Best Time to Fly DCA to SAT: On-Time Stats by Hour & Airline
Ronald Reagan Washington National → San Antonio International
Data through July 2026 · Last updated October 18, 2026
350 flights were scheduled from Washington (DCA) to San Antonio (SAT) in the last 12 months, and 56.4% of those that flew arrived on time, 21.2 points below the US average of 77.6%.
American Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Saturday was the most reliable day (65% on time) and August the worst month (30%).
The cancellation rate was 2.0% (US average 1.8%).
DCA 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 |
|---|---|---|---|---|
| American Airlines | 56.4% | 82 min | 2.0% | 350 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DCA to SAT
On-time arrival % by scheduled departure hour (local time), 502 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 1pm–2pm | Limited data | 1 | |
| 2pm–3pm | Limited data | 11 | |
| 4pm–5pm | Limited data | 17 | |
| 5pm–6pm | 53.9% | 2.5% | 120 |
| 6pm–7pm | 50.9% | 1.7% | 58 |
| 7pm–8pm | 54.5% | 1.4% | 294 |
| 8pm–9pm | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DCA 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) | Limited data | 7 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 3 | ||
| Summer peak (Jun 15 - Aug 15) | 39.8% | -16.9 pts | 4.6% | 108 |
| All other days | 56.8% | — | 1.3% | 384 |
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).