AZA to MSO flight delays & on-time performance
Nonstop flights from Mesa Gateway Airport to Missoula Montana Airport · 948 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at AZA or MSO right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Phoenix (AZA) to Missoula (MSO) arrived on time 85% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0% were cancelled, and 5% arrived an hour or more late.
- Allegiant Air is the only airline reporting nonstop flights on this route.
- Departures scheduled around 8am did best (93% on time); around 4pm did worst (65%).
- Sunday was the most reliable day to fly (90% on time) and Saturday the least (73%).
- The largest source of delay minutes was extreme weather (40%).
Which airline is most on time from AZA to MSO?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Allegiant Air | 85% | 0.0% | 11 min | 5.0% | 140 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am92%24 flights
- 8am93%15 flights
- 11am87%31 flights
- 3pm91%23 flights
- 4pm65%20 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday100%0.0% cancelled
- Tuesday84%0.0% cancelled
- Wednesday50%0.0% cancelled
- Thursday84%0.0% cancelled
- Friday50%0.0% cancelled
- Saturday73%0.0% cancelled
- Sunday90%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Extreme weather40%
- Airline (crew, maintenance, cleaning, fueling)31%
- Late-arriving aircraft19%
- Air traffic control & airport congestion10%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
No cancellation causes recorded in this period.
AZA to MSO: common questions
- How often are AZA to MSO flights on time?
- 85% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Phoenix to Missoula cancelled?
- 0.0% of scheduled flights were cancelled (0 of 140).
- How long are typical delays?
- Across all flights the average arrival delay was 11 min (early arrivals count as zero). Flights that were late arrived 67 min behind schedule on average, and 5.0% of flights were an hour or more late.
- How long is taxi time at AZA?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: MSO to AZA — 75% on time
More flights from Phoenix
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: AZA → MSO, nonstop flights by US airlines that report to the DOT. How we calculate this.