Miami (MIA) to San Diego (SAN): On-Time Performance
Data through May 2026
When you fly MIA to SAN matters as much as anything else about the booking: the route swung from 89% on-time in March 2026 to just 39% in June 2024. Across the full period the route averages 72% on-time against a national 78%. Morning departures also hold up better than evening ones (90% vs 65%), which matters most in the rough months.
- On-time
- 72%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 1.0%
- Flights/day
- 1.6
- last 12 months
- Duration
- 5h 39m
- scheduled
- Distance
- 2,267 mi
Monthly on-time trend
Best time to fly from MIA to SAN
Aim for departures around 8 a.m. (90% on-time); avoid 7 p.m. departures (62%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 72% | 20 min |
| Tuesdaybest | 76% | 12 min |
| Wednesday | 75% | 20 min |
| Thursday | 59% | 25 min |
| Friday | 72% | 14 min |
| Saturday | 75% | 14 min |
| Sunday | 74% | 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 aircraft37%
- Airline operations32%
- National airspace system25%
- Weather6%
Frequently asked questions
- How often are flights from MIA to SAN delayed?
- 28% of MIA–SAN 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 18 minutes.
- What is the best time of day to fly from MIA to SAN?
- Departures around 8 a.m. have the best record (90% on-time), while departures around 7 p.m. have the worst (62%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from MIA to SAN?
- The scheduled MIA–SAN flight time averages 5h 39m over 2,267 miles. Actual arrival times vary — flights on this route land 15+ minutes late 28% of the time.
- How often are MIA to SAN flights cancelled?
- 1% 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 MIA to SAN?
- June 2024 was the roughest month in this dataset, with only 39% of arrivals on time. The best was March 2026 at 89%. If your dates are flexible, that 49-point gap is worth planning around.
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Based on 1,150 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.