Which departure time was most reliable for PDX to LAX?
Among qualifying PDX-to-LAX departure window results, Early morning had the highest on-time rate: 89.2% of 1,036 flights. Night was lowest at 80.3% across 259 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 1,036 | 89.2% | 5.0% | 0.8% |
| Late morning | 761 | 86.7% | 6.3% | 1.4% |
| Afternoon | 1,207 | 86.0% | 9.4% | 1.2% |
| Evening | 1,140 | 86.1% | 9.4% | 0.4% |
| Night | 259 | 80.3% | 10.0% | 0.8% |
Which weekday was most reliable for PDX to LAX?
Among qualifying PDX-to-LAX weekday results, Wednesday had the highest on-time rate: 90.2% of 562 flights. Sunday was lowest at 83.4% across 670 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 702 | 85.8% | 8.7% | 1.4% |
| Tuesday | 579 | 88.1% | 7.4% | 0.3% |
| Wednesday | 562 | 90.2% | 6.0% | 0.2% |
| Thursday | 676 | 85.2% | 9.2% | 0.9% |
| Friday | 673 | 85.6% | 7.0% | 1.0% |
| Saturday | 541 | 89.1% | 5.5% | 0.7% |
| Sunday | 670 | 83.4% | 10.3% | 1.3% |
Which airline was most reliable for PDX to LAX?
Among qualifying PDX-to-LAX airline results, Delta Air Lines had the highest on-time rate: 90.1% of 1,689 flights. SkyWest Airlines was lowest at 80.6% across 599 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 1,897 | 85.8% | 6.2% | 0.8% |
| Delta Air Lines | 1,689 | 90.1% | 7.2% | 0.9% |
| SkyWest Airlines | 599 | 80.6% | 13.9% | 0.3% |
| Frontier Airlines | 218 | 82.6% | 10.6% | 2.8% |
Which month was most reliable for PDX to LAX?
Among qualifying PDX-to-LAX month results, September 2025 had the highest on-time rate: 92.2% of 372 flights. December 2025 was lowest at 80.0% across 380 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 409 | 85.6% | 7.6% | 2.4% |
| August 2025 | 412 | 82.0% | 10.0% | 1.5% |
| September 2025 | 372 | 92.2% | 5.6% | 0.0% |
| October 2025 | 379 | 87.1% | 5.8% | 0.8% |
| November 2025 | 364 | 87.9% | 7.7% | 0.3% |
| December 2025 | 380 | 80.0% | 11.6% | 0.3% |
| January 2026 | 331 | 86.4% | 7.9% | 0.6% |
| February 2026 | 308 | 85.4% | 10.1% | 1.3% |
| March 2026 | 367 | 86.9% | 6.5% | 1.4% |
| April 2026 | 346 | 86.1% | 9.8% | 0.6% |
| May 2026 | 377 | 89.4% | 6.4% | 0.3% |
| June 2026 | 358 | 90.5% | 5.6% | 1.1% |
What drove PDX to LAX delay minutes?
Airline was the largest recorded PDX-to-LAX delay category, accounting for 52.3% of 43,763 BTS-attributed delay minutes during July 2025–June 2026.
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