Updated April 22, 2026
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 |
|---|---|---|
| C Concourse Expansion | C and D Concourse corridors | Temporary barricades have been erected creating slightly narrower hallways along the C and D concourses. Crews for the CCE project are working on terrazzo flooring work. |
| Maintenance | Skybridge 3 | Closed week of April 27 |
| Maintenance | Skybridge 4 | Closed week of May 4 |
| Maintenance | Skybridge 5 | Closed week of May 11 |
| Roadway Improvements | Arrivals Drive closure | Effective May 11-16 from midnight to 4 a.m. the lower Arrivals Drive will close all traffic and route traffic to Departures Drive including personally owned vehicles, rental car shuttles, courtesy vehicles, airporters, and other transportation providers. Signage for detours will be available and dates and times may vary. |
*all dates and times are subject to change
Resources
- Checkout Airport Capital Projects (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
