Best Time to Fly SJU to DCA: On-Time Stats by Hour & Airline
Luis Munoz Marin International → Ronald Reagan Washington National
Data through July 2026 · Last updated October 18, 2026
364 flights were scheduled from San Juan (SJU) to Washington (DCA) in the last 12 months, and 71.1% of those that flew arrived on time, 6.6 points below the US average of 77.6%.
JetBlue was the only reporting airline with regular flights on this route.
Over 24 months, Friday was the most reliable day (80% on time) and January the worst month (55%).
The cancellation rate was 1.9% (US average 1.8%).
SJU 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 |
|---|---|---|---|---|
| JetBlue | 71.1% | 92 min | 1.9% | 364 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SJU to DCA
On-time arrival % by scheduled departure hour (local time), 729 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5pm–6pm | 76.6% | 1.2% | 240 |
| 6pm–7pm | 71.0% | 1.8% | 488 |
| 7pm–8pm | 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 SJU 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 | 14 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 30 | ||
| Summer peak (Jun 15 - Aug 15) | 62.8% | -13.3 pts | 1.6% | 123 |
| All other days | 76.1% | — | 1.6% | 562 |
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).