Best Time to Fly MIA to SAN: On-Time Stats by Hour & Airline
Miami International → San Diego International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 75.4% of Miami (MIA) to San Diego (SAN) flights arrived on time (649 scheduled flights). That is 2.2 points below the national average of 77.6%.
American Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (78% on time) and September the worst month (49%).
The cancellation rate was 1.1% (US average 1.8%).
MIA to SAN on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| American Airlines | 75.4% | 56 min | 1.1% | 649 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MIA to SAN
On-time arrival % by scheduled departure hour (local time), 1,211 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 89.6% | 0.5% | 185 |
| 9am–10am | 89.7% | 1.4% | 148 |
| 4pm–5pm | 74.2% | 0.8% | 130 |
| 5pm–6pm | Limited data | 1 | |
| 6pm–7pm | Limited data | 19 | |
| 7pm–8pm | 63.0% | 0.6% | 519 |
| 8pm–9pm | 68.5% | 1.8% | 165 |
| 9pm–10pm | 82.0% | 2.3% | 44 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MIA to SAN
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 28 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 80.6% | +6.7 pts | 2.7% | 73 |
| Summer peak (Jun 15 - Aug 15) | 66.5% | -7.5 pts | 0.6% | 171 |
| All other days | 73.9% | — | 0.8% | 939 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).