Best Time to Fly ACV to SFO: On-Time Stats by Hour & Airline
California Redwood Coast Humboldt County → San Francisco International
Data through July 2026 · Last updated October 18, 2026
1,292 flights were scheduled from Arcata/Eureka (ACV) to San Francisco (SFO) in the last 12 months, and 59.5% of those that flew arrived on time, 18.1 points below the US average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Saturday was the most reliable day (74% on time) and July the worst month (59%).
The cancellation rate was 2.9% (US average 1.8%).
ACV to SFO on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 59.5% | 83 min | 2.9% | 1,292 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ACV to SFO
On-time arrival % by scheduled departure hour (local time), 2,492 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 91.1% | 0.0% | 79 |
| 6am–7am | 85.4% | 2.1% | 335 |
| 7am–8am | 66.2% | 0.4% | 230 |
| 8am–9am | 32.0% | 3.9% | 153 |
| 2pm–3pm | 65.3% | 0.7% | 726 |
| 3pm–4pm | 80.6% | 3.0% | 234 |
| 4pm–5pm | 75.5% | 2.8% | 249 |
| 5pm–6pm | Limited data | 16 | |
| 6pm–7pm | 56.2% | 5.4% | 441 |
| 7pm–8pm | Limited data | 29 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ACV to SFO
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 67.3% | -2.1 pts | 0.0% | 52 |
| Christmas & New Year (Dec 20 - Jan 3) | 63.2% | -6.2 pts | 5.0% | 101 |
| Summer peak (Jun 15 - Aug 15) | 63.6% | -5.8 pts | 2.4% | 452 |
| All other days | 69.4% | — | 2.2% | 1,887 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).