San Antonio (SAT) to Dallas (DAL): On-Time Performance
Data through July 2026
San Antonio (SAT) to Dallas (DAL) effectively runs on two schedules. In February 2025, 92% of arrivals were on time; in June 2026 that fell to 68% — a 24-point seasonal swing. Across the full period the route averages 83% on-time against a national 78%. Morning departures also hold up better than evening ones (94% vs 72%), which matters most in the rough months.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 1.4%
- Flights/day
- 7.5
- last 12 months
- Duration
- 1h 11m
- scheduled
- Distance
- 247 mi
Monthly on-time trend
Best time to fly from SAT to DAL
Aim for departures around 8 a.m. (99% on-time); avoid 8 p.m. departures (69%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 82% | 12 min |
| Tuesdaybest | 88% | 10 min |
| Wednesday | 85% | 9 min |
| Thursday | 80% | 12 min |
| Friday | 81% | 11 min |
| Saturday | 86% | 9 min |
| Sunday | 80% | 12 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft58%
- Airline operations15%
- National airspace system23%
- Weather4%
Frequently asked questions
- How often are flights from SAT to DAL delayed?
- 17% of SAT–DAL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 11 minutes.
- What is the best time of day to fly from SAT to DAL?
- Departures around 8 a.m. have the best record (99% on-time), while departures around 8 p.m. have the worst (69%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SAT to DAL?
- The scheduled SAT–DAL flight time averages 1h 11m over 247 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are SAT to DAL flights cancelled?
- 1.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from SAT to DAL?
- June 2026 was the roughest month in this dataset, with only 68% of arrivals on time. The best was February 2025 at 92%. If your dates are flexible, that 24-point gap is worth planning around.
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Based on 5,663 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.