Phoenix (PHX) to Miami (MIA): On-Time Performance
Data through July 2026
Phoenix (PHX) to Miami (MIA) effectively runs on two schedules. In September 2024, 92% of arrivals were on time; in July 2026 that fell to 51% — a 41-point seasonal swing. Across the full period the route averages 81% on-time against a national 78%.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 0.8%
- Flights/day
- 5.0
- last 12 months
- Duration
- 4h 21m
- scheduled
- Distance
- 1,972 mi
Monthly on-time trend
Best time to fly from PHX to MIA
Aim for departures around 12 a.m. (92% on-time); avoid 4 p.m. departures (74%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 14 min |
| Tuesdaybest | 86% | 9 min |
| Wednesdaybest | 86% | 11 min |
| Thursday | 79% | 12 min |
| Friday | 78% | 14 min |
| Saturday | 85% | 11 min |
| Sunday | 76% | 18 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft34%
- Airline operations45%
- National airspace system20%
- Weather1%
Frequently asked questions
- How often are flights from PHX to MIA delayed?
- 19% of PHX–MIA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 13 minutes.
- What is the best time of day to fly from PHX to MIA?
- Departures around 12 a.m. have the best record (92% on-time), while departures around 4 p.m. have the worst (74%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from PHX to MIA?
- The scheduled PHX–MIA flight time averages 4h 21m over 1,972 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are PHX to MIA flights cancelled?
- 0.8% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from PHX to MIA?
- July 2026 was the roughest month in this dataset, with only 51% of arrivals on time. The best was September 2024 at 92%. If your dates are flexible, that 41-point gap is worth planning around.
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Based on 3,846 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.