Best Time to Fly DAL to SAT: On-Time Stats by Hour & Airline
Dallas Love Field → San Antonio International
Data through July 2026 · Last updated October 18, 2026
2,742 flights were scheduled from Dallas (DAL) to San Antonio (SAT) in the last 12 months, and 77.3% of those that flew arrived on time, in line with the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
October has been the best month (88% on time) and Sunday the weakest day of the week (74%).
1.1% of flights were cancelled, versus 1.8% nationally.
DAL to SAT 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 |
|---|---|---|---|---|
| Southwest Airlines | 77.3% | 58 min | 1.1% | 2,742 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DAL to SAT
On-time arrival % by scheduled departure hour (local time), 5,465 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 95.7% | 0.7% | 423 |
| 7am–8am | 94.1% | 1.6% | 499 |
| 8am–9am | 97.0% | 1.5% | 267 |
| 9am–10am | 92.9% | 2.4% | 247 |
| 10am–11am | 90.7% | 1.7% | 296 |
| 11am–12pm | 80.9% | 1.6% | 255 |
| 12pm–1pm | 82.9% | 1.3% | 397 |
| 1pm–2pm | 82.8% | 1.1% | 435 |
| 2pm–3pm | 82.3% | 0.3% | 330 |
| 3pm–4pm | 75.7% | 1.1% | 284 |
| 4pm–5pm | 69.0% | 1.0% | 395 |
| 5pm–6pm | 68.6% | 1.2% | 248 |
| 6pm–7pm | 68.7% | 0.5% | 373 |
| 7pm–8pm | 68.2% | 0.6% | 351 |
| 8pm–9pm | 66.1% | 1.8% | 279 |
| 9pm–10pm | 60.5% | 1.8% | 222 |
| 10pm–11pm | 54.3% | 1.2% | 164 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DAL to SAT
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) | 82.1% | +1.0 pts | 0.0% | 84 |
| Christmas & New Year (Dec 20 - Jan 3) | 79.0% | -2.1 pts | 2.1% | 190 |
| Summer peak (Jun 15 - Aug 15) | 72.8% | -8.4 pts | 0.9% | 872 |
| All other days | 81.2% | — | 1.2% | 4,319 |
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).