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Cheap flights from Great Falls to Las Vegas from C$ 285

GTF — LAS
24 Oct — 31 Oct1
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

Mon 16/112:45 p.m. -
1 stop4h 53m
Thu 19/113:10 p.m. -
1 stop5h 28m
Deal found 23/9C$ 582
Mon 16/112:45 p.m. -
1 stop4h 53m
Wed 18/119:44 a.m. -
2 stops10h 54m
Deal found 23/9C$ 590
Fri 30/105:15 p.m. -
1 stop6h 19m
Mon 2/1112:37 p.m. -
2 stops26h 53m
Deal found 22/9C$ 609
Mon 12/106:27 p.m. -
1 stop6h 32m
Sat 17/105:10 p.m. -
1 stop4h 30m
Deal found 23/9C$ 613
Mon 12/106:27 p.m. -
1 stop6h 32m
Fri 16/105:10 p.m. -
1 stop4h 30m
Deal found 20/9C$ 616
Thu 24/126:20 a.m. -
1 stop5h 23m
Tue 29/125:15 a.m. -
1 stop7h 26m
Deal found 24/9C$ 618
Sun 6/124:51 p.m. -
1 stop6h 12m
Wed 9/1212:08 p.m. -
2 stops27h 03m
Deal found 21/9C$ 620
Mon 5/106:21 p.m. -
1 stop6h 14m
Wed 7/101:02 p.m. -
2 stops8h 38m
Deal found 20/9C$ 624
Mon 5/101:15 p.m. -
2 stops10h 26m
Thu 8/107:00 a.m. -
2 stops9h 47m
Deal found 21/9C$ 628
Fri 23/102:37 p.m. -
1 stop7h 19m
Fri 30/105:15 a.m. -
1 stop7h 34m
Deal found 23/9C$ 630

Find flight deals from Great Falls to Las Vegas

Round-trip from

C$ 582

One-way from

C$ 285

Popular in

September

Cheapest in

June

Average price

C$ 590
United Airlines
  • United Airlines
  • 5/10-7/10
  • 2 total stops
  • 12h 52m total
  • Great Falls to Las Vegas
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 8/11-31/12
  • 1 total stop
  • 5h 20m total
  • Great Falls to Las Vegas
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (C$ 101 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
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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

Fri 6/11

5:10 p.m.-10:37 p.m.

1 stop6h 27m

Las Vegas Harry Reid Intl

Wed 31/12

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

Nonstop0h 00m

C$ 289

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Tue 8/12

4:51 p.m.-10:03 p.m.

1 stop6h 12m

Las Vegas Harry Reid Intl

Wed 31/12

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

Nonstop0h 00m

C$ 291

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Wed 2/12

4:51 p.m.-9:33 p.m.

1 stop5h 42m

Las Vegas Harry Reid Intl

Wed 31/12

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

Nonstop0h 00m

C$ 291

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Fri 4/12

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

1 stop6h 34m

Las Vegas Harry Reid Intl

Wed 31/12

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

Nonstop0h 00m

C$ 306
Quickest round-trip

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Thu 5/11

6:27 p.m.-10:30 p.m.

1 stop5h 03m

Las Vegas Harry Reid Intl

Wed 31/12

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

Nonstop0h 00m

C$ 306

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Fri 11/12

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

1 stop6h 34m

Las Vegas Harry Reid Intl

Wed 31/12

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

Nonstop0h 00m

C$ 308

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Sun 8/11

5:40 a.m.-3:02 p.m.

2 stops10h 22m

Las Vegas Harry Reid Intl

Wed 31/12

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

Nonstop0h 00m

C$ 315

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Wed 2/12

1:19 p.m.-10:45 p.m.

2 stops10h 26m

Las Vegas Harry Reid Intl

Wed 31/12

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

Nonstop0h 00m

C$ 315

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Sat 5/12

1:19 p.m.-10:45 p.m.

2 stops10h 26m

Las Vegas Harry Reid Intl

Wed 31/12

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

Nonstop0h 00m

C$ 315

Great FallsLas Vegas

GTF Great Falls - LAS Las Vegas Harry Reid Intl

GTFLAS

Great Falls

Wed 4/11

2:45 p.m.-8:45 p.m.

1 stop7h 00m

Las Vegas Harry Reid Intl

Wed 31/12

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

Nonstop0h 00m

C$ 362

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/9

Showing 1-10 of 15 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$ 220). Flying from Great Falls to Las Vegas in September is currently the most expensive (average of C$ 590). 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 51% 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 typical for this route at the moment.

Great Falls to Las Vegas flights typically cost between C$ 393 and C$ 724 in February.
The cheapest round-trip price found within the last 5 days was C$ 582 on Alaska Airlines (6 Feb-9 Feb).

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
677 reviews
Check prices

Overall

7.3

Comfort

6.9

Crew

8.1

Food

5.8

Boarding

7.7

Entertainment

5.5

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
677 reviews
Allegiant Air
7.3
Good
677 reviews
Check prices

Overall

7.3

Comfort

6.9

Crew

8.1

Food

5.8

Boarding

7.7

Entertainment

5.5

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 4 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 10h 24m. Delta provides one of the quickest options available for as low as C$ 624. 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$ 139. This flight start at 63% 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$ 220). Flying from Great Falls to Las Vegas in September is currently the most expensive (average of C$ 590). 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
North Las Vegas
Henderson

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Great Falls to Las Vegas

AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapestC$ 139AverageC$ 284FlexibilityNo cancel feeOn-time88%
Search Allegiant Air flights

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