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Phoenix (PHX) to Miami (MIA): On-Time Performance

Data through May 2026

Phoenix (PHX) to Miami (MIA) effectively runs on two schedules. In September 2024, 92% of arrivals were on time; in August 2024 that fell to 71% — a 21-point seasonal swing. Across the full period the route averages 83% on-time against a national 78%.

On-time
83%
arrived <15 min late
Avg delay
12 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

Monthly on-time percentage for PHX to MIA flights50%75%100%June 2024: 76% on-time (124 flights)76Jun 2024July 2024: 73% on-time (151 flights)73August 2024: 71% on-time (129 flights)71September 2024: 92% on-time (124 flights)92Sep 2024October 2024: 89% on-time (150 flights)89November 2024: 90% on-time (155 flights)90December 2024: 84% on-time (166 flights)84Dec 2024January 2025: 88% on-time (161 flights)88February 2025: 86% on-time (152 flights)86March 2025: 82% on-time (185 flights)82Mar 2025April 2025: 81% on-time (177 flights)81May 2025: 91% on-time (160 flights)91June 2025: 86% on-time (150 flights)86Jun 2025July 2025: 77% on-time (154 flights)77August 2025: 78% on-time (128 flights)78September 2025: 88% on-time (99 flights)88Sep 2025October 2025: 84% on-time (147 flights)84November 2025: 76% on-time (143 flights)76December 2025: 83% on-time (160 flights)83Dec 2025January 2026: 80% on-time (159 flights)80February 2026: 86% on-time (155 flights)86March 2026: 71% on-time (187 flights)71Mar 2026April 2026: 90% on-time (177 flights)90May 2026: 80% on-time (173 flights)80

Best time to fly from PHX to MIA

Aim for departures around 12 a.m. (92% on-time); avoid 12 p.m. departures (75%).

On-time percentage by scheduled departure hour, PHX to MIA7 a.m.: 89% on-time (65 flights)78 a.m.: 79% on-time (321 flights)89 a.m.: 89% on-time (408 flights)910 a.m.: 78% on-time (27 flights)1011 a.m.: 88% on-time (75 flights)1112 p.m.: 75% on-time (415 flights)121 p.m.: 76% on-time (224 flights)132 p.m.: 78% on-time (198 flights)143 p.m.: 81% on-time (182 flights)154 p.m.: 78% on-time (334 flights)165 p.m.: 85% on-time (41 flights)179 p.m.: 83% on-time (36 flights)2110 p.m.: 86% on-time (531 flights)2211 p.m.: 86% on-time (693 flights)23scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday80%13 min
Tuesday86%9 min
Wednesdaybest87%10 min
Thursday81%12 min
Friday81%12 min
Saturday86%13 min
Sunday78%16 min

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

  • Late-arriving aircraft31%
  • Airline operations47%
  • National airspace system20%
  • Weather1%

Frequently asked questions

How often are flights from PHX to MIA delayed?
17% of PHX–MIA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 12 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 12 p.m. have the worst (75%). 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 17% of the time.
How often are PHX to MIA flights cancelled?
0.8% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
What is the worst month to fly from PHX to MIA?
August 2024 was the roughest month in this dataset, with only 71% of arrivals on time. The best was September 2024 at 92%. If your dates are flexible, that 21-point gap is worth planning around.

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Based on 3,666 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.