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
Avianca Costa Rica was being flown with a Convair 440 propliner. The airline was operating to such international destinations in 1984 as: These cities were flown to using Lacsa's Boeing 727 aircraft. As of August 2017 the LACSA fleet consisted of the following aircraft: LACSA services were previously flown exclusively by Airbus A320 family jetliners drawn from the pooled fleet of the former Grupo TACA. In 2008, a new fleet of Embraer 190 jets was introduced. On May 23, 1988, a leased Boeing 727-100, registered TI-LRC and operating the route San José-Managua-Miami, collided with a fence at the end of the runway in