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$51+ Cheap flights from Great Falls to Las Vegas (GTF - LAS)

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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
GTF — LAS
Jan 16 — Jan 231
Fri 1/16
Fri 1/23
1 adult, Economy
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1. Tell us where you want to go

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2. Select your favorite providers

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Cheapflights Tip: The best prices from Great Falls to Las Vegas Harry Reid Intl are usually found in August or July, booked 17 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Cheap flight deals from Great Falls to Las Vegas

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 December 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:25 pmGTF - LAS
Nonstop2h 13mAllegiant Air
Mon 1/56:18 pmLAS - GTF
Nonstop2h 22mAllegiant Air
Deal found 12/16$274
This Cheapflightsfares deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:25 pmGTF - LAS
Nonstop2h 13mAllegiant Air
Fri 1/26:18 pmLAS - GTF
Nonstop2h 22mAllegiant Air
Deal found 12/16$280
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:25 pmGTF - LAS
Nonstop2h 13mAllegiant Air
Mon 1/56:18 pmLAS - GTF
Nonstop2h 22mAllegiant Air
Deal found 12/16$389
This Kiwi.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:38 amGTF - LAS
2 stops27h 36mAllegiant Air
Mon 12/296:18 pmLAS - GTF
Nonstop2h 22mAllegiant Air
Deal found 12/14$455
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:25 pmGTF - LAS
Nonstop2h 13mAllegiant Air
Fri 1/26:18 pmLAS - GTF
Nonstop2h 22mAllegiant Air
Deal found 12/16$474
This Kiwi.com deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1910:25 pmGTF - LAS
Nonstop2h 13mAllegiant Air
Sun 12/216:15 pmLAS - GTF
2 stops38h 33mAllegiant Air
Deal found 12/15$539
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:35 pmGTF - LAS
1 stop6h 47mUnited Airlines
Thu 1/15:30 amLAS - GTF
1 stop7h 09mUnited Airlines
Deal found 12/14$540
This Kiwi.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:38 amGTF - LAS
3 stops26h 49mMultiple Airlines
Mon 12/296:18 pmLAS - GTF
Nonstop2h 22mMultiple Airlines
Deal found 12/14$615
This Kiwi.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:25 pmGTF - LAS
Nonstop2h 13mMultiple Airlines
Wed 12/316:00 amLAS - GTF
1 stop11h 41mMultiple Airlines
Deal found 12/16$627

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 December 17, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$94
(Gotogate)

One-way from

$51
(Mytrip)

Popular in

December

Cheapest in

August

Average price

$305

Good round-trip deal

$155 or less
Provider with most accurate pricing for Great Falls-Las Vegas Harry Reid Intl flight deals.
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Provider most trusted by Cheapflights users for Great Falls-Las Vegas Harry Reid Intl flights.
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From Great Falls to Las Vegas Harry Reid Intl
Search Deals
One-way flight from Great Falls to Las Vegas Harry Reid Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Great Falls to Las Vegas Harry Reid Intl.
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 2,558,603 searches. Data last updated December 17, 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

Tue 1/27

6:10 pm-12:50 pm

2 stops19h 40m

Las Vegas Harry Reid Intl

Tue 2/3

6:05 am-5:30 pm

2 stops10h 25m

$213

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 1/19

5:18 pm-6:32 pm

Nonstop2h 14m

Las Vegas Harry Reid Intl

Fri 1/23

7:52 pm-5:19 pm

2 stops20h 27m

$218

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Fri 6/12

10:18 am-11:35 am

Nonstop2h 17m

Las Vegas Harry Reid Intl

Mon 6/15

6:10 am-9:28 am

Nonstop2h 18m

$227

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Tue 1/27

5:30 am-3:00 pm

2 stops10h 30m

Las Vegas Harry Reid Intl

Mon 2/2

6:05 am-10:30 pm

2 stops15h 25m

$233

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Fri 1/30

6:10 pm-3:00 pm

2 stops21h 50m

Las Vegas Harry Reid Intl

Wed 2/4

6:05 am-5:30 pm

2 stops10h 25m

$233

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Sat 1/31

1:12 pm-9:55 am

2 stops21h 43m

Las Vegas Harry Reid Intl

Mon 2/2

6:05 am-5:30 pm

2 stops10h 25m

$233

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Fri 2/13

10:42 am-12:07 pm

Nonstop2h 25m

Las Vegas Harry Reid Intl

Fri 2/20

6:35 am-9:52 am

Nonstop2h 17m

$236

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Sun 2/1

5:59 pm-11:12 pm

1 stop6h 13m

Las Vegas Harry Reid Intl

Thu 2/5

10:07 am-5:19 pm

1 stop6h 12m

$248

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 1/26

5:59 pm-11:12 pm

1 stop6h 13m

Las Vegas Harry Reid Intl

Wed 2/4

10:07 am-5:19 pm

1 stop6h 12m

$248

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Fri 1/30

5:59 pm-11:12 pm

1 stop6h 13m

Las Vegas Harry Reid Intl

Thu 2/5

10:07 am-5:19 pm

1 stop6h 12m

$248

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 22 results
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Compare providers for flights from Great Falls to Las Vegas

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Great Falls to Las Vegas in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Great Falls-Las Vegas flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Great Falls-Las Vegas flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Great Falls-Las Vegas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Great Falls-Las Vegas flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Great Falls-Las Vegas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 December 12, 2025.

Booking 17 days in advance of your planned departure date is, on average, the best time to get cheap flights from Great Falls to Las Vegas. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $43). Flying from Great Falls to Las Vegas in December is currently the most expensive (average of $142). 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 December 17, 2025.

One of the essential ways to save on airfare from Great Falls to Las Vegas is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 57% on airfare.

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 December 17, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and Allegiant Air from Great Falls to Las Vegas to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,005 reviews
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,091 reviews
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Allegiant Air
7.2
Good
700 reviews
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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?

    Within the past month, 3 users have taken a look at flights from Great Falls to Las Vegas Harry Reid Intl.

  • How long is the flight from Great Falls to Las Vegas?

    For as low as $227, Delta can have you in Las Vegas from Great Falls in 2h 17m. The distance from Great Falls to Las Vegas is about 810 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Great Falls to Las Vegas round-trip?

    Allegiant Air, at $69, was found to be the cheapest airline from Great Falls to Las Vegas.Alternate airlines to your destination round-trip include United Airlines and Delta. These flights start at 64% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Great Falls to Las Vegas one-way?

    The cheapest airlines for a one-way flight from Great Falls to Las Vegas are Allegiant Air ($48), United Airlines ($127), and Delta ($193).

  • What are the cheapest flights from Great Falls to Las Vegas?

    Looking at all options, your cheapest flight can be booked for $95. While the most popular route (Great Falls - Las Vegas Harry Reid Intl) can be booked for $94 on average, our data indicates $207 when flying from Great Falls to Las Vegas.

  • 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 $43). Flying from Great Falls to Las Vegas in December is currently the most expensive (average of $142). 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

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Paradise
Henderson
North Las Vegas
Kingman
Winchester
Primm
Sunrise Manor
Mesquite
Needles
Boulder City

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Top 3 airlines flying from Great Falls to Las Vegas

Discover the top 3 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 2,558,603 searches. Data last updated December 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$78Average$163FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$272Average$354FlexibilityNo cancel feeOn-time69%
DeltaCheapest$272Average$542FlexibilityNo cancel feeOn-timeN/A

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