Arcata/Eureka (ACV) to San Francisco (SFO): On-Time Performance
Data through July 2026
Arcata/Eureka (ACV) to San Francisco (SFO) effectively runs on two schedules. In January 2025, 90% of arrivals were on time; in July 2026 that fell to 38% — a 52-point seasonal swing. Across the full period the route averages 68% on-time against a national 78%. Morning departures also hold up better than evening ones (70% vs 60%), which matters most in the rough months.
- On-time
- 68%
- arrived <15 min late
- Avg delay
- 30 min
- completed flights
- Cancelled
- 2.3%
- Flights/day
- 3.5
- last 12 months
- Duration
- 1h 18m
- scheduled
- Distance
- 250 mi
Monthly on-time trend
Best time to fly from ACV to SFO
Aim for departures around 5 a.m. (91% on-time); avoid 8 a.m. departures (35%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 64% | 34 min |
| Tuesday | 70% | 27 min |
| Wednesday | 68% | 30 min |
| Thursday | 68% | 23 min |
| Friday | 68% | 33 min |
| Saturdaybest | 75% | 28 min |
| Sunday | 68% | 33 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft21%
- Airline operations33%
- National airspace system25%
- Weather21%
Frequently asked questions
- How often are flights from ACV to SFO delayed?
- 32% of ACV–SFO flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 30 minutes.
- What is the best time of day to fly from ACV to SFO?
- Departures around 5 a.m. have the best record (91% on-time), while departures around 8 a.m. have the worst (35%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ACV to SFO?
- The scheduled ACV–SFO flight time averages 1h 18m over 250 miles. Actual arrival times vary — flights on this route land 15+ minutes late 32% of the time.
- How often are ACV to SFO flights cancelled?
- 2.3% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from ACV to SFO?
- July 2026 was the roughest month in this dataset, with only 38% of arrivals on time. The best was January 2025 at 90%. If your dates are flexible, that 52-point gap is worth planning around.
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Based on 2,576 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.