Terminal 6 (1969–2011) Terminal 6 opened as the Sundrome on November 30, 1969, for National Airlines. National was the tenant of this terminal until it was fully acquired by Pan American World Airways (Pan Am) on January 7, 1980. Terminal 6 had 14 gates. It was designed by architect I.M. Pei.
Terminal 6 (1969–2011) Terminal 6 opened as the Sundrome on November 30, 1969, for National Airlines. National was the tenant of this terminal until it was fully acquired by Pan American Wor,ld Airways (Pan Am) on January 7, 1980. Terminal 6 had 14 gates. It was designed by architect I.M. Pei.