SEA TSA Wait Times
Seattle-Tacoma International · Seattle, WA
Pacific Northwest's primary airport
Estimated Security Wait
EST.Source: Historical average · Updated typical for this time
About security at SEA
Seattle-Tacoma International (Sea-Tac) is a major hub for Alaska Airlines and Delta, with a single main terminal serving 3 checkpoints. Sea-Tac is known for efficient operations despite rapid passenger growth.
Best time to arrive at SEA
Typical wait times at SEA
Historical averages based on long-term data. Actual waits vary with season, day of week, and flight schedules.
When should I leave home?
Calculate your departure time to SEA — includes current TSA wait, live traffic, and optional bag drop time.
Use the Departure Calculator →Frequently Asked Questions
What is the current TSA wait time at SEA?
Current standard lane wait is approximately 15 minutes, and PreCheck is approximately 5 minutes. Source: Historical average.
When is the best time to arrive at SEA?
Checkpoints 2, 3, and 5 feed the same concourses — use whichever has the shortest line. Checkpoint 5 is often overlooked.
When are peak hours at SEA?
5–8 AM, 3–6 PM weekdays; Friday evenings heavy for leisure travel.
Is TSA PreCheck available at SEA?
All three checkpoints have PreCheck lanes. Checkpoint 3's PreCheck tends to have the shortest queues.