SEA
TSA Security · Live
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Seattle-Tacoma International Airport · Seattle, US
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Live
Confidence
High
Checkpoints
2
Reports · 24h
0
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TSA Checkpoint Operating Hours
Wednesday1 / 2 Open
Terminal MAIN
Checkpoint 1
4:00 AM - 4:00 PM
Checkpoint 4
4:00 AM - 11:00 PM
Hours may vary during holidaysUpdated:
Main Terminal
21min
Checkpoint 1
Main Terminal
2min
Checkpoint 1 TSA PreCheck
Main Terminal
31min
Checkpoint 2
Main Terminal
35min
Checkpoint 3
Main Terminal
2min
Checkpoint 3 TSA PreCheck
Main Terminal
21min
Checkpoint 4
Main Terminal
7min
Checkpoint 5
Main Terminal
2min
Checkpoint 5 TSA PreCheck
Main Terminal
26min
Checkpoint 6
Main Terminal
2min
Checkpoint 6 TSA PreCheck
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TSA PreCheckRECOMMENDED
Skip the regular line with TSA PreCheck. Average wait time: 20 min vs 50 min regular
Keep shoes on
Laptop stays in bag
No jacket removal
SEA Security FAQs
The average TSA security wait time at Seattle-Tacoma International Airport (SEA) is approximately 50 minutes. During peak hours (typically 5-8 AM and 4-7 PM), wait times can be 75 minutes or longer. Off-peak hours typically see wait times of 30 minutes.
TSA security lines at Seattle-Tacoma International Airport (SEA) currently average about 50 minutes. TSA PreCheck lanes are typically under 25 minutes. Wait times are updated every 5 minutes based on real-time data.
Yes, Seattle-Tacoma International Airport offers TSA PreCheck lanes at security checkpoints. TSA PreCheck can reduce your wait time by 50% or more, with average waits of 25 minutes compared to 50 minutes in regular lanes.
The best times to go through TSA security at Seattle-Tacoma International Airport are typically early morning (5:00-6:00 AM) and mid-afternoon (2:00-4:00 PM). Avoid peak hours between 5:00-8:00 AM for morning business flights and 4:00-7:00 PM for evening departures when security lines are longest.
For domestic flights at Seattle-Tacoma International Airport, arrive at least 110 minutes before departure. For international flights, arrive 150 minutes early to allow time for security, immigration, and boarding. If traveling during holidays or peak seasons, add an extra 30 minutes.
Related Airport Information
Airport Overview
Complete airport information, arrival calculator, and all wait times
SEA
SEA TSA PreCheck Wait Times
Compare PreCheck vs regular line times at Seattle-Tacoma International Airport
Passport Control
Immigration and passport control wait times
37min wait
SEA Customs & Immigration
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Airport Parking
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Prediction factorsConfidence 80%
- Recent third-party observation indicates ~5 min at security (steady)
- Live sensor data (0 min ago)
At the checkpoint
- — TSA PreCheck is typically 50–70% faster.
- — Have ID and boarding pass ready at the divider.
- — Liquids under 100 ml / 3.4 oz in a clear zip bag.
- — Laptops and large electronics in a bin alone.
- — CLEAR+ enrollment available at this airport.
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