Which departure time was most reliable for PDX to SLC?
Among qualifying PDX-to-SLC departure window results, Early morning had the highest on-time rate: 92.2% of 589 flights. Evening was lowest at 84.6% across 818 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 589 | 92.2% | 3.1% | 0.0% |
| Late morning | 480 | 87.7% | 7.1% | 1.7% |
| Afternoon | 494 | 87.4% | 6.5% | 1.0% |
| Evening | 818 | 84.6% | 10.0% | 0.9% |
Which weekday was most reliable for PDX to SLC?
Among qualifying PDX-to-SLC weekday results, Tuesday had the highest on-time rate: 92.1% of 342 flights. Sunday was lowest at 84.3% across 345 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 364 | 85.7% | 7.1% | 0.5% |
| Tuesday | 342 | 92.1% | 4.1% | 0.9% |
| Wednesday | 328 | 90.2% | 3.7% | 0.6% |
| Thursday | 337 | 86.6% | 9.8% | 0.3% |
| Friday | 362 | 88.7% | 7.2% | 0.8% |
| Saturday | 303 | 86.1% | 8.6% | 1.0% |
| Sunday | 345 | 84.3% | 8.4% | 1.7% |
Which airline was most reliable for PDX to SLC?
Among qualifying PDX-to-SLC airline results, Alaska Airlines had the highest on-time rate: 93.6% of 47 flights. Frontier Airlines was lowest at 58.1% across 43 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 1,698 | 89.2% | 6.2% | 1.1% |
| SkyWest Airlines | 593 | 85.2% | 8.1% | 0.2% |
| Alaska Airlines | 47 | 93.6% | 2.1% | 0.0% |
| Frontier Airlines | 43 | 58.1% | 27.9% | 0.0% |
Which month was most reliable for PDX to SLC?
Among qualifying PDX-to-SLC month results, September 2025 had the highest on-time rate: 92.0% of 176 flights. July 2025 was lowest at 79.4% across 247 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 247 | 79.4% | 13.4% | 0.0% |
| August 2025 | 222 | 84.2% | 8.6% | 0.5% |
| September 2025 | 176 | 92.0% | 3.4% | 0.0% |
| October 2025 | 211 | 89.1% | 5.7% | 0.0% |
| November 2025 | 189 | 86.2% | 7.4% | 2.1% |
| December 2025 | 201 | 85.6% | 8.5% | 1.0% |
| January 2026 | 177 | 87.0% | 7.3% | 1.1% |
| February 2026 | 172 | 90.1% | 4.7% | 1.2% |
| March 2026 | 193 | 91.2% | 3.1% | 1.6% |
| April 2026 | 186 | 91.9% | 5.4% | 1.1% |
| May 2026 | 192 | 91.1% | 6.2% | 1.0% |
| June 2026 | 215 | 87.9% | 7.4% | 0.9% |
What drove PDX to SLC delay minutes?
Late aircraft was the largest recorded PDX-to-SLC delay category, accounting for 52.7% of 16,327 BTS-attributed delay minutes during July 2025–June 2026.
Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.