Route
ACV → SFO
California Redwood Coast-Humboldt County Airport San Francisco International Airport
250 miles
Return route SFO → ACV →
Alerts at ACV and SFO
How punctual is this route?
- On-time arrivals
- 56.5%
- Less than 15 minutes late
- Cancelled
- 2.7%
- Of scheduled flights
- Average delay when late
- 81 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,291
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 37%
- Airline (crew, maintenance, cleaning) 26%
- Late-arriving aircraft 23%
- Extreme weather 14%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 58.8% | 97 |
| October 2025 | 67.2% | 122 |
| November 2025 | 57.5% | 118 |
| December 2025 | 68.2% | 117 |
| January 2026 | 77.9% | 98 |
| February 2026 | 62.0% | 80 |
| March 2026 | 72.9% | 86 |
| April 2026 | 48.6% | 111 |
| May 2026 | 50.9% | 113 |
| June 2026 | 41.7% | 108 |
| July 2026 | 38.2% | 123 |
| August 2026 | 42.7% | 118 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| SkyWest Airlines | 1,271 | 57.3% | 2.8% | 82 min |
| United Airlines | 20 | 10.0% | 0.0% | 45 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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