Which departure time was most reliable for ACV to SFO?
Among qualifying ACV-to-SFO departure window results, Afternoon had the highest on-time rate: 66.0% of 636 flights. Evening was lowest at 44.6% across 240 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 407 | 65.1% | 20.1% | 2.9% |
| Afternoon | 636 | 66.0% | 23.3% | 2.0% |
| Evening | 240 | 44.6% | 32.5% | 5.4% |
Which weekday was most reliable for ACV to SFO?
Among qualifying ACV-to-SFO weekday results, Saturday had the highest on-time rate: 72.0% of 168 flights. Monday was lowest at 56.0% across 193 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 193 | 56.0% | 29.5% | 5.7% |
| Tuesday | 173 | 61.3% | 25.4% | 4.0% |
| Wednesday | 180 | 56.7% | 22.8% | 2.8% |
| Thursday | 192 | 62.0% | 22.9% | 1.6% |
| Friday | 190 | 66.3% | 21.1% | 0.0% |
| Saturday | 168 | 72.0% | 17.3% | 4.2% |
| Sunday | 187 | 58.8% | 28.3% | 2.7% |
Which airline was most reliable for ACV to SFO?
Only SkyWest Airlines met the ACV-to-SFO airline threshold: 61.7% of 1,283 scheduled flights arrived on time during July 2025–June 2026.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| SkyWest Airlines | 1,283 | 61.7% | 24.0% | 3.0% |
Which month was most reliable for ACV to SFO?
Among qualifying ACV-to-SFO month results, July 2025 had the highest on-time rate: 82.5% of 114 flights. June 2026 was lowest at 37.0% across 108 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 114 | 82.5% | 14.0% | 0.0% |
| August 2025 | 119 | 72.3% | 14.3% | 3.4% |
| September 2025 | 97 | 58.8% | 26.8% | 0.0% |
| October 2025 | 122 | 67.2% | 20.5% | 0.0% |
| November 2025 | 118 | 55.1% | 27.1% | 4.2% |
| December 2025 | 117 | 64.1% | 23.1% | 5.1% |
| January 2026 | 98 | 75.5% | 13.3% | 3.1% |
| February 2026 | 80 | 61.2% | 25.0% | 0.0% |
| March 2026 | 86 | 72.1% | 15.1% | 1.2% |
| April 2026 | 111 | 46.8% | 31.5% | 3.6% |
| May 2026 | 113 | 49.6% | 34.5% | 2.7% |
| June 2026 | 108 | 37.0% | 41.7% | 11.1% |
What drove ACV to SFO delay minutes?
Airline was the largest recorded ACV-to-SFO delay category, accounting for 29.9% of 39,124 BTS-attributed delay minutes during July 2025–June 2026.
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