every day
Alaska

from $284

Typical price: $340–720

135 weekly connecting flights

IDA - LAS Every day
Allegiant

Nonstop

from $129

Typical price: $100–235

2 weekly nonstop flights

IDA - LAS Every Mon, Fri
American

from $395

Typical price: $390–770

63 weekly connecting flights

IDA - LAS Every day

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

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 31 min 201 mi

Frequently asked questions about flying from Idaho Falls to Las Vegas

The cheapest flights from Idaho Falls to Las Vegas are usually in August. Typical ticket prices in August range from $175 to $425.

The cheapest round-trip flight from Idaho Falls to Las Vegas recently found on Google Flights was with Allegiant from $168. The cheapest one-way flight was with Allegiant from $59.

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

The cheapest United flight from Idaho Falls to Las Vegas is $321, flying from Apr 3 to Apr 6.
The cheapest Delta flight from Idaho Falls to Las Vegas is $386, flying from Apr 3 to Apr 5.
The cheapest Alaska flight from Idaho Falls to Las Vegas is $284, flying from Apr 18 to Apr 20.
The cheapest Allegiant flight from Idaho Falls to Las Vegas is $129, flying from Apr 3 to Apr 6.
The cheapest American flight from Idaho Falls to Las Vegas is $395, flying from Apr 4 to Apr 6.

The cheapest round-trip flight from Idaho Falls to Las Vegas starts at $168 from Fri, May 15 to Mon, May 18. The cheapest one-way flight starts at $59 and departs on Mon, Apr 20.

1 hr 41 min is the shortest flight time from Idaho Falls to Las Vegas.

Las Vegas is a busy year-round destination with a subtropical desert climate. There's no specific peak season, but crowds and prices increase around holidays and the many annual conventions. Popular events include the Consumer Electronic Show (Jan), the Project fashion trade show (Feb and Aug), NASCAR Weekend (Mar), the National Finals Rodeo (Dec), and New Year's Eve. During summer (Jun–Aug), extremely high daytime temperatures may make outdoor activities like golf and canyon hiking inadvisable.

It's easy to use Google Flights to find the cheapest days to fly from Idaho Falls to Las Vegas.
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 Idaho Falls to Las Vegas 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 Idaho Falls to Las Vegas.

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

In terms of flights, United is the most popular. United offers 254 connecting flights per week. United flies from Idaho Falls Regional Airport (IDA) to Harry Reid International Airport (LAS) .

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

Delta offers 139 connecting flights per week. Delta flies from Idaho Falls Regional Airport (IDA) to Harry Reid International Airport (LAS) .
Alaska offers 135 connecting flights per week. Alaska flies from Idaho Falls Regional Airport (IDA) to Harry Reid International Airport (LAS) .
American offers 63 connecting flights per week. American flies from Idaho Falls Regional Airport (IDA) to Harry Reid International Airport (LAS) .

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

The cheapest round-trip flight from Idaho Falls to Las Vegas recently found on Google Flights was with Allegiant from $168. The cheapest one-way flight was with Allegiant from $59.

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

The cheapest United flight from Idaho Falls to Las Vegas is $321, flying from Apr 3 to Apr 6.
The cheapest Delta flight from Idaho Falls to Las Vegas is $386, flying from Apr 3 to Apr 5.
The cheapest Alaska flight from Idaho Falls to Las Vegas is $284, flying from Apr 18 to Apr 20.
The cheapest Allegiant flight from Idaho Falls to Las Vegas is $129, flying from Apr 3 to Apr 6.
The cheapest American flight from Idaho Falls to Las Vegas is $395, flying from Apr 4 to Apr 6.

Allegiant flies direct from Idaho Falls to Las Vegas.

There are 2 Allegiant direct flights from Idaho Falls to Las Vegas 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 Idaho Falls and Las Vegas at price $200 is offered by Allegiant from Fri, Feb 20 to Mon, Feb 23.

Allegiant flies direct from Idaho Falls to Las Vegas.

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

The cheapest direct (nonstop) round-trip flights between Idaho Falls and Las Vegas start at $129 from Fri, Apr 3 to Mon, Apr 6 with Allegiant.

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Idaho Falls to Las Vegas, 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 Idaho Falls and Las Vegas start at $620 from Sat, Apr 18 to Mon, Apr 20 with American.

The cheapest economy class round-trip flights between Idaho Falls and Las Vegas start at $168 from Fri, May 15 to Mon, May 18.

To book business class trips from Idaho Falls to Las Vegas, 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 Idaho Falls and Las Vegas starts at $200 from Fri, Feb 20 to Mon, Feb 23 with Allegiant.

The cheapest last-minute deal between Idaho Falls and Las Vegas at price $200 is offered by Allegiant from Fri, Feb 20 to Mon, Feb 23.

To find last-minute flight deals from Idaho Falls to Las Vegas, 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.