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Cheap flights from Great Falls to Las Vegas from C$ 82

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — LAS
31 May — 7 Jun1
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 1 May 2026.

Mon 4/511:42 a.m.
GTF
-
LAS
Nonstop2h 15m
Allegiant Air
Mon 11/57:30 a.m.
LAS
-
GTF
Nonstop2h 22m
Allegiant Air
Deal found 29/4C$ 195
Mon 25/510:24 a.m.
GTF
-
LAS
Nonstop2h 13m
Multiple Airlines
Wed 27/510:07 p.m.
LAS
-
GTF
1 stop21h 10m
Multiple Airlines
Deal found 30/4C$ 222
Mon 4/56:15 p.m.
GTF
-
LAS
1 stop5h 38m
Multiple Airlines
Mon 11/57:30 a.m.
LAS
-
GTF
Nonstop2h 22m
Multiple Airlines
Deal found 29/4C$ 387
Sat 4/75:09 p.m.
GTF
-
LAS
1 stop6h 41m
Multiple Airlines
Mon 6/76:10 a.m.
LAS
-
GTF
Nonstop2h 19m
Multiple Airlines
Deal found 30/4C$ 396
Mon 3/85:09 p.m.
GTF
-
LAS
1 stop6h 41m
Alaska Airlines
Mon 24/88:00 a.m.
LAS
-
GTF
1 stop7h 38m
Alaska Airlines
Deal found 28/4C$ 434
Fri 29/56:19 p.m.
GTF
-
LAS
1 stop6h 25m
Delta
Tue 2/66:10 a.m.
LAS
-
GTF
1 stop5h 17m
Delta
Deal found 1/5C$ 439
Mon 11/56:15 p.m.
GTF
-
LAS
1 stop5h 38m
Alaska Airlines
Fri 15/59:00 p.m.
LAS
-
GTF
1 stop20h 12m
Alaska Airlines
Deal found 26/4C$ 447
Wed 5/85:40 a.m.
GTF
-
LAS
1 stop4h 08m
Delta
Sat 22/85:30 p.m.
LAS
-
GTF
1 stop4h 14m
Delta
Deal found 28/4C$ 453
Mon 11/56:19 p.m.
GTF
-
LAS
1 stop6h 24m
Delta
Fri 15/55:00 p.m.
LAS
-
GTF
1 stop4h 26m
Delta
Deal found 27/4C$ 467

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 1 May 2026.

Round-trip from

C$ 222

One-way from

C$ 82

Popular in

December

Cheapest in

August

Average price

C$ 407
25/5-27/5
  • 25/5-27/5
  • 1 total stop
  • 23h 23m total
  • Great Falls to Las Vegas
Search Deals
Allegiant Air
  • Allegiant Air
  • 12/6
  • Nonstop
  • 2h 17m total
  • Great Falls to Las Vegas
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 1 May 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 11/9

5:19 p.m.-11:17 p.m.

1 stop6h 58m

Las Vegas Harry Reid Intl

Fri 18/9

6:00 a.m.-4:39 p.m.

1 stop9h 39m

C$ 434

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 1/6

5:40 a.m.-8:54 a.m.

1 stop4h 14m

Las Vegas Harry Reid Intl

Mon 8/6

6:00 a.m.-12:40 p.m.

1 stop5h 40m

C$ 439

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Tue 12/5

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

1 stop5h 38m

Las Vegas Harry Reid Intl

Fri 15/5

9:00 p.m.-6:12 p.m.

1 stop20h 12m

C$ 447

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Tue 16/6

6:25 p.m.-11:45 p.m.

1 stop6h 20m

Las Vegas Harry Reid Intl

Sun 21/6

6:00 a.m.-12:40 p.m.

1 stop5h 40m

C$ 453

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Tue 26/5

6:19 p.m.-11:43 p.m.

1 stop6h 24m

Las Vegas Harry Reid Intl

Tue 2/6

5:05 p.m.-10:26 p.m.

1 stop4h 21m

C$ 453

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 11/5

6:19 p.m.-11:43 p.m.

1 stop6h 24m

Las Vegas Harry Reid Intl

Fri 15/5

5:00 p.m.-10:26 p.m.

1 stop4h 26m

C$ 467
Quickest round-trip

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Fri 19/6

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

1 stop4h 13m

Las Vegas Harry Reid Intl

Mon 22/6

5:00 p.m.-10:40 p.m.

1 stop4h 40m

C$ 491

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Sat 4/7

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

1 stop4h 13m

Las Vegas Harry Reid Intl

Mon 6/7

5:00 p.m.-10:40 p.m.

1 stop4h 40m

C$ 491

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Wed 13/5

2:35 p.m.-7:07 p.m.

1 stop5h 32m

Las Vegas Harry Reid Intl

Thu 14/5

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

1 stop7h 19m

C$ 492

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 11/5

6:19 p.m.-11:43 p.m.

1 stop6h 24m

Las Vegas Harry Reid Intl

Fri 5/6

6:10 a.m.-12:27 p.m.

1 stop5h 17m

C$ 510

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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$ 164). Flying from Great Falls to Las Vegas in December is currently the most expensive (average of C$ 416). 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 1 May 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 1 May 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
707 reviews
Check prices

Crew

8.1

Food

5.8

Entertainment

5.4

Overall

7.3

Boarding

7.6

Comfort

6.9

Reviews

1 / 20
2.0
Mediocre

larry,Apr 2026

PSC - SNA

After waiting more than 6 hours our flight was delayed until the next day. The flight was extremely uncomfortable. Like riding on hard plastic lawn chairs in the sky.
Allegiant Air
7.3
Good
707 reviews
Allegiant Air
7.3
Good
707 reviews
Check prices

Crew

8.1

Food

5.8

Entertainment

5.4

Overall

7.3

Boarding

7.6

Comfort

6.9

Reviews

1 / 20
2.0
Mediocre

larry,Apr 2026

PSC - SNA

After waiting more than 6 hours our flight was delayed until the next day. The flight was extremely uncomfortable. Like riding on hard plastic lawn chairs in the sky.

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 4h 14m. Alaska Airlines provides one of the quickest options available for as low as C$ 439. 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$ 112. This flight start at 61% 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$ 164). Flying from Great Falls to Las Vegas in December is currently the most expensive (average of C$ 416). 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
Henderson
North Las Vegas
Paradise

Browse thousands of different options on Cheapflights for your next trip

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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 1 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapestC$ 112AverageC$ 223FlexibilityNo 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?

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.

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