Updated April 17, 2025
Know before you go. Stay up to date on airport construction and how it might impact your journey.
Current construction impacts
| PROJECT | IMPACTED AREA | IMPACT DESCRIPTION |
| SEA Gateway | Checkpoint 6 | TSA Security Checkpoint 6 (formerly Checkpoint 5) is closed until later in 2025 |
| SEA Gateway | Skybridge 2 | Skybridge 2 is currently closed, set to reopen towards the end of April 2025 |
| Checkpoint Renumbering | All security checkpoints | APRIL 17, 2025 - All checkpoints were renumbered 1-6 to make way for the brand-new Checkpoint 1 on the Baggage Claim Level |
*all dates and times are subject to change
Upcoming construction impacts
| PROJECT | IMPACTED AREA | IMPACT DESCRIPTION |
| Checkpoint 1 Relocation | New Checkpoint 1 on Baggage Claim Level | Opening Q2 2025 on the Baggage Claim Level will be a brand-new checkpoint with five additional screening lanes and open to General Screening and more |
*all dates and times are subject to change
Resources
- Check Upgrade SEA to learn more about current and future airport improvements
- Get step-by-step directions throughout the airport and see available routes, detours and more on our interactive map
