The Caribair service was popular both with local residents and tourists alike, traveling between Puerto Rico and other Caribbean islands. By 1950, the airline's name had officially changed to Caribair and service to the Dominican Republic were initiated. Caribair continued to expand during the 1950s and 1960s, and by 1962, the Puerto Rico-based airline was serving a number of international destinations including Santo Domingo, Guadeloupe, St. Thomas, St. Croix and St. Maarten. Domestic destinations included Mayaguez and Ponce. In the early 1960s, Caribair began operating select flights on behalf of Eastern Airlines using Convair 640 turboprop aircraft. In order to compete with an increase in flight activity from other airlines, including British West Indian Airways (BWIA) and Leeward Islands Air Transport (LIAT), Caribair put into service new McDonnell Douglas DC-9-30 jetliners, becoming the first Puerto Rico-based airline to offer modern jet service.3
