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Cheap flights from Great Falls to Las Vegas from C$ 204

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — LAS
21 Apr — 28 Apr1
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 22 March 2026.

Fri 3/410:22 a.m.
GTF
-
LAS
Nonstop2h 15m
Allegiant Air
Mon 6/46:10 a.m.
LAS
-
GTF
Nonstop2h 22m
Allegiant Air
Deal found 17/3C$ 377
Thu 14/59:26 p.m.
GTF
-
LAS
1 stop12h 28m
Multiple Airlines
Mon 18/57:30 a.m.
LAS
-
GTF
Nonstop2h 22m
Multiple Airlines
Deal found 17/3C$ 396
Sun 12/46:22 p.m.
GTF
-
LAS
1 stop6h 33m
Delta
Fri 17/410:25 a.m.
LAS
-
GTF
1 stop6h 15m
Delta
Deal found 21/3C$ 409
Mon 6/46:15 a.m.
GTF
-
LAS
1 stop5h 33m
United Airlines
Fri 10/41:40 p.m.
LAS
-
GTF
1 stop6h 37m
United Airlines
Deal found 19/3C$ 429
Tue 5/55:30 a.m.
GTF
-
LAS
1 stop3h 48m
Delta
Sat 9/55:00 p.m.
LAS
-
GTF
1 stop4h 26m
Delta
Deal found 20/3C$ 436
Sat 4/46:22 p.m.
GTF
-
LAS
1 stop5h 18m
Delta
Wed 8/46:00 a.m.
LAS
-
GTF
1 stop5h 24m
Delta
Deal found 20/3C$ 450
Sun 12/45:06 p.m.
GTF
-
LAS
1 stop7h 53m
Alaska Airlines
Fri 17/46:00 a.m.
LAS
-
GTF
1 stop9h 26m
Alaska Airlines
Deal found 18/3C$ 460
Wed 22/46:15 a.m.
GTF
-
LAS
1 stop7h 44m
United Airlines
Fri 24/45:30 a.m.
LAS
-
GTF
1 stop7h 01m
United Airlines
Deal found 18/3C$ 465
Tue 7/45:06 p.m.
GTF
-
LAS
1 stop6h 40m
Alaska Airlines
Tue 14/48:00 a.m.
LAS
-
GTF
1 stop7h 26m
Alaska Airlines
Deal found 18/3C$ 484
Tue 28/46:15 p.m.
GTF
-
LAS
1 stop5h 38m
Alaska Airlines
Sat 2/57:00 a.m.
LAS
-
GTF
1 stop9h 35m
Alaska Airlines
Deal found 21/3C$ 487
Thu 26/36:22 p.m.
GTF
-
LAS
1 stop6h 33m
Delta
Thu 2/46:00 a.m.
LAS
-
GTF
1 stop5h 24m
Delta
Deal found 19/3C$ 491

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 22 March 2026.

Round-trip from

C$ 377

One-way from

C$ 204

Popular in

December

Cheapest in

August

Average price

C$ 276
Allegiant Air
  • Allegiant Air
  • 3/4-6/4
  • Nonstop
  • 4h 37m total
  • Great Falls to Las Vegas
Search Deals
Delta
  • Delta
  • 5/5
  • 1 total stop
  • 6h 17m total
  • Great Falls to Las Vegas
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 22 March 2026.
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 - LAS

GTFLAS

Great Falls

Tue 5/5

5:30 a.m.-8:18 a.m.

1 stop3h 48m

Las Vegas Harry Reid Intl

Sat 9/5

10:22 a.m.-5:39 p.m.

1 stop6h 17m

C$ 409
Quickest round-trip

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Fri 7/8

5:40 a.m.-8:48 a.m.

1 stop4h 08m

Las Vegas Harry Reid Intl

Mon 10/8

5:30 p.m.-10:44 p.m.

1 stop4h 14m

C$ 436

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Wed 29/4

2:30 p.m.-7:46 p.m.

1 stop6h 16m

Las Vegas Harry Reid Intl

Sat 2/5

5:15 a.m.-1:34 p.m.

1 stop7h 19m

C$ 532

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 4/5

6:15 p.m.-10:53 p.m.

1 stop5h 38m

Las Vegas Harry Reid Intl

Fri 8/5

7:00 a.m.-5:35 p.m.

1 stop9h 35m

C$ 542

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Tue 5/5

6:15 p.m.-8:46 a.m.

2 stops15h 31m

Las Vegas Harry Reid Intl

Sat 9/5

9:40 a.m.-5:35 p.m.

1 stop6h 55m

C$ 565

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Fri 3/4

2:30 p.m.-8:58 p.m.

1 stop7h 28m

Las Vegas Harry Reid Intl

Mon 6/4

5:30 a.m.-1:31 p.m.

1 stop7h 01m

C$ 587

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Sun 12/4

5:06 p.m.-10:46 p.m.

1 stop6h 40m

Las Vegas Harry Reid Intl

Fri 17/4

7:59 p.m.-4:26 p.m.

2 stops19h 27m

C$ 665
Cheapest one-way

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Tue 5/5

6:20 p.m.-11:37 p.m.

1 stop6h 17m

C$ 204

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Sun 29/3

2:30 p.m.-7:46 p.m.

1 stop6h 16m

C$ 266

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Tue 5/5

6:15 p.m.-1:30 p.m.

2 stops20h 15m

C$ 295

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/3

Showing 1-10 of 14 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
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 13 March 2026.

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$ 193). 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 22 March 2026.

It’s typically best to fly out from Great Falls to Las Vegas in the evening. Doing so could potentially save you 48% on the flight price compared to flying in the afternoon, 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 22 March 2026.
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
711 reviews
Check prices

Entertainment

5.5

Overall

7.3

Food

5.9

Comfort

6.9

Crew

8.1

Boarding

7.6

Reviews

1 / 20
4.0
Okay

Michael,Feb 2026

PIE - IND

I appreciate the low cost but the seating is ridiculous. So packed it feels dangerous. Actually it was so bad today, I'm going to look for another airline next time I fly.
Allegiant Air
7.3
Good
711 reviews
Allegiant Air
7.3
Good
711 reviews
Check prices

Entertainment

5.5

Overall

7.3

Food

5.9

Comfort

6.9

Crew

8.1

Boarding

7.6

Reviews

1 / 20
4.0
Okay

Michael,Feb 2026

PIE - IND

I appreciate the low cost but the seating is ridiculous. So packed it feels dangerous. Actually it was so bad today, I'm going to look for another airline next time I fly.

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 13 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 3h 48m. Delta provides one of the quickest options available for as low as C$ 409. 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 60% 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$ 193). 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
Kingman
Boulder City
Henderson
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 22 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapestC$ 113AverageC$ 230FlexibilityNo 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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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?

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