Which departure time was most reliable for DEN to OAK?
Among qualifying DEN-to-OAK departure window results, Early morning had the highest on-time rate: 85.1% of 370 flights. Night was lowest at 46.7% across 167 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 370 | 85.1% | 4.1% | 0.3% |
| Late morning | 159 | 69.8% | 13.8% | 0.0% |
| Afternoon | 428 | 68.2% | 16.8% | 0.7% |
| Evening | 486 | 50.4% | 32.7% | 1.0% |
| Night | 167 | 46.7% | 37.1% | 0.6% |
Which weekday was most reliable for DEN to OAK?
Among qualifying DEN-to-OAK weekday results, Wednesday had the highest on-time rate: 69.1% of 220 flights. Thursday was lowest at 58.1% across 229 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 234 | 62.0% | 21.4% | 0.4% |
| Tuesday | 229 | 68.1% | 17.5% | 0.9% |
| Wednesday | 220 | 69.1% | 19.1% | 0.5% |
| Thursday | 229 | 58.1% | 25.8% | 0.9% |
| Friday | 233 | 64.8% | 21.5% | 0.9% |
| Saturday | 221 | 64.7% | 19.5% | 0.5% |
| Sunday | 244 | 66.0% | 18.9% | 0.4% |
Which airline was most reliable for DEN to OAK?
Only Southwest Airlines met the DEN-to-OAK airline threshold: 64.7% of 1,610 scheduled flights arrived on time during July 2025–June 2026.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 1,610 | 64.7% | 20.5% | 0.6% |
Which month was most reliable for DEN to OAK?
Among qualifying DEN-to-OAK month results, January 2026 had the highest on-time rate: 83.6% of 122 flights. June 2026 was lowest at 46.9% across 147 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 159 | 52.8% | 36.5% | 1.3% |
| August 2025 | 143 | 62.2% | 18.9% | 0.0% |
| September 2025 | 138 | 72.5% | 13.8% | 0.0% |
| October 2025 | 148 | 68.2% | 16.2% | 0.0% |
| November 2025 | 130 | 76.9% | 10.0% | 3.1% |
| December 2025 | 137 | 57.7% | 24.1% | 1.5% |
| January 2026 | 122 | 83.6% | 8.2% | 0.0% |
| February 2026 | 112 | 76.8% | 14.3% | 0.0% |
| March 2026 | 123 | 64.2% | 22.0% | 0.8% |
| April 2026 | 123 | 64.2% | 14.6% | 0.8% |
| May 2026 | 128 | 57.0% | 24.2% | 0.0% |
| June 2026 | 147 | 46.9% | 36.7% | 0.0% |
What drove DEN to OAK delay minutes?
Late aircraft was the largest recorded DEN-to-OAK delay category, accounting for 55.7% of 28,723 BTS-attributed delay minutes during July 2025–June 2026.
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