Which departure time was most reliable for SLC to PHX?
Among qualifying SLC-to-PHX departure window results, Early morning had the highest on-time rate: 91.7% of 1,392 flights. Evening was lowest at 75.0% across 1,170 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 1,392 | 91.7% | 4.8% | 0.7% |
| Late morning | 1,048 | 86.1% | 7.0% | 0.5% |
| Afternoon | 1,527 | 82.3% | 10.9% | 0.3% |
| Evening | 1,170 | 75.0% | 15.3% | 0.8% |
| Night | 622 | 78.3% | 14.5% | 0.6% |
Which weekday was most reliable for SLC to PHX?
Among qualifying SLC-to-PHX weekday results, Saturday had the highest on-time rate: 87.2% of 696 flights. Sunday was lowest at 79.3% across 864 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 878 | 81.9% | 11.6% | 0.8% |
| Tuesday | 797 | 87.2% | 7.3% | 0.5% |
| Wednesday | 786 | 84.7% | 9.4% | 0.3% |
| Thursday | 862 | 81.3% | 10.9% | 0.3% |
| Friday | 876 | 83.0% | 9.8% | 0.6% |
| Saturday | 696 | 87.2% | 6.9% | 0.4% |
| Sunday | 864 | 79.3% | 13.1% | 0.9% |
Which airline was most reliable for SLC to PHX?
Among qualifying SLC-to-PHX airline results, Delta Air Lines had the highest on-time rate: 87.3% of 1,708 flights. Southwest Airlines was lowest at 79.2% across 1,860 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 1,860 | 79.2% | 11.6% | 0.4% |
| Delta Air Lines | 1,708 | 87.3% | 7.6% | 0.5% |
| SkyWest Airlines | 1,159 | 86.2% | 9.2% | 0.3% |
| Frontier Airlines | 677 | 80.1% | 13.0% | 1.5% |
| American Airlines | 266 | 84.2% | 9.8% | 0.4% |
| Envoy Air | 89 | 79.8% | 10.1% | 1.1% |
Which month was most reliable for SLC to PHX?
Among qualifying SLC-to-PHX month results, December 2025 had the highest on-time rate: 87.2% of 514 flights. November 2025 was lowest at 77.2% across 478 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 431 | 78.4% | 15.3% | 1.2% |
| August 2025 | 429 | 85.3% | 8.2% | 0.2% |
| September 2025 | 413 | 86.9% | 7.0% | 0.2% |
| October 2025 | 476 | 79.4% | 10.5% | 0.0% |
| November 2025 | 478 | 77.2% | 11.9% | 1.7% |
| December 2025 | 514 | 87.2% | 7.4% | 0.6% |
| January 2026 | 490 | 86.1% | 9.4% | 0.6% |
| February 2026 | 488 | 84.8% | 9.0% | 0.2% |
| March 2026 | 582 | 86.6% | 8.1% | 0.7% |
| April 2026 | 522 | 83.1% | 10.7% | 0.6% |
| May 2026 | 501 | 85.2% | 9.4% | 0.2% |
| June 2026 | 435 | 78.4% | 13.8% | 0.5% |
What drove SLC to PHX delay minutes?
Late aircraft was the largest recorded SLC-to-PHX delay category, accounting for 47.6% of 65,537 BTS-attributed delay minutes during July 2025–June 2026.
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