Editorial disclosure: CardRewards.ai is an independent comparison service. Card data comes from issuers' published terms; data as of September 27, 2026. Card issuers do not influence our rankings or content.
The American Express Centurion Lounge at Seattle-Tacoma airport is a luxurious retreat for holders of the Amex Platinum Card and Centurion Card. The club belongs to an ever-expanding network spanning over 25 locations worldwide, including major airports like [San Francisco (SFO)](https://loungereview.com/lounges/the-centurion-lounge-sfo/), [Los Angeles (LAX)](https://loungereview.com/lounges/american-express-the-centurion-lounge-lax/), [New York JFK](https://loungereview.com/lounges/american-express-centurion-lounge-jfk/), and [Hong Kong (HKG.)](https://loungereview.com/lounges/american-express-centurion-lounge-hkg/) Situated at the center of the main terminal, the American Express Centurion Lounge Seattle opened in 2023, succeeding a much more modest original location in Concourse B. At Sea-Tac airport, all gates and terminals are connected airside, allowing travelers to access the lounge regardless of their airline or destination. To find the lounge, locate the Ever Greens Restaurant on the left side of the central atrium and take the elevator to the upper floor.