Which departure time was most reliable for SJU to BWI?
Among qualifying SJU-to-BWI departure window results, Early morning had the highest on-time rate: 84.7% of 484 flights. Evening was lowest at 59.4% across 212 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 484 | 84.7% | 5.2% | 2.1% |
| Late morning | 102 | 84.3% | 8.8% | 0.0% |
| Afternoon | 304 | 73.0% | 13.5% | 1.0% |
| Evening | 212 | 59.4% | 21.7% | 3.8% |
| Night | 82 | 64.6% | 22.0% | 9.8% |
Which weekday was most reliable for SJU to BWI?
Among qualifying SJU-to-BWI weekday results, Wednesday had the highest on-time rate: 82.0% of 150 flights. Saturday was lowest at 70.8% across 195 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 170 | 71.8% | 11.2% | 4.1% |
| Tuesday | 149 | 80.5% | 10.7% | 0.7% |
| Wednesday | 150 | 82.0% | 8.7% | 0.0% |
| Thursday | 170 | 80.0% | 11.8% | 0.6% |
| Friday | 167 | 71.3% | 18.6% | 1.8% |
| Saturday | 195 | 70.8% | 10.8% | 4.6% |
| Sunday | 183 | 76.0% | 10.4% | 4.4% |
Which airline was most reliable for SJU to BWI?
Among qualifying SJU-to-BWI airline results, Southwest Airlines had the highest on-time rate: 79.4% of 822 flights. Frontier Airlines was lowest at 65.0% across 157 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 822 | 79.4% | 9.9% | 1.0% |
| Spirit Airlines | 205 | 69.3% | 17.1% | 6.3% |
| Frontier Airlines | 157 | 65.0% | 14.6% | 5.1% |
Which month was most reliable for SJU to BWI?
Among qualifying SJU-to-BWI month results, October 2025 had the highest on-time rate: 91.8% of 61 flights. March 2026 was lowest at 60.6% across 109 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 142 | 69.0% | 16.9% | 1.4% |
| August 2025 | 104 | 80.8% | 7.7% | 1.9% |
| September 2025 | 70 | 82.9% | 5.7% | 0.0% |
| October 2025 | 61 | 91.8% | 4.9% | 1.6% |
| November 2025 | 75 | 82.7% | 6.7% | 1.3% |
| December 2025 | 113 | 83.2% | 9.7% | 0.9% |
| January 2026 | 109 | 73.4% | 10.1% | 9.2% |
| February 2026 | 91 | 62.6% | 16.5% | 5.5% |
| March 2026 | 109 | 60.6% | 19.3% | 5.5% |
| April 2026 | 111 | 67.6% | 18.9% | 0.9% |
| May 2026 | 90 | 78.9% | 8.9% | 0.0% |
| June 2026 | 109 | 88.1% | 7.3% | 0.0% |
What drove SJU to BWI delay minutes?
Late aircraft was the largest recorded SJU-to-BWI delay category, accounting for 45.9% of 15,216 BTS-attributed delay minutes during July 2025–June 2026.
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