Full Breakdown
Seattle-Tacoma International Airport Opens Expanded C Concourse Ahead of World Cup
6/11/2026, 1:27:38 PM
Opening of the Expanded C Concourse
Seattle-Tacoma International Airport (SEA) opened its renovated C concourse on Thursday, June 11, after three years of work. The $399 million project adds three new floors, expanding the area from 81,000 sq ft to 229,500 sq ft and introducing a central “Tree at C” art piece, Grand Stairs, an outdoor Lookout, and a new Alaska Airlines lounge.
Background and Context
The concourse is part of the Port of Seattle’s $5 billion UpgradeSEA program, aimed at easing overcrowding. A study projects 107 million passengers annually by 2050, far above the 67 million the region’s airports can currently handle. The vertical expansion was timed for the 2026 FIFA World Cup, which could bring up to 750,000 visitors.
Key Figures and Groups
Wendy Reiter, SEA’s managing director, led the project; Port Commission President Ryan Calkins highlighted its importance. Turner Construction Vice President Kevin Stilwell called the concourse a community gateway, and Trades Council Executive Secretary Monty Anderson noted its job-creation impact.
Design, Amenities, and Sustainability
Ten new dining and retail venues—including Olympia Coffee, Seattle Macaron Co., and Nanny’s BBQ—share space with six SEA Sparks incubator kiosks. Sustainable features include electrochromic folding windows, rooftop photovoltaics supplying 12-14 % of power, all-electric heating and a LEED Platinum goal.
Data Snapshot
The $399 million expansion added 145,000 sq ft of passenger-facing space and created 11 dining/retail locations (10 new). Over 60 bids competed for the slots, and rooftop solar will generate roughly 12-14 % of the concourse’s electricity.
Impact on Travelers and Economy
Wider circulation eases the typical “tight feeling” of crowded terminals, while the Pacific Northwest-themed design showcases regional culture. The project has generated thousands of family-wage jobs and apprenticeships, supporting the local economy and climate goals.
Official Statements & Responses
Reiter said the airport must “help with” projected demand and that the new concourse will “shift the entire circulation” of SEA. Calkins called the project a showcase of innovation, environmental leadership and partnership. Stilwell described it as a gateway shaping visitors’ impressions.
Verbatim Quotes
- “It’s a wow moment, truly,” — Wendy Reiter, SEA Airport Managing Director
- “The C Concourse Expansion represents more than a new building for the Port of Seattle — it demonstrates what is possible when innovation, environmental leadership, and partnership come together,” — Ryan Calkins, Port of Seattle Commission President
- “Airports serve as gateways to their communities, and the spaces within them help shape a traveler’s experience and impression of a region,” — Kevin Stilwell, Turner Construction Vice President
- “The investments at SEA Airport including the C Concourse Expansion have created thousands of good, family-wage jobs for our local communities,” — Monty Anderson, Executive Secretary, Seattle Building & Construction Trades Council
What’s Next
The Sustainable Aviation Master Plan calls for a second terminal with 19 new gates and other long-term projects to meet the projected 107 million annual passengers. The C concourse serves as a model for future vertical expansions at SEA.
