SEA Concourse C Expansion
Sector: Airport • Location: Seattle, Washington, United States
Source: My Northwest
The Seattle-Tacoma International Airport (SEA) is undergoing a $399 million expansion project to nearly triple the size of Concourse C. The expansion increases the facility from 81,000 square feet to 226,530 square feet, adding additional dining and retail spaces, a 20,000-square-foot Alaska Airlines lounge, office spaces, and various amenities to improve passenger experience.
- Status
- Under Construction
- Sector
- Airport, Commercial, Residential
- Location
- Seattle, Washington, United States of America
- Updated
- 22 Jul 2026
- Source
- My Northwest
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Project Information
Participants
| Not available for this record. |
Status
Original status | wrapping up |
Taiyo status | Under Construction |
Taiyo last update | 2026-07-22 |
Contact
| Not available for this record. |
Description
Description | The Seattle-Tacoma International Airport (SEA) is undergoing a $399 million expansion project to nearly triple the size of Concourse C. The expansion increases the facility from 81,000 square feet to 226,530 square feet, adding additional dining and retail spaces, a 20,000-square-foot Alaska Airlines lounge, office spaces, and various amenities to improve passenger experience. |
Original sector | Transportation |
Budget |
Location
Country | United States of America (USA) |
State | Washington |
City | Seattle |
Source
Source | My Northwest |
URL |
More Details
Record type | Project |
Sector | Airport, Commercial, Residential |
Article published date | 2026-03-20 |
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