TAM Mercosur, officially known as Líneas Aéreas Paraguayas (LAP), is the national airline of Paraguay. Operating under the IATA code PZ and ICAO code LAP, it has served as the country's primary flag carrier for domestic and international routes across South America. The airline has historically maintained connections between Asunción and major South American cities, including destinations in Brazil, Argentina, and Bolivia. It has operated under various ownership arrangements, including a notable association with Brazilian carrier TAM Airlines, from which it partially derived its branding. Over the years, TAM Mercosur has faced financial and operational challenges common to smaller regional carriers. Its operations have been subject to restructuring, and its current operational status has been uncertain following broader changes in the regional aviation landscape.