Missoula (MSO) departure delays
4,955 departures · 14 routes · January 2025 – August 2026
84.13%
Left on time
Within 15 minutes of schedule
0.83%
Cancelled
Share of departures
91 min
When late, late by
Average delayed departure
#23
Rank
Among graded US airports
What the record says about MSO
Departures from MSO leave close to schedule more often than most airports in the record. An airport this punctual is usually one with spare capacity in its runway slots.
The airlines flying from here are not equally affected. Delta Air Lines left on time 18.3 points more often than Allegiant Air from the same airport — which is the clearest evidence available that a delayed departure is not purely the airport's fault.
Which airlines run best out of MSO
| Airline | Departures | On time |
|---|---|---|
| Delta Air Lines | 956 | 90.2% |
| SkyWest Airlines | 1,523 | 82.8% |
| United Airlines | 822 | 82.7% |
| Alaska Airlines | 533 | 80.3% |
| Envoy Air | 636 | 78.9% |
| Allegiant Air | 290 | 71.9% |
Routes out of MSO
Common questions
How bad are delays at Missoula (MSO)?
84.13% of departures from MSO left within 15 minutes of schedule across 4,955 flights. That is better than most airports in this record.
Which airline is most punctual from MSO?
Delta Air Lines, at 90.2% on time from this airport. The least punctual was Allegiant Air at 71.9%.
How often are flights from MSO cancelled?
0.83% of scheduled departures did not operate.