Seattle (SEA) Delays in 2021
85.5% on-time departures, 85.5% on-time arrivals in 2021
168,025Flights
85.5%Departures on-time
8.9 minAvg dep. delay
85.5%Arrivals on-time
9.2 minAvg arr. delay
1.4%Cancelled
Delay causes
- Air carrier46.9%
- Extreme weather8.3%
- National Aviation System19%
- Security0.3%
- Late-arriving aircraft25.5%
← 2020 · Seattle (SEA) 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.