$109 Cheap Flights from Missoula (MSO) to Las Vegas (LAS)

View $109 flight on Wed, May 21, 2025Opens in a new window

Popular airlines from Missoula Intl. Airport (MSO) to Harry Reid Intl. Airport (LAS)

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Find available prices by choosing your travel dates.

Cheap Flights from Missoula to Las Vegas (MSO-LAS)

Prices were available within the past 7 days and start at $109 for one-way flights and $218 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, May 28 - Tue, Jun 3
MSO
Missoula
LAS
Las Vegas
$218 Roundtrip, found 13 hours ago
$218
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Wed, May 28 from Missoula to Las Vegas, returning Tue, Jun 3, priced at $218 found 13 hours ago
Delta
Tue, May 27 - Tue, May 27
MSO
Missoula
LAS
Las Vegas
$219 Roundtrip, found 13 hours ago
$219
Roundtrip
found 13 hours ago
Select Delta flight, departing Tue, May 27 from Missoula to Las Vegas, returning Tue, May 27, priced at $219 found 13 hours ago
Frontier Airlines
Fri, May 30 - Tue, Jun 3
MSO
Missoula
LAS
Las Vegas
$219 Roundtrip, found 11 hours ago
$219
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Fri, May 30 from Missoula to Las Vegas, returning Tue, Jun 3, priced at $219 found 11 hours ago
Frontier Airlines
Fri, May 30 - Tue, Jun 3
MSO
Missoula
LAS
Las Vegas
$233 Roundtrip, found 11 hours ago
$233
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Fri, May 30 from Missoula to Las Vegas, returning Tue, Jun 3, priced at $233 found 11 hours ago
Alaska Airlines
Wed, Jun 4 - Tue, Jun 10
MSO
Missoula
LAS
Las Vegas
$238 Roundtrip, found 1 day ago
$238
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Jun 4 from Missoula to Las Vegas, returning Tue, Jun 10, priced at $238 found 1 day ago
Alaska Airlines
Tue, May 27 - Fri, May 30
MSO
Missoula
LAS
Las Vegas
$239 Roundtrip, found 1 day ago
$239
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, May 27 from Missoula to Las Vegas, returning Fri, May 30, priced at $239 found 1 day ago
Bargain Flight
Wed, May 21 - Sat, May 24
MSO
Missoula
LAS
Las Vegas
$241 Roundtrip, just found
$241
Roundtrip
just found
Select Bargain Flight flight, departing Wed, May 21 from Missoula to Las Vegas, returning Sat, May 24, priced at $241 just found
United
Fri, May 30 - Tue, Jun 3
MSO
Missoula
LAS
Las Vegas
$242 Roundtrip, found 11 hours ago
$242
Roundtrip
found 11 hours ago
Select United flight, departing Fri, May 30 from Missoula to Las Vegas, returning Tue, Jun 3, priced at $242 found 11 hours ago
Delta
Wed, May 21 - Sat, May 24
MSO
Missoula
LAS
Las Vegas
$243 Roundtrip, just found
$243
Roundtrip
just found
Select Delta flight, departing Wed, May 21 from Missoula to Las Vegas, returning Sat, May 24, priced at $243 just found
Delta
Wed, May 21 - Sat, May 24
MSO
Missoula
LAS
Las Vegas
$245 Roundtrip, just found
$245
Roundtrip
just found
Select Delta flight, departing Wed, May 21 from Missoula to Las Vegas, returning Sat, May 24, priced at $245 just found
Flights from Missoula (MSO) to Las Vegas (LAS)
Origin airport
Missoula Intl.
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, United
Roundtrip price
$218
Distance
750 mi

Missoula to Las Vegas Flights

The cheapest times to fly from Missoula to Las Vegas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Missoula to Las Vegas are during the month of May. You can find some of the cheapest flights from Missoula to Las Vegas with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Missoula to Las Vegas

Sunday is one of the best days to book for cheap flights from Missoula to Las Vegas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Missoula to Las Vegas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Missoula to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $109 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Missoula to Las Vegas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Missoula to Las Vegas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Missoula Intl. Airport (MSO) to Harry Reid Intl. Airport (LAS) cost?
Discover the latest flight deals from MSO to LAS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from MSO to LAS?
The cheapest flights from MSO to LAS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from MSO to LAS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from MSO to LAS. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Missoula Intl. Airport (MSO) to Harry Reid Intl. Airport (LAS)?
On average, you can take your pick of 2 nonstop flights departing from Missoula Intl. Airport (MSO) to Harry Reid Intl. Airport (LAS) weekly. If you can’t find one that fits your travel plans, think about booking a flight that includes a layover. Customize your search on Expedia to include one or more stops and opt for the best alternative.
What are the most popular departure times for flights from Missoula Intl. Airport (MSO) to Harry Reid Intl. Airport (LAS)?
Flights between MSO and LAS are their busiest at 5 PM. If you want a more relaxed experience and potentially cheaper fares, look for a departure that’s outside typical rush times.
What day of the week has the most flights from MSO to LAS?
Travel on a Friday if you’re looking for the biggest selection of flights from Missoula Intl. Airport (MSO) to Harry Reid Intl. Airport (LAS).
What is the earliest flight from Missoula Intl. Airport (MSO) to Harry Reid Intl. Airport (LAS)?
Take the earliest flight at around 5:36PM UTC-7, departing from Missoula Intl. Airport (MSO). You’ll be flying for about 2h 20m, arriving at Harry Reid Intl. Airport (LAS) at approximately 6:56PM UTC-8.
How long does it take to fly from Missoula Intl. Airport (MSO) to Harry Reid Intl. Airport (LAS)?
Typically, it takes 2 hours and 20 minutes to cover the 750 mi from MSO to LAS.
What is the best time to fly from Missoula Intl. Airport (MSO) to Harry Reid Intl. Airport (LAS)?
Book a flight from Missoula Intl. Airport (MSO) to Harry Reid Intl. Airport (LAS) that leaves before 3 PM to reduce the likelihood of delays. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Las Vegas from Missoula Intl. Airport (MSO)?
If you’re flying on a direct flight from Missoula Intl. Airport (MSO) to Las Vegas, Harry Reid Intl. Airport (LAS) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Missoula Intl. Airport (MSO) to Harry Reid Intl. Airport (LAS) last-minute?
Waiting until just before your departure to book a ticket from MSO to LAS generally means paying more. While you might find some last-minute offers, they aren’t always guaranteed. Keep your travel plans flexible for the best chance of snagging a bargain.
Is it cheaper to book a MSO to LAS flight and hotel package?
Opting for a MSO to LAS flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Select from our extensive range of hotels and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Missoula Intl. Airport (MSO) to Harry Reid Intl. Airport (LAS)?
In most cases, you can cancel or reschedule your MSO to LAS flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline’s fees and policies on flight changes, or if you need more information, visit our Customer Service portal.

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*Available to One Key members.