Seattle (SEA) Delays in 2024
79.3% on-time departures, 80.5% on-time arrivals in 2024
163,724Flights
79.3%Departures on-time
12.5 minAvg dep. delay
80.5%Arrivals on-time
12.5 minAvg arr. delay
1.1%Cancelled
Delay causes
- Air carrier42.2%
- Extreme weather5.2%
- National Aviation System22.3%
- Security0.3%
- Late-arriving aircraft29.9%
← 2023 · Seattle (SEA) overview · 2025 →
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.