Which departure time was most reliable for SJC to SAN?
Among qualifying SJC-to-SAN departure window results, Early morning had the highest on-time rate: 87.3% of 1,105 flights. Night was lowest at 56.3% across 103 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 1,105 | 87.3% | 4.9% | 0.9% |
| Late morning | 1,131 | 74.1% | 13.2% | 0.7% |
| Afternoon | 1,384 | 68.6% | 16.6% | 0.9% |
| Evening | 1,256 | 60.0% | 22.9% | 1.4% |
| Night | 103 | 56.3% | 26.2% | 2.9% |
Which weekday was most reliable for SJC to SAN?
Among qualifying SJC-to-SAN weekday results, Tuesday had the highest on-time rate: 83.6% of 685 flights. Friday was lowest at 59.9% across 793 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 787 | 70.4% | 14.6% | 0.9% |
| Tuesday | 685 | 83.6% | 8.8% | 1.2% |
| Wednesday | 653 | 80.6% | 11.0% | 1.7% |
| Thursday | 779 | 65.9% | 16.6% | 1.3% |
| Friday | 793 | 59.9% | 23.1% | 0.9% |
| Saturday | 518 | 82.4% | 8.9% | 0.4% |
| Sunday | 764 | 64.8% | 18.7% | 0.8% |
Which airline was most reliable for SJC to SAN?
Among qualifying SJC-to-SAN airline results, Alaska Airlines had the highest on-time rate: 91.8% of 49 flights. Southwest Airlines was lowest at 69.9% across 3,740 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 3,740 | 69.9% | 15.8% | 1.0% |
| SkyWest Airlines | 1,166 | 76.1% | 13.1% | 1.2% |
| Alaska Airlines | 49 | 91.8% | 2.0% | 0.0% |
| Spirit Airlines | 24 | 70.8% | 16.7% | 0.0% |
Which month was most reliable for SJC to SAN?
Among qualifying SJC-to-SAN month results, February 2026 had the highest on-time rate: 79.8% of 307 flights. June 2026 was lowest at 59.4% across 463 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 471 | 77.5% | 11.0% | 0.8% |
| August 2025 | 441 | 72.3% | 13.6% | 0.0% |
| September 2025 | 398 | 77.1% | 11.6% | 1.8% |
| October 2025 | 434 | 65.2% | 17.5% | 1.4% |
| November 2025 | 452 | 70.6% | 14.6% | 2.7% |
| December 2025 | 396 | 63.6% | 22.5% | 1.8% |
| January 2026 | 318 | 79.6% | 10.7% | 1.6% |
| February 2026 | 307 | 79.8% | 12.4% | 0.3% |
| March 2026 | 406 | 76.4% | 13.8% | 1.7% |
| April 2026 | 454 | 76.2% | 11.7% | 0.0% |
| May 2026 | 439 | 65.8% | 18.7% | 0.2% |
| June 2026 | 463 | 59.4% | 20.7% | 0.2% |
What drove SJC to SAN delay minutes?
Late aircraft was the largest recorded SJC-to-SAN delay category, accounting for 40.8% of 62,640 BTS-attributed delay minutes during July 2025–June 2026.
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