What happened
- A two-story Alaska Airlines lounge with a new premium club for long-haul business-class flyers and high-level elites.
- An enclosed outdoor viewing deck and rooftop solar array.
- Approximately a dozen new dining and retail options, including local brands like Great State Burger and Olympia Coffee, alongside national chains like Chili's and Buffalo Wild Wings.
- New amenities such as an interfaith prayer room, nursing suite, pet relief area, and a live music stage.
- Expanded public art installations. The expansion addresses previous footprint constraints by adding four new floors to the existing structure
Seattle-Tacoma International Airport (SEA) is targeting a late May or early June 2026 opening for its expanded Concourse C, aiming to have the facility fully operational for the FIFA World Cup between mid-June and early July. The $399 million project expands the concourse from approximately 81,000 square feet to over 226,000 square feet. Key features include: