San Francisco (SFO) Delays in 2021
86.2% on-time departures, 84.4% on-time arrivals in 2021
98,791Flights
86.2%Departures on-time
10.1 minAvg dep. delay
84.4%Arrivals on-time
11.1 minAvg arr. delay
1.2%Cancelled
Delay causes
- Air carrier48.9%
- Extreme weather3%
- National Aviation System11.8%
- Security0.1%
- Late-arriving aircraft36.3%
← 2020 · San Francisco (SFO) overview · 2022 →
On-time = arrival within 15 minutes of schedule, per U.S. DOT definitions. Source: Bureau of Transportation Statistics (public domain). Delay-cause attribution is reported by carriers since June 2003.