Which departure time was most reliable for SJC to PDX?
Among qualifying SJC-to-PDX departure window results, Early morning had the highest on-time rate: 95.6% of 361 flights. Night was lowest at 55.4% across 92 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 361 | 95.6% | 1.7% | 0.0% |
| Late morning | 511 | 92.0% | 4.7% | 0.0% |
| Afternoon | 300 | 78.0% | 13.3% | 0.0% |
| Evening | 357 | 77.0% | 15.4% | 0.0% |
| Night | 92 | 55.4% | 31.5% | 0.0% |
Which weekday was most reliable for SJC to PDX?
Among qualifying SJC-to-PDX weekday results, Wednesday had the highest on-time rate: 91.1% of 225 flights. Friday was lowest at 79.2% across 250 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 251 | 85.3% | 8.0% | 0.0% |
| Tuesday | 229 | 90.0% | 6.6% | 0.0% |
| Wednesday | 225 | 91.1% | 5.8% | 0.0% |
| Thursday | 252 | 82.9% | 9.5% | 0.0% |
| Friday | 250 | 79.2% | 13.6% | 0.0% |
| Saturday | 179 | 86.0% | 9.5% | 0.0% |
| Sunday | 235 | 80.4% | 13.2% | 0.0% |
Which airline was most reliable for SJC to PDX?
Among qualifying SJC-to-PDX airline results, Alaska Airlines had the highest on-time rate: 95.1% of 164 flights. Southwest Airlines was lowest at 79.0% across 973 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 973 | 79.0% | 12.8% | 0.0% |
| SkyWest Airlines | 484 | 93.0% | 5.0% | 0.0% |
| Alaska Airlines | 164 | 95.1% | 3.0% | 0.0% |
Which month was most reliable for SJC to PDX?
Among qualifying SJC-to-PDX month results, May 2026 had the highest on-time rate: 90.5% of 116 flights. July 2025 was lowest at 75.0% across 136 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 136 | 75.0% | 16.9% | 0.0% |
| August 2025 | 142 | 85.2% | 7.7% | 0.0% |
| September 2025 | 150 | 82.7% | 8.7% | 0.0% |
| October 2025 | 162 | 80.9% | 9.9% | 0.0% |
| November 2025 | 117 | 83.8% | 11.1% | 0.0% |
| December 2025 | 184 | 87.0% | 7.6% | 0.0% |
| January 2026 | 127 | 89.0% | 7.1% | 0.0% |
| February 2026 | 110 | 89.1% | 7.3% | 0.0% |
| March 2026 | 105 | 88.6% | 8.6% | 0.0% |
| April 2026 | 115 | 90.4% | 7.0% | 0.0% |
| May 2026 | 116 | 90.5% | 6.9% | 0.0% |
| June 2026 | 157 | 80.3% | 14.0% | 0.0% |
What drove SJC to PDX delay minutes?
Late aircraft was the largest recorded SJC-to-PDX delay category, accounting for 69.2% of 13,194 BTS-attributed delay minutes during July 2025–June 2026.
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