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Cheap flights from Great Falls to Las Vegas from C$ 189

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — LAS
14 Jan — 21 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Great Falls to Las Vegas

Enter your travel dates to find the best prices.

Cheapest flights from Great Falls to Las Vegas
Explore the most affordable flight options available from Great Falls to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 December 2025.

Wed 31/122:35 p.m.GTF - LAS
1 stop6h 47mUnited Airlines
Thu 1/15:30 a.m.LAS - GTF
1 stop7h 09mUnited Airlines
Deal found 14/12C$ 744
Sun 28/122:35 p.m.GTF - LAS
1 stop6h 47mUnited Airlines
Thu 1/15:30 a.m.LAS - GTF
1 stop7h 09mUnited Airlines
Deal found 13/12C$ 877
Thu 25/122:35 p.m.GTF - LAS
1 stop6h 47mUnited Airlines
Sat 27/124:23 p.m.LAS - GTF
1 stop5h 23mUnited Airlines
Deal found 13/12C$ 894
Thu 25/122:35 p.m.GTF - LAS
1 stop6h 47mUnited Airlines
Sun 28/125:30 a.m.LAS - GTF
1 stop7h 09mUnited Airlines
Deal found 13/12C$ 1,018
Fri 19/126:15 a.m.GTF - LAS
1 stop7h 14mUnited Airlines
Sun 21/124:23 p.m.LAS - GTF
1 stop5h 23mUnited Airlines
Deal found 14/12C$ 1,020
Thu 25/122:35 p.m.GTF - LAS
2 stops20h 06mUnited Airlines
Mon 29/125:30 a.m.LAS - GTF
1 stop7h 09mUnited Airlines
Deal found 13/12C$ 1,026
Tue 23/126:15 a.m.GTF - LAS
2 stops12h 32mUnited Airlines
Mon 29/122:15 p.m.LAS - GTF
2 stops22h 24mUnited Airlines
Deal found 14/12C$ 1,080

Find flight deals from Great Falls to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Great Falls (GTF) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 15 December 2025.

Round-trip from

C$ 341

One-way from

C$ 189

Popular in

December

Cheapest in

August

Average price

C$ 420
Alaska Airlines
  • Alaska Airlines
  • 9/2-14/2
  • 2 total stops
  • 12h 59m total
  • Great Falls to Las Vegas
Search Deals
Delta
  • Delta
  • 28/1
  • 2 total stops
  • 10h 23m total
  • Great Falls to Las Vegas
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Great Falls to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 15 December 2025.
Use the filters below to find and compare flights from Great Falls to Las Vegas that are best for you.

Fly from

Great Falls

Fly to

Las Vegas

Route

Depart

Return

Price

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 9/2

5:59 p.m.-11:12 p.m.

1 stop6h 13m

Las Vegas Harry Reid Intl

Sat 14/2

10:02 a.m.-5:48 p.m.

1 stop6h 46m

C$ 341

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Sat 28/2

6:28 p.m.-10:56 p.m.

1 stop5h 28m

Las Vegas Harry Reid Intl

Sat 7/3

7:00 a.m.-5:48 p.m.

1 stop9h 48m

C$ 372

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 12/1

5:59 p.m.-11:12 p.m.

1 stop6h 13m

Las Vegas Harry Reid Intl

Thu 15/1

7:36 p.m.-5:19 p.m.

1 stop20h 43m

C$ 412

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Wed 4/2

5:59 p.m.-6:41 p.m.

2 stops25h 42m

Las Vegas Harry Reid Intl

Fri 6/2

8:00 a.m.-5:19 p.m.

1 stop8h 19m

C$ 435

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Sat 28/2

6:28 p.m.-11:16 p.m.

2 stops29h 48m

Las Vegas Harry Reid Intl

Fri 6/3

3:27 p.m.-5:48 p.m.

2 stops25h 21m

C$ 459

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Wed 14/1

5:59 p.m.-10:06 a.m.

2 stops17h 07m

Las Vegas Harry Reid Intl

Sun 18/1

8:00 a.m.-5:19 p.m.

1 stop8h 19m

C$ 463

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Wed 28/1

1:12 p.m.-10:35 p.m.

2 stops10h 23m

C$ 189

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Wed 28/1

2:29 p.m.-8:32 p.m.

1 stop7h 03m

C$ 219

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Fri 22/5

6:20 p.m.-12:28 a.m.

1 stop7h 08m

C$ 307

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Fri 15/5

5:09 p.m.-7:54 p.m.

2 stops27h 45m

C$ 328

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/12

Showing 1-10 of 16 results
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Best time to book a flight from Great Falls to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Great Falls with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Great Falls to Las Vegas

How far ahead should I book a flight from Great Falls to Las Vegas?

Use this chart to determine the optimal time to book a round-trip flight from Great Falls to Las Vegas. Price data was last updated on 12 December 2025.

The price you pay for your flight from Great Falls to Las Vegas may vary depending on when you book. For the best chance of a lower fare, look to book 17 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Great Falls to Las Vegas?

Currently, September is the cheapest month in which you can book a flight from Great Falls to Las Vegas (average of C$ 59). Flying from Great Falls to Las Vegas in December is currently the most expensive (average of C$ 196). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GTF to LAS?

Find hourly flight availability from Great Falls to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 December 2025.

It’s typically best to fly out from Great Falls to Las Vegas in the evening. Doing so could potentially save you 32% on the flight price compared to flying in the afternoon, which is usually more expensive.

How much does it cost to fly round-trip from Great Falls to Las Vegas?

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Las Vegas. Reviews last updated 15 December 2025.
Get a feel of what it's like to fly with Allegiant Air from Great Falls to Las Vegas by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Allegiant Air
7.2
Good
700 reviews
Check prices

Boarding

7.6

Crew

8.1

Entertainment

5.5

Comfort

6.8

Overall

7.2

Food

5.9

Reviews

1 / 20
4.0
Okay

Sara,Nov 2025

PSC - AZA

We were delayed and then couldn’t get off due to lightening.
Allegiant Air
7.2
Good
700 reviews
Allegiant Air
7.2
Good
700 reviews
Check prices

Boarding

7.6

Crew

8.1

Entertainment

5.5

Comfort

6.8

Overall

7.2

Food

5.9

Reviews

1 / 20
4.0
Okay

Sara,Nov 2025

PSC - AZA

We were delayed and then couldn’t get off due to lightening.

Related info for your journey

Find useful and relevant information for your journey from Great Falls to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Great Falls to Las Vegas flight route?

    The Great Falls to Las Vegas Harry Reid Intl flight path was viewed by 21 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Great Falls to Las Vegas?

    A quick flight from Great Falls to Las Vegas can take about 6h 13m. Alaska Airlines provides one of the quickest options available for as low as C$ 341. Airlines will cover a distance of 1304 km.

  • What is the cheapest airline to fly from Great Falls to Las Vegas round-trip?

    Flying on Allegiant Air is currently your cheapest option to Las Vegas, with prices starting at C$ 113. This flight start at 58% lower than the current average price 3 months from now.

  • Can I find deals for flights from Great Falls to Las Vegas that include hotel bookings?

    Yes. In addition to deals on Great Falls to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Great Falls to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Great Falls to Las Vegas.

  • Can I find deals for business class flights from Great Falls to Las Vegas?

    Yes. Cheapflights offers flight deals from Great Falls to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Great Falls to Las Vegas?

    Currently, September is the cheapest month in which you can book a flight from Great Falls to Las Vegas (average of C$ 59). Flying from Great Falls to Las Vegas in December is currently the most expensive (average of C$ 196). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Henderson
Boulder City
North Las Vegas
Paradise

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Top airline flying from Great Falls to Las Vegas

Discover the top airline that operate flights from Great Falls to Las Vegas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 15 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapestC$ 113AverageC$ 231FlexibilityNo cancel feeOn-time88%
Search Allegiant Air flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Great Falls to Las Vegas?

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Why should you use Cheapflights to find cheap flight tickets from Great Falls to Las Vegas?

Millions of users choose and trust Cheapflights to book the best flight deals from Great Falls to Las Vegas for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Great Falls to Las Vegas with no change fees?

Need flexible booking options for your flight to Las Vegas from Great Falls? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Great Falls to Las Vegas become cheaper?

Of course! You can now track prices for flights from Great Falls to Las Vegas and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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