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

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 return flight from Great Falls International to Las Vegas Harry Reid International? Find the lowest prices on one-way and return tickets right here.
Las Vegas.R 642 per passenger.Departing Mon, 18 Aug.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Great Falls International on Mon, 18 Aug, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From R 642, select.
Las Vegas.R 644 per passenger.Departing Mon, 13 Oct.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Great Falls International on Mon, 13 Oct, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From R 644, select.
Las Vegas.R 644 per passenger.Departing Fri, 5 Sep.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Great Falls International on Fri, 5 Sep, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From R 644, select.
Las Vegas.R 646 per passenger.Departing Mon, 17 Nov.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Great Falls International on Mon, 17 Nov, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From R 646, select.
Las Vegas.R 2,664 per passenger.Departing Thu, 4 Dec.One-way flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Great Falls International on Thu, 4 Dec, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From R 2,664, select.
Las Vegas.R 3,678 per passenger.Departing Thu, 18 Jun.One-way flight with Delta.Outbound indirect flight with Delta, departs from Great Falls International on Thu, 18 Jun, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From R 3,678, select.
Las Vegas.R 5,226 per passenger.Departing Tue, 29 Jul.One-way flight with United.Outbound indirect flight with United, departs from Great Falls International on Tue, 29 Jul, arriving in Las Vegas Harry Reid International.Price includes taxes and charges.From R 5,226, 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 August.
Jul
from R 5,226
Aug
from R 642
Sep
from R 644
Oct
from R 644
Nov
from R 646
Dec
from R 2,664
Jan
Find prices
Feb
Find prices
Mar
Find prices
Apr
Find prices
May
Find prices
Jun
from R 3,678

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 foundR 639
Cheapest month to flyAugust
Average flight time2 hrs, 14 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 return flight from Great Falls International to Las Vegas Harry Reid International is R 1,367. 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 14 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.
As of July 2025, there are 3 flights per week flying from Great Falls International to Las Vegas Harry Reid International.
The cheapest month to fly from Great Falls International to Las Vegas Harry Reid International is usually October.
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, 13 October 2025.
Yes – the average flight time is 2 hours and 14 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.

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

  • Book a direct flight from Great Falls International Airport to Harry Reid Airport (formerly McCarran Airport) and you'll be in the air for an average of 2 hours 15 minutes.

  • The timezone in Las Vegas is UTC-7, which is one hour behind Great Falls.

  • To ensure you catch your GTF to LAS flight, leave plenty of time to navigate the airport and find your gate. Arriving two hours ahead of international departures and an hour before domestic flights is the general rule.

  • You can expect longer queues in popular months such as August. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a wise move.

  • Allegiant Air has direct flights from Great Falls International Airport to Harry Reid Airport (formerly McCarran Airport). Book with this popular airline, then get ready to discover the sights in Las Vegas — and maybe even more of United States if time allows.

  • Most travellers choose to travel with Allegiant Air on this route.

  • The most punctual carrier that offers GTF to LAS flights is Allegiant Air. Its services land as scheduled 71.43% of the time.

  • If you want to add a stop to your trip, just uncheck 'Direct flights only' when searching for your ticket from Great Falls International Airport to Harry Reid Airport (formerly McCarran Airport). Here are the most popular stopovers between GTF and LAS:

    • Salt Lake City International Airport

    • Denver International Airport

    • Minneapolis-St. Paul International Airport

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

  • The cheapest price we've found for a one-way Great Falls International Airport to Harry Reid Airport (formerly McCarran Airport) flight is R 642. A return fare is currently R 1,367. Depending on the availability when you book, these fares can change.

  • Get cheap tickets from GTF to LAS by booking at least six months ahead. Based on our research, that's the sweet spot for landing a bargain.

  • The cheapest month for flights from Great Falls International Airport to Harry Reid Airport (formerly McCarran Airport) is May. Use the 'Whole month' tool to see the lowest airfares if you have a flexible schedule.

  • Never miss a deal on cheap flights from GTF to LAS by setting up a Price Alert. You'll receive an email or notification through the app when fares go down.

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

Handy information about Great Falls International Airport (GTF)

  • You'll find GTF at 2800 Terminal Drive.

  • Great Falls International Airport scores top marks for its on-time performance. 83.48% of flights that depart GTF land on time.

  • Central Great Falls to Great Falls International Airport is approximately 8 kilometres. Depending on traffic, it'll take you about 10 minutes to get there if you're driving, catching a cab or ride-sharing.

  • The journey on public transport will take about 4 hours.

  • Get your travels off to a leisurely start by staying near GTF. Whether you're taking an early flight from Great Falls International Airport to Harry Reid Airport (formerly McCarran Airport) or just don't like being rushed, these hotels are perfect:

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

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

  • The street address for LAS is 5757 Wayne Newton Boulevard.

  • Harry Reid Airport (formerly McCarran Airport) is roughly 19 kilometres from central Las Vegas. The drive time takes around 15 minutes.

  • If you're using public transport, expect a journey of about 1 hour.

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

  • October is the busiest month for flights from Great Falls International Airport to Harry Reid Airport (formerly McCarran Airport). To steer clear of the crowds, go to Las Vegas in May.

  • Lock in your flight from Great Falls International Airport to Harry Reid Airport (formerly McCarran Airport) for July if you want to go to Las Vegas during its warmest month. Expect temperatures of between 23ºC (73ºF) and 42ºC (108ºF).

  • If you'd rather travel in cooler conditions, look for a cheap ticket from GTF to LAS in January. Average temperatures are between -1ºC (30ºF) and 13ºC (55ºF) then.

Explore more of United States

  • You've visited Las Vegas, now it's time to explore more of United States. Journey about 370 kilometres south-west to Los Angeles to tick off its top attractions. From Griffith Observatory to The Broad and La Brea Tar Pits & Museum, you'll have a packed itinerary ahead.

  • Phoenix is another essential stop in United States and is around 418 kilometres south-east of Las Vegas. No trip is complete without dropping by Desert Botanical Garden, Heard Museum and Papago Park.

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.