Best Time to Fly SAT to MIA: On-Time Stats by Hour & Airline
San Antonio International → Miami International
Data through July 2026 · Last updated October 18, 2026
483 flights were scheduled from San Antonio (SAT) to Miami (MIA) in the last 12 months, and 88.7% of those that flew arrived on time, 11.0 points above the US average of 77.6%.
American Airlines was the most punctual of the 2 airlines on the route at 89.8%, while Envoy Air trailed at 83.3%.
September has been the best month (98% on time) and Saturday the weakest day of the week (81%).
0.8% of flights were cancelled, versus 1.8% nationally.
SAT to MIA 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 | 89.8% | 110 min | 1.0% | 399 |
| Envoy Air | 83.3% | 59 min | 0.0% | 84 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SAT to MIA
On-time arrival % by scheduled departure hour (local time), 1,047 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 91.2% | 1.6% | 730 |
| 12pm–1pm | Limited data | 8 | |
| 3pm–4pm | Limited data | 1 | |
| 4pm–5pm | 66.3% | 1.1% | 90 |
| 5pm–6pm | 72.3% | 1.4% | 143 |
| 6pm–7pm | 80.0% | 0.0% | 75 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SAT to MIA
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 | 20 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 87.2% | +1.5 pts | 0.0% | 39 |
| Summer peak (Jun 15 - Aug 15) | 84.2% | -1.5 pts | 1.2% | 173 |
| All other days | 85.7% | — | 1.6% | 815 |
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).