$133 Cheap Flights from Great Falls (GTF) to Las Vegas (LAS)

View $133 flight on Sat, Sep 27, 2025Opens in a new window

Popular airlines from Great Falls, MT (GTF-Great Falls Intl.) to Harry Reid Intl. Airport (LAS)

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Cheap Flights from Great Falls to Las Vegas (GTF-LAS)

Prices were available within the past 7 days and start at $133 for one-way flights and $270 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Sep 4 - Fri, Sep 5
GTF
Great Falls
LAS
Las Vegas
$270 Roundtrip, found 6 hours ago
$270
Roundtrip
found 6 hours ago
Select United flight, departing Thu, Sep 4 from Great Falls to Las Vegas, returning Fri, Sep 5, priced at $270 found 6 hours ago
United
Mon, Nov 10 - Wed, Nov 12
GTF
Great Falls
LAS
Las Vegas
$272 Roundtrip, found 7 hours ago
$272
Roundtrip
found 7 hours ago
Select United flight, departing Mon, Nov 10 from Great Falls to Las Vegas, returning Wed, Nov 12, priced at $272 found 7 hours ago
Hawaiian Airlines
Sat, Aug 30 - Sat, Sep 6
GTF
Great Falls
LAS
Las Vegas
$290 Roundtrip, found 2 days ago
$290
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Sat, Aug 30 from Great Falls to Las Vegas, returning Sat, Sep 6, priced at $290 found 2 days ago
Alaska Airlines
Sun, Sep 14 - Wed, Sep 17
GTF
Great Falls
LAS
Las Vegas
$298 Roundtrip, found 14 hours ago
$298
Roundtrip
found 14 hours ago
Select Alaska Airlines flight, departing Sun, Sep 14 from Great Falls to Las Vegas, returning Wed, Sep 17, priced at $298 found 14 hours ago
Hawaiian Airlines
Wed, Dec 3 - Wed, Dec 17
GTF
Great Falls
LAS
Las Vegas
$300 Roundtrip, found 4 days ago
$300
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 3 from Great Falls to Las Vegas, returning Wed, Dec 17, priced at $300 found 4 days ago
United
Wed, Sep 3 - Sat, Sep 6
GTF
Great Falls
LAS
Las Vegas
$303 Roundtrip, found 1 day ago
$303
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 3 from Great Falls to Las Vegas, returning Sat, Sep 6, priced at $303 found 1 day ago
Hawaiian Airlines
Sat, Nov 22 - Sat, Dec 13
GTF
Great Falls
LAS
Las Vegas
$304 Roundtrip, found 4 days ago
$304
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Sat, Nov 22 from Great Falls to Las Vegas, returning Sat, Dec 13, priced at $304 found 4 days ago
Alaska Airlines
Tue, Oct 14 - Fri, Oct 17
GTF
Great Falls
LAS
Las Vegas
$306 Roundtrip, found 1 day ago
$306
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Oct 14 from Great Falls to Las Vegas, returning Fri, Oct 17, priced at $306 found 1 day ago
United
Mon, Nov 10 - Wed, Nov 12
GTF
Great Falls
LAS
Las Vegas
$307 Roundtrip, found 7 hours ago
$307
Roundtrip
found 7 hours ago
Select United flight, departing Mon, Nov 10 from Great Falls to Las Vegas, returning Wed, Nov 12, priced at $307 found 7 hours ago
Delta
Mon, Nov 10 - Wed, Nov 12
GTF
Great Falls
LAS
Las Vegas
$308 Roundtrip, found 7 hours ago
$308
Roundtrip
found 7 hours ago
Select Delta flight, departing Mon, Nov 10 from Great Falls to Las Vegas, returning Wed, Nov 12, priced at $308 found 7 hours ago

Find the cheapest month to fly from Great Falls (GTF) to Las Vegas (LAS)

January is typically the cheapest month to fly

From $209 - $598 per traveler.

Graph displaying average flight prices per month

Alternative airports near Las Vegas

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to McCarran Intl. LAS. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $473
LAS
McCarran Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $473
Flights from Great Falls (GTF) to Las Vegas (LAS)
Origin airport
Great Falls Intl.
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, Delta, United
Roundtrip price
$269
Distance
811 mi
Average flight time
2 hours 15 mins

Great Falls to Las Vegas Flights

The cheapest times to fly from Great Falls 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 Great Falls to Las Vegas are during the month of September. You can find some of the cheapest flights from Great Falls to Las Vegas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Great Falls to Las Vegas

Sunday is one of the best days to book for cheap flights from Great Falls 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 Great Falls 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 Great Falls to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $133 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 Great Falls 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 Great Falls 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 Great Falls Intl. Airport (GTF) to Harry Reid Intl. Airport (LAS) cost?
Discover the latest flight deals from GTF 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 GTF to LAS?
The cheapest flights from GTF 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 GTF to LAS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from GTF to LAS. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Great Falls Intl. Airport (GTF) to Harry Reid Intl. Airport (LAS)?
On average, you can take your pick of 2 nonstop flights taking off from Great Falls Intl. Airport (GTF) to Harry Reid Intl. Airport (LAS) weekly. If you don't see one that works for your schedule, consider catching a flight that includes a layover. Customize your search results on Expedia to include one or two stops and select the best alternative.
What are the most popular departure times for flights from Great Falls Intl. Airport (GTF) to Harry Reid Intl. Airport (LAS)?
The 6 PM departures from GTF to LAS are the top choice for many travelers. These flights can come with a higher price due to their popularity. If you're looking to save, book during off-peak hours.
What day of the week has the most flights from GTF to LAS?
Friday has the most flights from Great Falls Intl. Airport (GTF) to Harry Reid Intl. Airport (LAS). Consider jetting off on this day and you'll have a greater chance of finding a departure that fits your plans.
What is the earliest flight from Great Falls Intl. Airport (GTF) to Harry Reid Intl. Airport (LAS)?
The earliest flight departing from Great Falls Intl. Airport (GTF) is at around 6:04PM UTC-7. Catch this flight and you'll land at Harry Reid Intl. Airport (LAS) at approximately 7:29PM UTC-8. The total travel time is 2h 25m.
How long does it take to fly from Great Falls Intl. Airport (GTF) to Harry Reid Intl. Airport (LAS)?
Typically, it takes 2 hours and 25 minutes to travel the 810 mi from GTF to LAS.
What is the best time to fly from Great Falls Intl. Airport (GTF) to Harry Reid Intl. Airport (LAS)?
To reach Harry Reid Intl. Airport (LAS) without delays, book a flight that leaves from Great Falls Intl. Airport (GTF) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Great Falls Intl. Airport (GTF)?
Browse your flight options from Great Falls Intl. Airport (GTF) to Harry Reid Intl. Airport (LAS). This is the only Las Vegas airport you can land at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Great Falls Intl. Airport (GTF) to Harry Reid Intl. Airport (LAS) last-minute?
Waiting until just before your trip to book a flight from GTF to LAS often results in higher prices. While you may find some last-minute offers, there's no guarantee. Keep your travel schedule open to maximize your chances of snagging a bargain.
Is it cheaper to book a GTF to LAS flight and hotel package?
Compared with arranging flights and hotels separately, booking a GTF to LAS flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one place will take the stress out of travel planning. Just pick your flights and select from our extensive range of stays, then customize your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Great Falls Intl. Airport (GTF) to Harry Reid Intl. Airport (LAS)?
In most instances, you're able to reschedule or cancel your GTF to LAS flight. However, additional charges may apply, especially if your booking was made more than 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.