Pan American World Airways, originally founded as Pan American Airways and commonly known as Pan Am, was the principal and largest international air carrier in the United States from 1927 until its collapse on December 4, 1991.

Pan American World Airways, originally founded as Pan American Airways and commonly known as Pan Am, was the principal and largest international air carrier in the United States from 1927 until its collapse on December 4, 1991.

Braniff Airways, Inc., doing business as Braniff International Airways, from 1948 until 1965, and then Braniff International from 1965 until 1983, was an American airline that operated from 1928 until 1982.

Braniff Airways, Inc., doing business as Braniff International Airways, from 1948 until 1965, and then Braniff International from 1965 until 1983, was an American airline that operated from 1928 until 1982.