Alaska Airlines’ D Concourse lounge at Seattle-Tacoma International Airport. The airline is planning a new 40,000-square-foot lounge in the airport’s expanded C Concourse.
Alaska Airlines
By Nick Pasion – Reporter, Puget Sound Business Journal
Mar 11, 2026
Story Highlights
What’s This?
- Alaska Air Group will build a 40,000-square-foot lounge at Seattle-Tacoma International Airport.
- The lounge will surpass in size the Delta One Lounge at New York’s John F. Kennedy International Airport.
- Alaska Airlines plans to file permit requests for the lounge in July.
Alaska Air Group Inc.‘s (NYSE: ALK) new lounge in Seattle-Tacoma International Airport’s expanded C Concourse won’t just be the biggest at Sea-Tac — it’ll be among the largest of any airline in the country.
Ben Brookman, who took over as Alaska’s head of real estate last month, on Thursday told the Business Journal that the two-story lounge will be 40,000 square feet, surpassing other contenders such as the 39,000-square-foot Delta One Lounge at New York’s John F. Kennedy International Airport, which opened in 2024.
Alaska’s lounge will be two levels, each measuring 20,000 square feet.
“There’ll be two components of that lounge, one is the traditional Alaska lounge. We’re going to up-level everything, so it’s going to be really cool,” Brookman said. “But then we also need to have a space for the international traveler.”
An Alaska Airlines spokesperson declined to expand on Brookman’s comments, though another let slip that the lounge’s superlative size “isn’t public yet.”
The build-out is part of a 145,000-square-foot, $399 million expansion of Sea-Tac’s C Concourse. Though the expansion is slated to wrap up ahead of the World Cup this summer, work on the lounge itself has yet to get underway.
According to the Port of Seattle, which oversees the airport, Alaska plans to begin filing permit requests in July.
Related coverage
- Alaska Air names new real estate VP amid expansion
- Alaska hints at plans for new lounge at Sea-Tac airport
Like other U.S. carriers, Alaska has increasingly looked to attract high-end customers as wealthy consumers outspend everyone else, a trend Alaska saw gain traction last year.
“There’s a lot of revenue growth in the industry, across the board, on the premium side,” Brookman said. “That’s meant, from an airport perspective, a lot of lounge development.”
Ryan St. John, the vice president of investor relations at Alaska, said in January that premium revenue rose 7% in the fourth quarter, while earnings from the main cabin were down “a couple percent.”
St. John previously said Alaska’s C Concourse lounge would include a business-class only section. Brookman said it would also cater to international passengers, a customer base that Alaska is trying to attract as it expands into a global airline.
SeaTac-based Alaska is the airport’s largest carrier by passenger volume.