Caribair was a Puerto Rican airline based in San Juan, Puerto Rico, that served over a dozen destinations in the Caribbean as well as Miami. In 1970, the air carrier was serving sixteen destinations on fourteen Caribbean islands with some flights offering direct, no change plane service to and from Miami. The airline offered McDonnell Douglas DC-9-30 jet service via a number of intermediate stops including San Juan (SJU) for its direct flight services between Miami (MIA) and Port of Spain, Trinidad. Caribair was the first Puerto Rico-based airline to operate jet aircraft on scheduled passenger services. The air carrier was acquired by Eastern Air Lines in 1973. In 1967, the Eastern system timetable listed Caribair flights operated with Convair 640 "prop jet" aircraft as connecting services between San Juan and both St. Croix and St. Thomas in the U.S. Virgin Islands.