Find flights
When to book
Airlines
FAQs

Cheap flights from Great Falls to Las Vegas from C$ 329

GTF — LAS
12 Dec — 19 Dec1
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

Tue 8/121:19 p.m. -
2 stops10h 26m
Fri 11/126:30 a.m. -
2 stops10h 09m
Deal found 10/11C$ 417
Tue 8/121:19 p.m. -
2 stops10h 26m
Sat 12/126:30 a.m. -
2 stops10h 09m
Deal found 10/11C$ 467
Fri 11/126:19 p.m. -
2 stops25h 46m
Wed 16/126:30 a.m. -
2 stops10h 09m
Deal found 10/11C$ 474
Sat 12/124:51 p.m. -
1 stop27h 25m
Tue 15/126:49 p.m. -
1 stop20h 22m
Deal found 10/11C$ 501
Tue 8/121:19 p.m. -
2 stops10h 26m
Thu 10/121:55 p.m. -
2 stops7h 34m
Deal found 10/11C$ 545
Wed 9/126:19 p.m. -
2 stops25h 46m
Fri 11/126:30 a.m. -
2 stops10h 09m
Deal found 10/11C$ 552
Sun 13/121:19 p.m. -
2 stops10h 26m
Wed 16/126:30 a.m. -
2 stops10h 09m
Deal found 9/11C$ 573
Fri 11/124:51 p.m. -
1 stop5h 42m
Wed 16/128:30 a.m. -
1 stop6h 41m
Deal found 10/11C$ 579
Fri 11/124:51 p.m. -
2 stops16h 47m
Tue 15/127:00 a.m. -
1 stop8h 11m
Deal found 10/11C$ 592

Find flight deals from Great Falls to Las Vegas

Round-trip from

C$ 417

One-way from

C$ 329

Popular in

October

Cheapest in

June

Average price

C$ 623
Delta
  • Delta
  • 13/12-16/12
  • 4 total stops
  • 28h 19m total
  • Great Falls to Las Vegas
Search Deals
United Airlines
  • United Airlines
  • 2/2-31/12
  • 1 total stop
  • 5h 19m total
  • Great Falls to Las Vegas
Search Deals
Highest demand for flights based on searches. 38% potential increase in price (C$ 407 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (C$ 60 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Great Falls to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Tue 2/2

6:25 a.m.-10:44 a.m.

1 stop5h 19m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 329
Quickest round-trip

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Mon 28/12

1:19 p.m.-4:20 p.m.

1 stop4h 01m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 343

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Tue 2/2

1:22 p.m.-10:44 p.m.

2 stops10h 22m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 351

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Mon 28/12

2:37 p.m.-8:42 p.m.

1 stop7h 05m

Las Vegas Harry Reid Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 448

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Tue 15/12

5:35 a.m.-1:12 p.m.

2 stops8h 37m

Las Vegas Harry Reid Intl

Fri 18/12

10:24 a.m.-5:39 p.m.

1 stop6h 15m

C$ 538

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Thu 3/12

6:19 p.m.-11:53 p.m.

1 stop6h 34m

Las Vegas Harry Reid Intl

Thu 10/12

6:30 a.m.-5:39 p.m.

2 stops10h 09m

C$ 630

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Fri 7/5

4:55 p.m.-11:31 p.m.

1 stop7h 36m

Las Vegas Harry Reid Intl

Mon 10/5

7:00 a.m.-4:13 p.m.

1 stop8h 13m

C$ 657

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Thu 3/12

2:47 p.m.-8:55 p.m.

1 stop7h 08m

Las Vegas Harry Reid Intl

Thu 10/12

5:15 a.m.-1:49 p.m.

1 stop7h 34m

C$ 657

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Sun 31/1

4:08 p.m.-10:19 p.m.

1 stop7h 11m

Las Vegas Harry Reid Intl

Fri 5/2

5:24 p.m.-3:28 p.m.

1 stop21h 04m

C$ 657

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Thu 3/12

2:47 p.m.-8:55 p.m.

1 stop7h 08m

Las Vegas Harry Reid Intl

Tue 8/12

1:39 p.m.-9:13 p.m.

1 stop6h 34m

C$ 657

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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

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?

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 77 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, June is the cheapest month in which you can book a flight from Great Falls to Las Vegas (average of C$ 222). Flying from Great Falls to Las Vegas in October is currently the most expensive (average of C$ 925). 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?

It’s typically best to fly out from Great Falls to Las Vegas in the evening. Doing so could potentially save you 31% 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?

Airfare is below average for this route at the moment.

Great Falls to Las Vegas flights typically cost between C$ 452 and C$ 770 in December.
The cheapest round-trip price found within the last 5 days was C$ 417 on Delta (8 Dec-11 Dec).

Reviews of airlines servicing Las Vegas

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
7.3
Good
676 reviews
Check prices

Crew

8.1

Boarding

7.7

Entertainment

5.5

Comfort

6.9

Overall

7.3

Food

5.9

Reviews

1 / 20
2.0
Mediocre

Nic,Aug 2026

SRQ - ALB

Worker at gate refused to let me measure my personal item and insisted it needed to be a carryon and to pay 75$. I understand if it’s too big but she wouldn’t even let me go measure it. She eventually let me measure my own luggage after back n forth. It is a few inches too big and she comes over and attempts to grab my suitcase out my hands and I pull it away from her. She then shuts the door of the gate and says to call the police. I then just offer to pay for the carryon and she says ok. Then refuses to use let me use my tap to pay, luckily I had my physical card on me. As soon as I walked out the door I respectfully asked for her name. She began screaming at me and threatening me. This worker was just so hostile I understand if my stuffs too big I will pay the difference I’m not trying to get over on the rules. I was confused because I was allowed to board my destination flight with this item as a personal item. So I was confused by this whole situation from the go. It also caused a massive scene at the airport and I was extremely embarrassed. It genuinely seemed like this worker was out to get me for some reason. I had literally just arrived to the gate as it was already boarding so I hadn’t done anything prior. Super weird situation and it really spooked me.
Allegiant Air
7.3
Good
676 reviews
Allegiant Air
7.3
Good
676 reviews
Check prices

Crew

8.1

Boarding

7.7

Entertainment

5.5

Comfort

6.9

Overall

7.3

Food

5.9

Reviews

1 / 20
2.0
Mediocre

Nic,Aug 2026

SRQ - ALB

Worker at gate refused to let me measure my personal item and insisted it needed to be a carryon and to pay 75$. I understand if it’s too big but she wouldn’t even let me go measure it. She eventually let me measure my own luggage after back n forth. It is a few inches too big and she comes over and attempts to grab my suitcase out my hands and I pull it away from her. She then shuts the door of the gate and says to call the police. I then just offer to pay for the carryon and she says ok. Then refuses to use let me use my tap to pay, luckily I had my physical card on me. As soon as I walked out the door I respectfully asked for her name. She began screaming at me and threatening me. This worker was just so hostile I understand if my stuffs too big I will pay the difference I’m not trying to get over on the rules. I was confused because I was allowed to board my destination flight with this item as a personal item. So I was confused by this whole situation from the go. It also caused a massive scene at the airport and I was extremely embarrassed. It genuinely seemed like this worker was out to get me for some reason. I had literally just arrived to the gate as it was already boarding so I hadn’t done anything prior. Super weird situation and it really spooked me.

Related info for your journey

  • 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 3 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 34m. Delta provides one of the quickest options available for as low as C$ 630. Airlines will cover a distance of 1304 km. This flight may include one or multiple stops.

  • 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$ 118. This flight start at 74% 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, June is the cheapest month in which you can book a flight from Great Falls to Las Vegas (average of C$ 222). Flying from Great Falls to Las Vegas in October is currently the most expensive (average of C$ 925). 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
Paradise
Kingman
Henderson
North Las Vegas

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Great Falls to Las Vegas

AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapestC$ 118AverageC$ 355FlexibilityNo cancel feeOn-time88%
Search Allegiant Air flights

Fly with Cheapflights

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

Cheapflights makes it easy to find Great Falls to Las Vegas flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.