Best Time to Fly SAT to DCA: On-Time Stats by Hour & Airline
San Antonio International → Ronald Reagan Washington National
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 89.8% of San Antonio (SAT) to Washington (DCA) flights arrived on time (351 scheduled flights). That is 12.1 points above the national average of 77.6%.
American Airlines was the only reporting airline with regular flights on this route.
September has been the best month (97% on time) and Monday the weakest day of the week (86%).
2.3% of flights were cancelled, versus 1.8% nationally.
SAT to DCA 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% | 144 min | 2.3% | 351 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SAT to DCA
On-time arrival % by scheduled departure hour (local time), 502 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 90.4% | 2.2% | 492 |
| 7am–8am | Limited data | 1 | |
| 9am–10am | Limited data | 8 | |
| 10am–11am | 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 SAT to DCA
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 | 4 | ||
| Summer peak (Jun 15 - Aug 15) | 88.2% | -2.5 pts | 5.6% | 108 |
| All other days | 90.7% | — | 1.3% | 383 |
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).