Washington (DCA) to San Antonio (SAT): On-Time Performance
Data through July 2026
Washington (DCA) to San Antonio (SAT) is a thinner route than most in this dataset — 350 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
- 42 min
- completed flights
- Cancelled
- 2.0%
- 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
Departure time makes little difference on this route — on-time rates stay within a few points across the day.
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 56% | 41 min |
| Tuesday | 57% | 30 min |
| Wednesday | 58% | 34 min |
| Thursday | 51% | 48 min |
| Friday | 47% | 47 min |
| Saturdaybest | 65% | 23 min |
| Sunday | 41% | 71 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft62%
- Airline operations21%
- National airspace system14%
- Weather3%
Frequently asked questions
- How often are flights from DCA to SAT delayed?
- 47% of DCA–SAT 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 42 minutes.
- What is the best time of day to fly from DCA to SAT?
- Departures around 7 p.m. have the best record (54% on-time), while departures around 6 p.m. have the worst (51%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- 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 47% of the time.
- How often are DCA to SAT flights cancelled?
- 2% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above 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.
Explore related pages
More routes from DCA
Other ways to fly to San Antonio (SAT)
Related guides
Based on 502 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.