Which departure time was most reliable for OAK to PDX?
Among qualifying OAK-to-PDX departure window results, Early morning had the highest on-time rate: 96.2% of 287 flights. Night was lowest at 47.8% across 67 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 287 | 96.2% | 0.7% | 1.0% |
| Late morning | 222 | 87.4% | 5.9% | 0.9% |
| Afternoon | 253 | 73.9% | 16.6% | 0.0% |
| Evening | 468 | 72.4% | 18.4% | 0.0% |
| Night | 67 | 47.8% | 46.3% | 0.0% |
Which weekday was most reliable for OAK to PDX?
Among qualifying OAK-to-PDX weekday results, Saturday had the highest on-time rate: 89.1% of 147 flights. Sunday was lowest at 69.8% across 212 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 188 | 75.0% | 13.8% | 0.5% |
| Tuesday | 192 | 87.5% | 9.9% | 0.5% |
| Wednesday | 187 | 86.6% | 5.3% | 0.5% |
| Thursday | 182 | 74.7% | 20.3% | 0.5% |
| Friday | 189 | 75.1% | 17.5% | 0.0% |
| Saturday | 147 | 89.1% | 4.8% | 0.0% |
| Sunday | 212 | 69.8% | 19.8% | 0.5% |
Which airline was most reliable for OAK to PDX?
Among qualifying OAK-to-PDX airline results, SkyWest Airlines had the highest on-time rate: 84.0% of 100 flights. Southwest Airlines was lowest at 78.6% across 1,181 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 1,181 | 78.6% | 14.0% | 0.4% |
| SkyWest Airlines | 100 | 84.0% | 9.0% | 0.0% |
| Alaska Airlines | 16 | 100.0% | 0.0% | 0.0% |
Which month was most reliable for OAK to PDX?
Among qualifying OAK-to-PDX month results, January 2026 had the highest on-time rate: 93.8% of 96 flights. June 2026 was lowest at 66.7% across 123 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 119 | 70.6% | 21.0% | 0.0% |
| August 2025 | 104 | 82.7% | 8.7% | 0.0% |
| September 2025 | 99 | 86.9% | 7.1% | 0.0% |
| October 2025 | 125 | 81.6% | 12.0% | 0.0% |
| November 2025 | 112 | 82.1% | 11.6% | 3.6% |
| December 2025 | 121 | 72.7% | 19.0% | 0.0% |
| January 2026 | 96 | 93.8% | 3.1% | 0.0% |
| February 2026 | 97 | 92.8% | 5.2% | 0.0% |
| March 2026 | 101 | 80.2% | 12.9% | 1.0% |
| April 2026 | 89 | 77.5% | 13.5% | 0.0% |
| May 2026 | 111 | 70.3% | 18.0% | 0.0% |
| June 2026 | 123 | 66.7% | 23.6% | 0.0% |
What drove OAK to PDX delay minutes?
Late aircraft was the largest recorded OAK-to-PDX delay category, accounting for 68.0% of 14,061 BTS-attributed delay minutes during July 2025–June 2026.
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