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Cheap flights from Great Falls to Las Vegas from $43

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Great Falls to Las Vegas departing on 4/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Great Falls to Las Vegas

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
10:18 am - 11:35 am
GTF
-
LAS
2h 17mnonstop
Allegiant Air Logo
6:10 am - 9:28 am
LAS
-
GTF
2h 18mnonstop
$83Allegiant Air
Mon, Jun 15 - Fri, Jun 19
Allegiant Air Logo
11:42 am - 12:57 pm
GTF
-
LAS
2h 15mnonstop
Allegiant Air Logo
7:30 am - 10:52 am
LAS
-
GTF
2h 22mnonstop
$84Allegiant Air
Mon, May 4 - Fri, May 8
Allegiant Air Logo
10:18 am - 11:35 am
GTF
-
LAS
2h 17mnonstop
Allegiant Air Logo
6:10 am - 9:28 am
LAS
-
GTF
2h 18mnonstop
$87Allegiant Air
Mon, Jun 15 - Fri, Jun 19
Allegiant Air Logo
11:42 am - 12:57 pm
GTF
-
LAS
2h 15mnonstop
Allegiant Air Logo
7:30 am - 10:52 am
LAS
-
GTF
2h 22mnonstop
$89Allegiant Air
Mon, May 4 - Fri, May 8
Allegiant Air Logo
11:42 am - 12:57 pm
GTF
-
LAS
2h 15mnonstop
Allegiant Air Logo
6:15 am - 9:34 am
LAS
-
GTF
2h 19mnonstop
$91Allegiant Air
Mon, May 18 - Fri, May 22
Allegiant Air Logo
10:18 am - 11:35 am
GTF
-
LAS
2h 17mnonstop
Allegiant Air Logo
6:10 am - 9:28 am
LAS
-
GTF
2h 18mnonstop
$92Allegiant Air
Mon, Jun 8 - Fri, Jun 12
Allegiant Air Logo
10:18 am - 11:35 am
GTF
-
LAS
2h 17mnonstop
Allegiant Air Logo
6:10 am - 9:28 am
LAS
-
GTF
2h 18mnonstop
$97Allegiant Air
Mon, Jun 15 - Fri, Jun 19
Allegiant Air Logo
10:24 am - 11:37 am
GTF
-
LAS
2h 13mnonstop
Allegiant Air Logo
6:10 am - 9:28 am
LAS
-
GTF
2h 18mnonstop
$99Allegiant Air
Mon, Jun 1 - Fri, Jun 12
Allegiant Air Logo
10:18 am - 11:35 am
GTF
-
LAS
2h 17mnonstop
Allegiant Air Logo
6:10 am - 9:28 am
LAS
-
GTF
2h 18mnonstop
$100Allegiant Air
Fri, Jun 12 - Mon, Jun 15
Allegiant Air Logo
10:18 am - 11:35 am
GTF
-
LAS
2h 17mnonstop
Allegiant Air Logo
6:10 am - 9:28 am
LAS
-
GTF
2h 18mnonstop
$118Allegiant Air
Fri, Jun 12 - Mon, Jun 15

Allegiant Air flights from Great Falls to Las Vegas

Our best Allegiant Air deals on Great Falls to Las Vegas flight tickets
Allegiant Air
Jun 15
GTF10:18 amGreat Falls
2h 17m
LAS11:35 amLas Vegas Harry Reid Intl
Jun 19
LAS6:10 amLas Vegas Harry Reid Intl
2h 18m
GTF9:28 amGreat Falls
$83
Allegiant Air
May 4
GTF11:42 amGreat Falls
2h 15m
LAS12:57 pmLas Vegas Harry Reid Intl
May 8
LAS7:30 amLas Vegas Harry Reid Intl
2h 22m
GTF10:52 amGreat Falls
$84
Allegiant Air
Jun 15
GTF10:18 amGreat Falls
2h 17m
LAS11:35 amLas Vegas Harry Reid Intl
Jun 19
LAS6:10 amLas Vegas Harry Reid Intl
2h 18m
GTF9:28 amGreat Falls
$87

Alaska Airlines flights from Great Falls to Las Vegas

Our best Alaska Airlines deals on Great Falls to Las Vegas flight tickets
Alaska Airlines
Apr 21
GTF5:06 pmGreat Falls
6h 40m
1 stop
LAS10:46 pmLas Vegas Harry Reid Intl
May 5
LAS10:19 amLas Vegas Harry Reid Intl
30h 16m
2 stops
GTF5:35 pmGreat Falls
$436
Alaska Airlines
Apr 24
GTF6:15 pmGreat Falls
6h 44m
1 stop
LAS11:59 pmLas Vegas Harry Reid Intl
Apr 27
LAS8:07 pmLas Vegas Harry Reid Intl
20h 28m
2 stops
GTF5:35 pmGreat Falls
$486
Alaska Airlines
Apr 20
GTF5:06 pmGreat Falls
6h 40m
1 stop
LAS10:46 pmLas Vegas Harry Reid Intl
Apr 24
LAS7:42 pmLas Vegas Harry Reid Intl
20h 53m
2 stops
GTF5:35 pmGreat Falls
$604

momondo 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, momondo users made 832,500 searches. Data last updated April 11, 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

Mon 6/15

10:18 am-11:35 am

Nonstop2h 17m

Las Vegas Harry Reid Intl

Fri 6/19

6:10 am-9:28 am

Nonstop2h 18m

$83

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 5/4

11:42 am-12:57 pm

Nonstop2h 15m

Las Vegas Harry Reid Intl

Fri 5/8

7:30 am-10:52 am

Nonstop2h 22m

$84

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 6/15

10:18 am-11:35 am

Nonstop2h 17m

Las Vegas Harry Reid Intl

Fri 6/19

6:10 am-9:28 am

Nonstop2h 18m

$87

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 5/4

11:42 am-12:57 pm

Nonstop2h 15m

Las Vegas Harry Reid Intl

Fri 5/8

7:30 am-10:52 am

Nonstop2h 22m

$89

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 5/18

11:42 am-12:57 pm

Nonstop2h 15m

Las Vegas Harry Reid Intl

Fri 5/22

6:15 am-9:34 am

Nonstop2h 19m

$91

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 6/8

10:18 am-11:35 am

Nonstop2h 17m

Las Vegas Harry Reid Intl

Fri 6/12

6:10 am-9:28 am

Nonstop2h 18m

$92

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 6/15

10:18 am-11:35 am

Nonstop2h 17m

Las Vegas Harry Reid Intl

Fri 6/19

6:10 am-9:28 am

Nonstop2h 18m

$97
Quickest round-trip

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 6/1

10:24 am-11:37 am

Nonstop2h 13m

Las Vegas Harry Reid Intl

Fri 6/12

6:10 am-9:28 am

Nonstop2h 18m

$99

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

$100

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

$118

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Las Vegas from

How to get the cheapest flight ticket from Great Falls to Las Vegas

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Great Falls and Las Vegas?

What is the cheapest month to fly to Las Vegas?

The month of August is, on average, the cheapest month to fly to Las Vegas from Great Falls, with most prices found around $120. The month of July is another great option to travel to Las Vegas, with average flight prices from Great Falls averaging around $130.

What is the cheapest day to depart on your flight to Las Vegas?

Our data shows that Monday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $120. Flights from Great Falls to Las Vegas on a Thursday will generally be more expensive and average around $305. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Las Vegas?

The cheapest time of day to fly to Las Vegas is in the afternoon when flights can be purchased for as low as $132. Flights to Las Vegas are more costly in the morning, with an average ticket price of $174. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Great Falls to Las Vegas Harry Reid Intl flight route?

Fly from Great Falls to Las Vegas Harry Reid Intl for the best Great Falls - Las Vegas Harry Reid Intl flight prices

How far in advance should I book a flight to Las Vegas?

You are more likely to see cheaper flights to Las Vegas from Great Falls when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $212 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from Great Falls for as low as $121 on momondo.

What cabin class options are available on Great Falls to Las Vegas Harry Reid Intl flights?

There is only 1 cabin class available to choose from on Great Falls to Las Vegas Harry Reid Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Great Falls to Las Vegas flights?

No. A direct flight is the cheapest option for a flight between Great Falls to Las Vegas.

How have Great Falls to Las Vegas flight prices changed over time?

When to book flights from Great Falls to Las Vegas

Are you open to changing your travel dates? Check out the ideal times to fly from Great Falls to Las Vegas according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Great Falls to Las Vegas (GTF to LAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Great Falls to Las Vegas

Best Price Found

$228

Fastest flight time

2h 13m

Direct flights

Tue and Sat

Airports in Las Vegas

1 airport
The best flight deal from Great Falls to Las Vegas found on momondo in the last 72 hours is $228
The fastest flight from Great Falls to Las Vegas takes 2h 13m
Direct flights go from Great Falls to Las Vegas on Tuesday and Saturday. There are no airlines offering direct flights.
There is 1 airport in Las Vegas. From Great Falls there are direct flights to Las Vegas Harry Reid Intl (LAS).
Search flight deals

Frequently asked questions about flying from Great Falls to Las Vegas

  • How far is Great Falls to Las Vegas Harry Reid Intl by plane?

    The straight-line distance from Great Falls to Las Vegas Harry Reid Intl is 806.2 mi. 2h 13m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Great Falls Airport to Las Vegas Harry Reid Intl Airport?

    Prices for flights from Great Falls Airport to Las Vegas Harry Reid Intl Airport were last updated today.

  • How many operators does momondo search for flights from Great Falls Airport to Las Vegas Harry Reid Intl Airport?

  • How old do you have to be to fly from Great Falls Airport to Las Vegas Harry Reid Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Great Falls Airport to Las Vegas Harry Reid Intl Airport.

  • What documentation or ID do you need to fly to Las Vegas Harry Reid Intl Airport?

    The travel and health documents you'll need for your trip to Las Vegas Harry Reid Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Las Vegas Harry Reid Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Great Falls to Las Vegas?

  • What is the most popular airline from Great Falls to Las Vegas?

Best airlines flying from Great Falls to Las Vegas

Compare and see reviews for airlines that fly from Great Falls to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $72Free CancellationRating
7.3
706 reviews
Search Allegiant Air flights
Alaska AirlinesPriceFrom $120Free CancellationRating
7.9
12,214 reviews
Search Alaska Airlines flights
DeltaPriceFrom $159Free CancellationRating
7.9
8,407 reviews
Search Delta flights
United AirlinesPriceFrom $162Free CancellationRating
7.4
9,569 reviews
Search United Airlines flights

  • Allegiant Air Flights From Great Falls to Las Vegas

    Allegiant Air flight deals from Great Falls to Las Vegas start from $72 round-trip. Over the 2 Allegiant Air flights for this route in a normal week, average airfare is usually $165 round-trip - but some users have found much cheaper deals with momondo.

Traveling to a place near Las Vegas?

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

Why use momondo?

Why should I use momondo to find a flight deal from Great Falls to Las Vegas?

Finding the right flight to Las Vegas from Great Falls is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Las Vegas quick and easy, saving you time and money.

Can I find flights from Great Falls to Las Vegas with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Las Vegas from Great Falls with this policy.

How can momondo help me find flights from Great Falls to Las Vegas?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Las Vegas from Great Falls.

I’m not ready to book a flight from Great Falls to Las Vegas right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Las Vegas from Great Falls. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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