Skyscanner

Cheap flights from Great Falls International to Las Vegas Harry Reid International

Travelers and cabin class

Compare Great Falls International to Las Vegas Harry Reid International flight deals

Find the cheapest month or even day of the year to fly to Las Vegas Harry Reid International

Book the best Las Vegas Harry Reid International fare with no extra fees

Flight deals from Great Falls International to Las Vegas Harry Reid International

Looking for a cheap last-minute deal or the best round-trip flight from Great Falls International to Las Vegas Harry Reid International? Find the lowest prices on one-way and round-trip tickets right here.
Las Vegas.C$160 per passenger.Departing Mon, Mar 17, returning Mon, Mar 24.Round-trip flight with Allegiant Air.Outbound direct flight with Allegiant Air departing from Great Falls International on Mon, Mar 17, arriving in Las Vegas Harry Reid International.Inbound direct flight with Allegiant Air departing from Las Vegas Harry Reid International on Mon, Mar 24, arriving in Great Falls International.Price includes taxes and charges.From C$160, select.
Las Vegas.C$161 per passenger.Departing Mon, Apr 14, returning Fri, Apr 18.Round-trip flight with Allegiant Air.Outbound direct flight with Allegiant Air departing from Great Falls International on Mon, Apr 14, arriving in Las Vegas Harry Reid International.Inbound direct flight with Allegiant Air departing from Las Vegas Harry Reid International on Fri, Apr 18, arriving in Great Falls International.Price includes taxes and charges.From C$161, select.
Las Vegas.C$174 per passenger.Departing Fri, Mar 21, returning Fri, Apr 11.Round-trip flight with Allegiant Air.Outbound direct flight with Allegiant Air departing from Great Falls International on Fri, Mar 21, arriving in Las Vegas Harry Reid International.Inbound direct flight with Allegiant Air departing from Las Vegas Harry Reid International on Fri, Apr 11, arriving in Great Falls International.Price includes taxes and charges.From C$174, select.
Las Vegas.C$175 per passenger.Departing Fri, May 9, returning Fri, May 23.Round-trip flight with Allegiant Air.Outbound direct flight with Allegiant Air departing from Great Falls International on Fri, May 9, arriving in Las Vegas Harry Reid International.Inbound direct flight with Allegiant Air departing from Las Vegas Harry Reid International on Fri, May 23, arriving in Great Falls International.Price includes taxes and charges.From C$175, select.
Las Vegas.C$186 per passenger.Departing Fri, Jul 18, returning Fri, Aug 1.Round-trip flight with Allegiant Air.Outbound direct flight with Allegiant Air departing from Great Falls International on Fri, Jul 18, arriving in Las Vegas Harry Reid International.Inbound direct flight with Allegiant Air departing from Las Vegas Harry Reid International on Fri, Aug 1, arriving in Great Falls International.Price includes taxes and charges.From C$186, select.
Las Vegas.C$188 per passenger.Departing Fri, May 2, returning Fri, Aug 1.Round-trip flight with Allegiant Air.Outbound direct flight with Allegiant Air departing from Great Falls International on Fri, May 2, arriving in Las Vegas Harry Reid International.Inbound direct flight with Allegiant Air departing from Las Vegas Harry Reid International on Fri, Aug 1, arriving in Great Falls International.Price includes taxes and charges.From C$188, select.
Las Vegas.C$224 per passenger.Departing Fri, Jul 4, returning Mon, Jul 14.Round-trip flight with Allegiant Air.Outbound direct flight with Allegiant Air departing from Great Falls International on Fri, Jul 4, arriving in Las Vegas Harry Reid International.Inbound direct flight with Allegiant Air departing from Las Vegas Harry Reid International on Mon, Jul 14, arriving in Great Falls International.Price includes taxes and charges.From C$224, select.
Las Vegas.C$340 per passenger.Departing Fri, Aug 8, returning Mon, Aug 11.Round-trip flight with Allegiant Air.Outbound direct flight with Allegiant Air departing from Great Falls International on Fri, Aug 8, arriving in Las Vegas Harry Reid International.Inbound direct flight with Allegiant Air departing from Las Vegas Harry Reid International on Mon, Aug 11, arriving in Great Falls International.Price includes taxes and charges.From C$340, select.

Find the cheapest month to fly from Great Falls International to Las Vegas Harry Reid International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Great Falls International to Las Vegas Harry Reid International flights are currently cheapest in March.
Mar
from C$160
Apr
from C$161
May
from C$175
Jun
Find prices
Jul
from C$224
Aug
from C$340
Sep
Find prices
Oct
from C$628
Nov
Find prices
Dec
Find prices
Jan
Find prices
Feb
Find prices

Direct flights from Great Falls International to Las Vegas Harry Reid International

Great Falls International to Las Vegas Harry Reid International: Alternative routes

Compare routes from Great Falls International to Las Vegas below. You may find an airport to fly into that's cheaper, faster, or easier than Las Vegas Harry Reid International.

Great Falls to Las Vegas: Flight information

The things to know before you go.
Cheapest flight foundC$160
Cheapest month to flyMarch
Average flight time2 hrs, 17 mins
Most popular airlineAllegiant Air
Average flights per week3

Finding cheap flights from Great Falls International to Las Vegas Harry Reid International: Frequently asked questions

The best price we found for a round-trip flight from Great Falls International to Las Vegas Harry Reid International is C$160. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 17 minutes is the average flight time from Great Falls International to Las Vegas Harry Reid International.
Allegiant Air flies direct from Great Falls International to Las Vegas Harry Reid International.
There are 3 flights per week flying from Great Falls International to Las Vegas Harry Reid International, as of March 2025.
The cheapest month to fly from Great Falls International to Las Vegas Harry Reid International is usually March 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Great Falls International Airport to Las Vegas Harry Reid International Airport on Monday, March 17, 2025.
Yes – the average flight time is 2 hours and 17 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Las Vegas Harry Reid International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Las Vegas is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Allegiant Air offers the cheapest flight tickets to Las Vegas Harry Reid International.

Flying from Great Falls International Airport (GTF) to Harry Reid Airport (formerly McCarran Airport) (LAS): what you need to know

  • 2 hours 15 minutes is the average length of a direct flight from Great Falls International Airport to Harry Reid Airport (formerly McCarran Airport). Las Vegas is 1 hour behind Great Falls and operates on the UTC-7 timezone.

  • Delays at security and check-in are likely if you're flying during high season, so allow even more breathing space. A good general rule for peak periods? Arrive up to four hours ahead for international flights and at least two hours for domestic departures.

  • If you want to break up your flight from Great Falls International Airport to Harry Reid Airport (formerly McCarran Airport), think about adding a stopover. Just uncheck 'Direct flights only' and find a destination that appeals to you. The top stopovers on the GTF - LAS route include:

    • Denver International Airport

    • Minneapolis-St. Paul International Airport

    • Salt Lake City International Airport

How to find the cheapest flights from Great Falls International Airport (GTF) to Harry Reid Airport (formerly McCarran Airport) (LAS)

  • C$75 is currently the best price for a one-way ticket from Great Falls International Airport to Harry Reid Airport (formerly McCarran Airport). A return flight starts from C$160. These prices can change depending on availability and demand.

  • Score cheap flight tickets from GTF to LAS by booking 9 months ahead. According to our research, that's the sweet spot for landing a bargain.

  • May is the cheapest month for flight tickets from Great Falls International Airport to Harry Reid Airport (formerly McCarran Airport). If you need to travel during a different time of year, the 'Whole month' tool will give you the lowest prices across every month.

  • Sign into your online account or use the app to set up a Price Alert. We'll get in touch right away if there's a better deal on this route. It's easy to do, and it'll save you time searching for cheap flight tickets from GTF to LAS every day.

  • Use filters to find the ideal journey for you. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Great Falls International Airport to Harry Reid Airport (formerly McCarran Airport), use the 'Sort by' function. You can also filter by airline, arrival and departure times, and journey duration.

Handy information about Great Falls International Airport (GTF)

  • Traveling from central Great Falls to Great Falls International Airport takes about 3 hours and 59 minutes by public transport. If you ride-share, drive or get a cab, you'll cover the 8 kilometres in 12 minutes or so, depending on traffic conditions.

  • Want a leisurely start to your vacation? Stay near GTF. Whether you're boarding an early flight from Great Falls International Airport to Harry Reid Airport (formerly McCarran Airport) or just don't want to be rushed, these hotels are ideal:

Arriving at Harry Reid Airport (formerly McCarran Airport) (LAS)

Getting from Harry Reid Airport (formerly McCarran Airport) (LAS) to central Las Vegas

  • Harry Reid Airport (formerly McCarran Airport) is approximately 19 kilometres from central Las Vegas. With your own car rental or if you take a cab, the drive is about 15 minutes.

  • Traveling on public transport takes roughly 1 hour.

When to fly to Harry Reid Airport (formerly McCarran Airport) (LAS)

  • The quietest month for a flight from Great Falls International Airport to Harry Reid Airport (formerly McCarran Airport) is May, while October is the busiest. Choose the ideal time to visit Las Vegas based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • Book your flight from Great Falls International Airport to Harry Reid Airport (formerly McCarran Airport) for July if you want to explore Las Vegas during its warmest month. You can expect temperatures of between 23ºC and 42ºC.

  • If you want cooler conditions, search for a cheap ticket from GTF to LAS in January. Average temperatures are between -1ºC and 13ºC then.

More about Las Vegas

  • If you're looking for somewhere to lay your head, you can find the most popular stays in Las Vegas right here. Browse these options after locking in your flight from GTF to LAS:

  • There are so many things to explore in this city it can be hard to know where to begin. Las Vegas Strip, Fountains of Bellagio and Fremont Street Experience are top sights which should be on any well-planned Las Vegas itinerary.

Complete your Las Vegas trip with hotels and a car rental

  • Comparing flights is not our only party trick. Once you've booked your cheap ticket to Harry Reid Airport (formerly McCarran Airport), explore our car rental offers that'll give you the freedom to travel around at your own pace. Next, have a look at our exclusive rates for hotels to find the perfect Las Vegas stay.

More travel options

Cheap flights from Montreal to San JuanCheap tickets from Calgary to LisbonFlights from Toronto to BudapestPlane tickets from Toronto to VeniceRound-trip flights from Toronto Pearson International to ThiruvananthapuramTickets from Cancun to Montreal Pierre Elliott TrudeauCheap flights from Ottawa to LondonCheap round-trip tickets from Montreal to SeoulRound-trip tickets from Montreal Pierre Elliott Trudeau to Ahmedabad
Tickets from Toronto to Sao Paulo GuarulhosFlights from Toronto Pearson International to VadodaraCheap round-trip tickets from Toronto to GlasgowCheap tickets from Ottawa to Fort LauderdaleRound-trip tickets from Vancouver International to DubaiFlights from Calgary to SeattleTickets from Calgary to AmritsarRound-trip tickets from Montreal to Bangkok SuvarnabhumiCheap flights from Calgary to Mexico City
Cheap round-trip tickets from Toronto to Belgrade Nikola TeslaRound-trip tickets from Edmonton International to New YorkPlane tickets from Beirut to Montreal Pierre Elliott TrudeauRound-trip tickets from Vancouver to SeattleCheap flights from Calgary to FrankfurtPlane tickets from Toronto to San Jose CaboPlane tickets from Calgary to HyderabadCheap flights from Calgary to SydneyCheap round-trip flights from Edmonton International to Amsterdam Schiphol
Cheap round-trip flights from Buffalo Niagara to Indira Gandhi International Plane tickets from Toronto Pearson International to St John'sFlights from Saskatoon to Indira Gandhi International
Hotels in Las VegasHotels by SpringHill Suites in Las VegasHampton hotels in Las VegasMarriott Las Vegas hotel dealsConrad hotels in Las VegasHotels by Courtyard in Las VegasJW Marriott Las Vegas hotel dealsHotels by MGM in Las VegasFairfield Inn & Suites hotels in Las Vegas
Hotels in ParadiseHotel deals in HendersonBook hotels in Central Las VegasCheap hotel deals in Downtown Las VegasCheap hotel deals in North Las VegasHilton Grand Vacations Las Vegas hotel dealsHotels by DoubleTree in Las Vegas
Last-minute flightsRound-trip tickets from MontanaCheap round-trip flights from United StatesPlane tickets to United StatesRound-trip tickets to Las Vegas Harry Reid InternationalFlights to NevadaPlane tickets from Great Falls InternationalCheap tickets from Great Falls International to Nevada
Cheap car rental at Las Vegas Harry Reid International AirportCheap car rental in United StatesCar rental in Downtown Las VegasCar rental in North Las VegasCar rental in ParadiseCar rental in HendersonCar rental in Central Las Vegas

Plan the rest of your trip from Great Falls to Las Vegas

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.