Avianca Costa Rica on 17 October 1945 by Pan American World Airways, the Costa Rican government and Costa Rican private interests. It started operations on 1 June 1946 and was designated the national carrier in 1949. Its domestic network was transferred to its wholly owned subsidiary Sansa in September 1959. LACSA operated the Douglas DC-6B four-engined piston airliner from 1960 until 1976 on their regular passenger, and eventually freight, scheduled flights to Miami International Airport. The airline introduced the first of their British Aircraft Corporation BAC One-Eleven twin-engined jet airliners onto their Caribbean passenger route network in April 1967. The airline also operated
Airline codes airline's old livery which featured a springbok), or possibly to avoid confusion with a call sign used by an established airline. Companies' assigned names may change as a result of mergers, acquisitions, or change in company name or status; British Airways uses BOAC's old callsign ("Speedbird"), as British Airways was formed by a merger of BOAC and British European Airways. Country names can also change over time and new call signs may be agreed in substitution for traditional ones. The country shown alongside an airline's call sign is that wherein most of its aircraft are believed to be registered, which