Baltimore, MD, Oakland, CA & New York, NY 1950-1978

Started as Air Travel in 1946. Renamed Calasia Air Transport same year. Name changed to Overseas National in 1950. Bankrupt in 1963. Restarted in 1965. Bankrupt in 1978. Restructured and operated from 1980-1983. Renamed National Airlines 1983. Closed down in 1986.