The Seattle SuperSonics ( commonly known as the Sonics ) were a professional basketball team based in Seattle , Washington , that played in the Pacific and Northwest Divisions of the National Basketball Association ( NBA ) from 1967 until 2008 .
The Seattle SuperSonics ( also called the Seattle Sonics ) were an American professional basketball team based in Seattle , Washington that played in the Pacific and Northwest Divisions of the National Basketball Association ( NBA ) from 1967 until its final season in 2007 -- 2008 .