Which departure time was most reliable for DEN to PDX?
Among qualifying DEN-to-PDX departure window results, Early morning had the highest on-time rate: 85.8% of 862 flights. Night was lowest at 59.1% across 418 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 862 | 85.8% | 7.2% | 0.0% |
| Late morning | 888 | 82.3% | 8.9% | 0.7% |
| Afternoon | 964 | 76.9% | 12.4% | 0.2% |
| Evening | 1,157 | 60.2% | 25.5% | 0.6% |
| Night | 418 | 59.1% | 28.0% | 1.0% |
Which weekday was most reliable for DEN to PDX?
Among qualifying DEN-to-PDX weekday results, Tuesday had the highest on-time rate: 78.3% of 580 flights. Monday was lowest at 70.2% across 648 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 648 | 70.2% | 18.2% | 0.2% |
| Tuesday | 580 | 78.3% | 13.6% | 0.2% |
| Wednesday | 575 | 73.0% | 14.8% | 0.2% |
| Thursday | 652 | 70.6% | 17.0% | 0.6% |
| Friday | 659 | 73.1% | 16.2% | 1.1% |
| Saturday | 533 | 76.7% | 13.7% | 0.4% |
| Sunday | 642 | 74.0% | 15.6% | 0.5% |
Which airline was most reliable for DEN to PDX?
Among qualifying DEN-to-PDX airline results, United Airlines had the highest on-time rate: 81.3% of 1,821 flights. Southwest Airlines was lowest at 62.3% across 1,563 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| United Airlines | 1,821 | 81.3% | 12.0% | 0.4% |
| Southwest Airlines | 1,563 | 62.3% | 21.5% | 0.3% |
| Alaska Airlines | 581 | 76.9% | 13.3% | 0.7% |
| Frontier Airlines | 311 | 79.7% | 11.6% | 0.6% |
| SkyWest Airlines | 13 | 46.2% | 38.5% | 0.0% |
Which month was most reliable for DEN to PDX?
Among qualifying DEN-to-PDX month results, April 2026 had the highest on-time rate: 85.8% of 303 flights. June 2026 was lowest at 60.2% across 435 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 461 | 62.3% | 22.8% | 2.2% |
| August 2025 | 437 | 71.4% | 19.0% | 0.0% |
| September 2025 | 395 | 82.0% | 10.4% | 0.0% |
| October 2025 | 393 | 76.8% | 12.0% | 0.0% |
| November 2025 | 345 | 78.6% | 11.9% | 1.7% |
| December 2025 | 346 | 65.6% | 20.5% | 0.3% |
| January 2026 | 269 | 82.9% | 11.2% | 0.4% |
| February 2026 | 245 | 78.8% | 15.9% | 0.0% |
| March 2026 | 294 | 69.7% | 15.6% | 0.0% |
| April 2026 | 303 | 85.8% | 7.3% | 0.0% |
| May 2026 | 366 | 79.0% | 12.3% | 0.0% |
| June 2026 | 435 | 60.2% | 23.7% | 0.2% |
What drove DEN to PDX delay minutes?
Late aircraft was the largest recorded DEN-to-PDX delay category, accounting for 53.4% of 58,754 BTS-attributed delay minutes during July 2025–June 2026.
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