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Cheap flights from Great Falls to Las Vegas from C$ 75

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 27/7. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — LAS
15 Jul — 22 Jul1
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 June 2026.

Mon 13/710:19 a.m.
GTF
-
LAS
Nonstop2h 15m
Allegiant Air
Mon 20/76:10 a.m.
LAS
-
GTF
Nonstop2h 19m
Allegiant Air
Deal found 13/6C$ 222
Fri 10/710:24 a.m.
GTF
-
LAS
Nonstop2h 15m
Allegiant Air
Mon 13/76:10 a.m.
LAS
-
GTF
Nonstop2h 19m
Allegiant Air
Deal found 11/6C$ 314
Mon 6/710:19 a.m.
GTF
-
LAS
Nonstop2h 15m
Allegiant Air
Fri 10/76:15 a.m.
LAS
-
GTF
Nonstop2h 19m
Allegiant Air
Deal found 13/6C$ 405
Fri 14/85:09 p.m.
GTF
-
LAS
1 stop6h 56m
Alaska Airlines
Thu 20/88:02 a.m.
LAS
-
GTF
1 stop7h 36m
Alaska Airlines
Deal found 12/6C$ 458
Fri 2/106:21 p.m.
GTF
-
LAS
1 stop5h 53m
Delta
Mon 5/106:35 a.m.
LAS
-
GTF
2 stops10h 06m
Delta
Deal found 12/6C$ 467
Sun 16/86:22 p.m.
GTF
-
LAS
1 stop6h 33m
Delta
Mon 24/85:02 p.m.
LAS
-
GTF
1 stop4h 36m
Delta
Deal found 12/6C$ 500
Sun 16/86:22 p.m.
GTF
-
LAS
1 stop6h 33m
Delta
Sun 23/86:35 a.m.
LAS
-
GTF
2 stops10h 07m
Delta
Deal found 12/6C$ 509
Fri 26/66:25 p.m.
GTF
-
LAS
1 stop6h 19m
Delta
Fri 3/710:00 a.m.
LAS
-
GTF
1 stop6h 44m
Delta
Deal found 15/6C$ 514
Fri 31/71:17 p.m.
GTF
-
LAS
2 stops10h 28m
Delta
Mon 3/86:35 a.m.
LAS
-
GTF
2 stops10h 07m
Delta
Deal found 11/6C$ 516
Mon 19/105:15 p.m.
GTF
-
LAS
1 stop7h 44m
Alaska Airlines
Fri 23/109:38 a.m.
LAS
-
GTF
1 stop5h 57m
Alaska Airlines
Deal found 14/6C$ 521
Tue 23/61:20 p.m.
GTF
-
LAS
2 stops10h 27m
Delta
Thu 2/710:00 a.m.
LAS
-
GTF
1 stop6h 44m
Delta
Deal found 14/6C$ 523

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 June 2026.

Round-trip from

C$ 222

One-way from

C$ 75

Popular in

March

Cheapest in

August

Average price

C$ 219
Allegiant Air
  • Allegiant Air
  • 13/7-20/7
  • Nonstop
  • 4h 34m total
  • Great Falls to Las Vegas
Search Deals
Allegiant Air
  • Allegiant Air
  • 27/7
  • Nonstop
  • 2h 15m total
  • Great Falls to Las Vegas
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 100 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 15 June 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

Fri 14/8

1:08 p.m.-3:57 p.m.

1 stop3h 49m

Las Vegas Harry Reid Intl

Mon 17/8

10:05 a.m.-5:42 p.m.

1 stop6h 37m

C$ 458

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 31/8

5:18 p.m.-11:17 p.m.

1 stop6h 59m

Las Vegas Harry Reid Intl

Thu 3/9

11:43 a.m.-4:38 p.m.

1 stop27h 55m

C$ 458
Quickest round-trip

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Thu 13/8

5:40 a.m.-8:53 a.m.

1 stop4h 13m

Las Vegas Harry Reid Intl

Fri 21/8

5:02 p.m.-10:38 p.m.

1 stop4h 36m

C$ 458

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Tue 30/6

6:25 p.m.-11:44 p.m.

1 stop6h 19m

Las Vegas Harry Reid Intl

Sat 4/7

5:15 p.m.-10:40 p.m.

1 stop4h 25m

C$ 458

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 31/8

7:06 a.m.-12:06 p.m.

1 stop6h 00m

Las Vegas Harry Reid Intl

Fri 4/9

6:00 a.m.-12:28 p.m.

1 stop5h 28m

C$ 458

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 31/8

7:06 a.m.-12:22 p.m.

2 stops6h 16m

Las Vegas Harry Reid Intl

Thu 3/9

6:00 a.m.-12:28 p.m.

1 stop5h 28m

C$ 467

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 20/7

6:25 p.m.-11:40 p.m.

1 stop6h 15m

Las Vegas Harry Reid Intl

Fri 31/7

5:00 p.m.-10:37 p.m.

1 stop4h 37m

C$ 500

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Sun 5/7

5:40 a.m.-8:53 a.m.

1 stop4h 13m

Las Vegas Harry Reid Intl

Thu 9/7

6:52 a.m.-5:42 p.m.

2 stops9h 50m

C$ 509
Cheapest one-way
Quickest one-way

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 27/7

10:19 a.m.-11:34 a.m.

Nonstop2h 15m

C$ 75

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Sun 19/7

5:40 a.m.-8:50 a.m.

1 stop4h 10m

C$ 229

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/6

Showing 1-10 of 17 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?

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 16 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, August is the cheapest month in which you can book a flight from Great Falls to Las Vegas (average of C$ 168). Flying from Great Falls to Las Vegas in March is currently the most expensive (average of C$ 410). 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 June 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.

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 June 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
694 reviews
Check prices

Crew

8.1

Overall

7.3

Food

5.8

Boarding

7.6

Entertainment

5.4

Comfort

6.9

Reviews

1 / 20
10.0
Excellent

Jeff,Jun 2026

DEN - TYS

Everything about the flight timing was perfect. The plane was clean and comfortable. The only aggravation is no access to phone charging or complementary food/drink on a cross-country trip. There were no entertainment options, so I'm not sure how I'm supposed to evaluate that on a survey. It's a discount carrier, I get it, but other options are flying the same route with better depart/arrival times that offer these options.
Allegiant Air
7.3
Good
694 reviews
Allegiant Air
7.3
Good
694 reviews
Check prices

Crew

8.1

Overall

7.3

Food

5.8

Boarding

7.6

Entertainment

5.4

Comfort

6.9

Reviews

1 / 20
10.0
Excellent

Jeff,Jun 2026

DEN - TYS

Everything about the flight timing was perfect. The plane was clean and comfortable. The only aggravation is no access to phone charging or complementary food/drink on a cross-country trip. There were no entertainment options, so I'm not sure how I'm supposed to evaluate that on a survey. It's a discount carrier, I get it, but other options are flying the same route with better depart/arrival times that offer these options.

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 10 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 49m. Delta provides one of the quickest options available for as low as C$ 458. 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$ 116. This flight start at 62% 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, August is the cheapest month in which you can book a flight from Great Falls to Las Vegas (average of C$ 168). Flying from Great Falls to Las Vegas in March is currently the most expensive (average of C$ 410). 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
North Las Vegas
Henderson
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 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapestC$ 116AverageC$ 234FlexibilityNo 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.

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