Arcata/Eureka (ACV) to San Francisco (SFO): On-Time Performance
Data through May 2026
Arcata/Eureka (ACV) to San Francisco (SFO) effectively runs on two schedules. In January 2025, 90% of arrivals were on time; in April 2026 that fell to 49% — a 41-point seasonal swing. Across the full period the route averages 71% on-time against a national 78%. Morning departures also hold up better than evening ones (73% vs 63%), which matters most in the rough months.
- On-time
- 71%
- arrived <15 min late
- Avg delay
- 28 min
- completed flights
- Cancelled
- 1.9%
- 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 (38%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 68% | 32 min |
| Tuesday | 72% | 28 min |
| Wednesday | 70% | 29 min |
| Thursday | 72% | 21 min |
| Friday | 70% | 30 min |
| Saturdaybest | 77% | 27 min |
| Sunday | 69% | 31 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft20%
- Airline operations37%
- National airspace system22%
- Weather21%
Frequently asked questions
- How often are flights from ACV to SFO delayed?
- 29% of ACV–SFO flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 28 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 (38%). 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 29% of the time.
- How often are ACV to SFO flights cancelled?
- 1.9% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
- What is the worst month to fly from ACV to SFO?
- April 2026 was the roughest month in this dataset, with only 49% of arrivals on time. The best was January 2025 at 90%. If your dates are flexible, that 41-point gap is worth planning around.
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Based on 2,403 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.