Washington (DCA) to San Antonio (SAT): On-Time Performance
Data through May 2026
Washington (DCA) to San Antonio (SAT) is a thinner route than most in this dataset — 351 departures over the past year, roughly 7 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 54% arrived on time, noticeably below the national average of 78%.
- On-time
- 54%
- arrived <15 min late
- Avg delay
- 41 min
- completed flights
- Cancelled
- 1.6%
- Flights/day
- 0.96
- last 12 months
- Duration
- 3h 46m
- scheduled
- Distance
- 1,380 mi
Monthly on-time trend
Best time to fly from DCA to SAT
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 61% | 32 min |
| Tuesday | 57% | 30 min |
| Wednesday | 56% | 36 min |
| Thursday | 50% | 46 min |
| Friday | 48% | 44 min |
| Saturdaybest | 65% | 23 min |
| Sunday | 40% | 76 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft61%
- Airline operations22%
- National airspace system14%
- Weather3%
Frequently asked questions
- How often are flights from DCA to SAT delayed?
- 46% of DCA–SAT flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 41 minutes.
- How long is the flight from DCA to SAT?
- The scheduled DCA–SAT flight time averages 3h 46m over 1,380 miles. Actual arrival times vary — flights on this route land 15+ minutes late 46% of the time.
- How often are DCA to SAT flights cancelled?
- 1.6% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from DCA to SAT?
- August 2025 was the roughest month in this dataset, with only 30% of arrivals on time. The best was October 2025 at 77%. If your dates are flexible, that 47-point gap is worth planning around.
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Based on 442 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.