SEA Seattle
Seattle-Tacoma International(Sea-Tac)
Best time through security: 4 AM (about 5 min)
Most reliable airline here: (85% on time)
Why delays happen: The most common reason for departure delays here is the airline (crew, maintenance, or boarding).
Get a pre-flight briefing for SEA
Delay risk, TSA wait, and weather — emailed before your flight. Free.
Common questions about SEA
Are there delays at SEA right now?
No active delays at SEA right now. Historically, SEA runs on time 81% of the time.
How long is TSA at SEA?
Estimated wait right now: very quiet — expect minimal lines at this hour. Fastest time: 4 AM (about 5 min). Busiest: 11 AM (24-30 minutes).
What usually causes delays at SEA?
The most common reason for departure delays here is the airline (crew, maintenance, or boarding). About 0.9% of flights get cancelled.
How long of a connection do I need?
SEA is fairly reliable — 60 minutes is usually fine for domestic, 90 minutes for international.