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Security Checkpoints at Seattle-Tacoma International (SEA)
Complete terminal-by-terminal breakdown of TSA security checkpoints at Seattle-Tacoma International in Seattle, Washington.
Live Checkpoint Status
Real-time open/closed status updated every 5 minutes
Terminal MAIN
Checkpoint 1Open
Checkpoint 3Closed
Checkpoint 4Open
Offsite CheckpointOpen
All Terminal Checkpoints
| Terminal | Checkpoint | PreCheck |
|---|---|---|
| MAIN | Checkpoint 3 | — |
| Offsite Checkpoint | — | |
| Checkpoint 4 | — | |
| Checkpoint 1 | — |
Tips for SEA Security Checkpoints
- 1.Check which terminal your airline uses before heading to security — each terminal has its own checkpoint.
- 2.If you have TSA PreCheck, verify the checkpoint you're using has a PreCheck lane open.
- 3.During off-peak hours, some checkpoints may close. Check the live status above before heading to the airport.
- 4.Have your boarding pass and ID ready before entering the security line to speed up the process.