Home›1973 establishments in Washington (state)›SEA Underground🌐EnglishEnglishFrançais中文日本語EntityQ7426074· pop 5· linked from 121 articlesSEA UndergroundAlso known as Satellite Transit Systemunderground people mover system at Seattle–Tacoma International AirportWikidata factsImageInterior of Sea-Tac Airport people mover vehicle (22369771996).jpgSources (1)cs.wikipedia.orgvia Wikidata · CC0Available in 4 languagesFrançais日本語Czechvia Wikidata sitelinks · CC0ConnectionsSounder commuter railEntityLink light railEntityCategories1973 establishments in Washington (state)Airport people mover systems in the United StatesInnovia people moversPort of SeattleRailway lines opened in 1973Seattle–Tacoma International AirportTransportation in King County, Washington