When Pan Am began, to what two cities did it deliver mail?

 

(Pan Am Seaplane flying over palms, ca. 19--. Credit: Pan Am Collection, HistoryMiami, 1996-675-61)

Starting in 1927, Pan American World Airways became a major international airline based out of Miami.  It started, however, by carrying mail.

A. Key West and Havana

 -For more information about Miami’s aviation connections, visit Aviation in Miami: the First 100 Years at HistoryMiami.