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Cheap flights from Great Falls to Las Vegas from C$ 255

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — LAS
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap 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 28 October 2025.

Round-trip from

C$ 255

Popular in

October

Cheapest in

August

Average price

C$ 462
Allegiant Air
  • Allegiant Air
  • 10/12-12/12
  • Nonstop
  • 4h 35m total
  • Great Falls to Las Vegas
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Highest demand for flights based on searches. 12% potential increase in price (C$ 54 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease (C$ 25 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 28 October 2025.

Wed 10/1211:17 a.m.GTF - LAS
Nonstop2h 13mAllegiant Air
Fri 12/126:13 p.m.LAS - GTF
Nonstop2h 22mAllegiant Air
Deal found 27/10C$ 255
Mon 17/116:50 p.m.GTF - LAS
1 stop23h 53mAlaska Airlines
Thu 20/1111:48 a.m.LAS - GTF
1 stop5h 22mAlaska Airlines
Deal found 27/10C$ 385
Fri 5/127:35 p.m.GTF - LAS
1 stop28h 18mAlaska Airlines
Wed 10/127:00 a.m.LAS - GTF
1 stop10h 55mAlaska Airlines
Deal found 28/10C$ 394
Wed 10/121:12 p.m.GTF - LAS
2 stops10h 38mDelta
Fri 12/125:20 p.m.LAS - GTF
1 stop4h 10mDelta
Deal found 28/10C$ 401
Fri 5/127:35 p.m.GTF - LAS
1 stop26h 25mAlaska Airlines
Tue 9/127:00 a.m.LAS - GTF
1 stop10h 55mAlaska Airlines
Deal found 27/10C$ 408
Sun 14/121:12 p.m.GTF - LAS
2 stops10h 38mDelta
Fri 19/125:20 p.m.LAS - GTF
1 stop4h 10mDelta
Deal found 26/10C$ 422

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 28 October 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

Wed 10/12

11:17 a.m.-12:30 p.m.

Nonstop2h 13m

Las Vegas Harry Reid Intl

Fri 12/12

6:13 p.m.-9:35 p.m.

Nonstop2h 22m

C$ 256

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Thu 22/1

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

1 stop7h 03m

Las Vegas Harry Reid Intl

Mon 26/1

3:33 p.m.-9:53 p.m.

1 stop5h 20m

C$ 361

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 12/1

8:00 p.m.-9:00 p.m.

1 stop26h 00m

Las Vegas Harry Reid Intl

Fri 16/1

7:36 p.m.-7:20 p.m.

1 stop22h 44m

C$ 366

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 17/11

6:50 p.m.-2:47 p.m.

1 stop20h 57m

Las Vegas Harry Reid Intl

Thu 20/11

10:08 a.m.-6:10 p.m.

1 stop7h 02m

C$ 385

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Fri 5/12

7:35 p.m.-10:53 p.m.

1 stop28h 18m

Las Vegas Harry Reid Intl

Tue 9/12

7:00 a.m.-6:55 p.m.

1 stop10h 55m

C$ 394

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Fri 5/12

7:35 p.m.-10:53 p.m.

1 stop28h 18m

Las Vegas Harry Reid Intl

Wed 10/12

7:00 a.m.-6:55 p.m.

1 stop10h 55m

C$ 394

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Wed 10/12

1:12 p.m.-10:50 p.m.

2 stops10h 38m

Las Vegas Harry Reid Intl

Fri 12/12

5:20 p.m.-10:30 p.m.

1 stop4h 10m

C$ 401

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Tue 11/11

2:30 p.m.-8:46 p.m.

1 stop7h 16m

C$ 347

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Tue 11/11

1:12 p.m.-10:37 p.m.

2 stops10h 25m

C$ 387

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Thu 13/11

1:12 p.m.-11:19 p.m.

2 stops11h 07m

C$ 483

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/10

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 24 October 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$ 60). Flying from Great Falls to Las Vegas in December is currently the most expensive (average of C$ 228). 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 28 October 2025.

It’s typically best to fly out from Great Falls to Las Vegas in the morning. Doing so could potentially save you 16% on the flight price compared to flying at noon, which is usually more expensive.

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 28 October 2025.
Get a feel of what it's like to fly with Alaska Airlines and 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.
Alaska Airlines
8.0
Very good
11,199 reviews
Check prices

Boarding

8.1

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,199 reviews
Alaska Airlines
8.0
Very good
11,199 reviews
Check prices

Boarding

8.1

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Allegiant Air
7.2
Good
695 reviews
Alaska Airlines
8.0
Very good
11,199 reviews
Check prices

Boarding

8.1

Overall

8.0

Comfort

7.8

Food

7.1

Entertainment

7.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

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 33 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 2h 13m. Allegiant Air provides one of the quickest options available for as low as C$ 256. Airlines will cover a distance of 1304 km. This flight may include one or multiple stops.

  • What are the cheapest airlines flying 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$ 128. Another option worth looking into is Alaska Airlines, starting at C$ 519 round trip. These flights start at 54% 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$ 60). Flying from Great Falls to Las Vegas in December is currently the most expensive (average of C$ 228). 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 2 airlines flying from Great Falls to Las Vegas

Discover the top 2 airlines 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 28 October 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapestC$ 128AverageC$ 239FlexibilityNo cancel feeOn-time88%
Search Allegiant Air flights
Alaska AirlinesCheapestC$ 519AverageC$ 685FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

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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.

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