GTF to LAS flight delays
Great Falls, MT (GTF) Las Vegas, NV (LAS) · 810 miles
220 flights · July 2024 – July 2026 · US Bureau of Transportation Statistics
81.28%
Arrived on time
Within 15 minutes of schedule
0.45%
Cancelled
Share of scheduled flights
134 min
When late, late by
Average across delayed arrivals
26 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 134 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
The two directions do not behave alike. LAS to GTF arrives on time 8.7 points more often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
This route does worse than its own airport. GTF as a whole runs 8.4 points more punctual than these flights, which points at something specific to the route — the time of day it is scheduled, or the aircraft that feed it — rather than the airport.
Only Allegiant Air flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Which airline should you fly on this route?
Over July 2024 – July 2026, Allegiant Air arrived on time most often on GTF to LAS. Flights ran closest to schedule in March and worst in October.
Every airline on GTF to LAS
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Allegiant Air | 220 | 81.28% | 0.45% | 134 min | B |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
LAS to GTF Las Vegas back to Great Falls 90% on time AOther routes from Great Falls
Common questions
Are flights from Great Falls to Las Vegas usually delayed?
81.28% of flights on the GTF to LAS route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from Great Falls to Las Vegas?
Only Allegiant Air appears in the published record on this route, with 220 flights and 81.28% arriving on time.
How often are GTF to LAS flights cancelled?
0.45% of scheduled flights did not operate — about 5 in every thousand. That is in the normal range.
When GTF to LAS flights are late, how late are they?
About 134 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on GTF to LAS during July 2024 – July 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →