San Juan (SJU) to Washington (DCA): On-Time Performance
Data through July 2026
San Juan (SJU) to Washington (DCA) is a thinner route than most in this dataset — 364 departures over the past year, roughly 7 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 72% arrived on time, noticeably below the national average of 78%.
- On-time
- 72%
- arrived <15 min late
- Avg delay
- 26 min
- completed flights
- Cancelled
- 1.6%
- Flights/day
- 1.00
- last 12 months
- Duration
- 3h 59m
- scheduled
- Distance
- 1,554 mi
Monthly on-time trend
Best time to fly from SJU to DCA
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 74% | 28 min |
| Tuesday | 74% | 17 min |
| Wednesday | 75% | 17 min |
| Thursday | 70% | 22 min |
| Fridaybest | 80% | 23 min |
| Saturday | 75% | 31 min |
| Sunday | 59% | 44 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft57%
- Airline operations28%
- National airspace system14%
- Weather1%
Frequently asked questions
- How often are flights from SJU to DCA delayed?
- 28% of SJU–DCA 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 26 minutes.
- How long is the flight from SJU to DCA?
- The scheduled SJU–DCA flight time averages 3h 59m over 1,554 miles. Actual arrival times vary — flights on this route land 15+ minutes late 28% of the time.
- How often are SJU to DCA flights cancelled?
- 1.6% 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 SJU to DCA?
- January 2026 was the roughest month in this dataset, with only 44% of arrivals on time. The best was September 2024 at 100%. If your dates are flexible, that 56-point gap is worth planning around.
Explore related pages
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Based on 760 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.