MSO to AZA flight delays & on-time performance
Nonstop flights from Missoula Montana Airport to Mesa Gateway Airport · 948 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at MSO or AZA right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Missoula (MSO) to Phoenix (AZA) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0% were cancelled, and 8% arrived an hour or more late.
- Allegiant Air is the only airline reporting nonstop flights on this route.
- Departures scheduled around 11am did best (87% on time); around 7pm did worst (78%).
- Sunday was the most reliable day to fly (82% on time) and Saturday the least (45%).
- The largest source of delay minutes was late-arriving aircraft (58%).
Which airline is most on time from MSO to AZA?
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 | 75% | 0.0% | 18 min | 7.9% | 140 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 11am87%31 flights
- 3pm81%31 flights
- 7pm78%23 flights
- 8pm54%13 flights
- 9pm46%13 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday100%0.0% cancelled
- Tuesday80%0.0% cancelled
- Wednesday50%0.0% cancelled
- Thursday75%0.0% cancelled
- Friday0%0.0% cancelled
- Saturday45%0.0% cancelled
- Sunday82%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.
- Late-arriving aircraft58%
- Air traffic control & airport congestion23%
- Airline (crew, maintenance, cleaning, fueling)16%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
No cancellation causes recorded in this period.
MSO to AZA: common questions
- How often are MSO to AZA flights on time?
- 75% 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 Missoula to Phoenix cancelled?
- 0.0% of scheduled flights were cancelled (0 of 140).
- How long are typical delays?
- Across all flights the average arrival delay was 18 min (early arrivals count as zero). Flights that were late arrived 68 min behind schedule on average, and 7.9% of flights were an hour or more late.
- How long is taxi time at MSO?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: AZA to MSO — 85% on time
More flights from Missoula
More flights to Phoenix
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: MSO → AZA, nonstop flights by US airlines that report to the DOT. How we calculate this.