LATAM Airlines Brasil, formerly TAM Linhas Aéreas, is the Brazilian brand of LATAM Airlines Group operating international and domestic flights from hubs in Rio de Janeiro, São Paulo, and Brasília. According to the National Civil Aviation Agency of Brazil (ANAC), between January and December 2019, LATAM had 34.7% of the domestic, and 20.9% of the international market share in terms of passenger-kilometers flown, making it the second largest domestic and largest international airline in Brazil.

LATAM Airlines Group S.A. is a Chilean airline holding company headquartered in Santiago, Chile. It is considered the largest airline company in Latin America with subsidiaries in Brazil, Colombia, Ecuador, Paraguay and Peru. The company filed for Chapter 11 bankruptcy in the United States on 26 May 2020, due to economic problems attributed to the impact of the COVID-19 pandemic on aviation. Although LATAM Airlines' headquarters are located in Chile, the carrier is an American depositary receipt and traded on both the Santiago Stock Exchange and New York Stock Exchange at the time of bankruptcy. The company's stock ticker (LTMAQ) was delisted from the NYSE and later moved to the unregulated OTC Markets Pink on 12 June 2020.