SEA

TSA Security · Live

TSA wait times, demystified.

Seattle-Tacoma International Airport · Seattle, US

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Live data

TSA Checkpoint Operating Hours

Sunday1 / 2 Open

Terminal MAIN

Checkpoint 1

4:00 AM - 4:00 PM

Closed

Checkpoint 4

4:00 AM - 11:00 PM

Open Now

Hours may vary during holidaysUpdated:

Main Terminal

5min

Checkpoint 3

Main Terminal

2min

Checkpoint 3 TSA PreCheck

Main Terminal

16min

Checkpoint 4

Main Terminal

4min

Checkpoint 5

Main Terminal

2min

Checkpoint 5 TSA PreCheck

Main Terminal

4min

Checkpoint 6

Main Terminal

2min

Checkpoint 6 TSA PreCheck

SEA official security page ↗

Next 12 hours

TSA security · SEA · forecast

NOW+2h+4h+6h+8h+10h

— P50▮ P90 band⇢ Pad for 90% confidence

The week at a glance

Typical waits · by day and hour

Mon

Tue

Wed

Thu

Fri

Sat

Sun

LowHigh■ ring = now

Wait distribution

SEA · historical pattern

0–5 m4%

5–10 m6%

10–15 m10%

15–20 m14%

20–30 m22%

30–45 m26%

45–60 m12%

60+ m6%

P50 24 min

P90 52 min

P99 78 min

Pad 52 min for 90% confidence

Community reports

Traveler-submitted waits · last 24h

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TSA PreCheck
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Skip the regular line with TSA PreCheck. Average wait time: 9 min vs 22 min regular

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SEA Security FAQs

The average TSA security wait time at Seattle-Tacoma International Airport (SEA) is approximately 22 minutes. During peak hours (typically 5-8 AM and 4-7 PM), wait times can be 33 minutes or longer. Off-peak hours typically see wait times of 13 minutes.

TSA security lines at Seattle-Tacoma International Airport (SEA) currently average about 22 minutes. TSA PreCheck lanes are typically under 11 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 11 minutes compared to 22 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 90 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.