Allegiant AirDepart09:22
Thu, Nov 12GTF → LAS
3h 48m · 1 stop
$243one way, per person
View deal
- Cheapest fare
- $243
- Cheapest month
- November
- Direct flights
- Not recently
- Quickest trip
- 3h 48m
Allegiant Air · Thu, Nov 12
from $243
Usually 1+ stop
1,300 km
Get a price alert
We'll email you when Great Falls → Las Vegas drops to your price. It's free, and you can stop any time.
Today's cheapest fare is $243. We'll send one email to confirm. See our privacy policy.
Cheapest month to fly from Great Falls to Las Vegas
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in November 2026
The lowest fares we've seen for each day, cheapest first.
Allegiant AirPlan the rest of your trip to Las Vegas
Where to stay, what to do and getting around, from our travel partners.
About flights from Great Falls to Las Vegas
Great Falls (GTF) and Las Vegas (LAS) are about 1,300 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 3h 48m. Over the next few months, one-way fares start from $243, and November 2026 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from Great Falls to Las Vegas?
The cheapest one-way fare we've seen recently is $243 with Allegiant Air, departing Thursday, November 12, 2026.
What is the cheapest month to fly from Great Falls to Las Vegas?
November 2026 currently has the lowest fares, from $243 one way.
Are there direct flights from Great Falls to Las Vegas?
We haven't seen direct fares recently, so most journeys include at least one stop.
How long is the flight from Great Falls to Las Vegas?
The quickest journey we've seen takes about 3h 48m. Great Falls and Las Vegas are around 1,300 km apart.
Which airlines fly from Great Falls to Las Vegas?
Recent fares on this route were with Allegiant Air.
More cheap flights from Great Falls
- Great Falls to Phoenixfrom $141
- Great Falls to Albuquerquefrom $184
- Great Falls to Denverfrom $190
- Great Falls to Bostonfrom $236
- Great Falls to Chicagofrom $260
- Great Falls to Grand Islandfrom $260
- Great Falls to Fresnofrom $273
- Great Falls to Cheyennefrom $316
- Great Falls to Dallasfrom $321
- Great Falls to Nashvillefrom $325
- Great Falls to Minneapolisfrom $335
- Great Falls to Eugenefrom $342