Buenos Aires BUE to Miami International Airport MIA flight with American Airlines

United Airlines, established in 1926, is a major U.S. airline headquartered in Chicago, Illinois. Operating an extensive domestic and international network, United serves more destinations than any other airline, connecting travelers across six continents. The airline's eight hubs include Chicago–O'Hare, Denver, Houston–Intercontinental, Los Angeles, Newark, San Francisco, Washington–Dulles, and Guam. As a founding member of the Star Alliance, United offers a comprehensive range of services, including regional flights through United Express, catering to both leisure and business travelers. The airline is committed to sustainability, investing in sustainable aviation fuel and innovative technologies to reduce its environmental impact.

American Airlines is one of the largest airlines in the world, connecting travelers to hundreds of destinations across the United States, Latin America, Europe, Asia, and beyond. Operating from major hubs such as Dallas/Fort Worth, Miami, and Charlotte, American offers a wide range of travel options. Passengers can choose from Economy with affordable fares, Premium Economy with extra space, or Business and First Class featuring flat-bed seats, premium dining, and lounge access. With a modern fleet and membership in the oneworld alliance, American Airlines combines global reach with comfort and reliability.

Aerolíneas Argentinas is Argentina's state-owned flag carrier and largest airline, operating since 1950. It serves over sixty domestic and international destinations across South America, the Caribbean, North America, and Europe. The airline's main operational hubs are Aeroparque Jorge Newbery for domestic and regional flights, and Ministro Pistarini International Airport (Ezeiza) for long-haul services, both located in Buenos Aires. Aerolíneas Argentinas is a member of the SkyTeam alliance, joining in 2012 as its first and only South American partner. The group also includes cargo services (Aerolíneas Cargo and Jet Paq) and a tourism operator (Optar).

LATAM Airlines Peru, a subsidiary of LATAM Airlines Group, is a major airline based in Lima, Peru, and the dominant carrier in the Peruvian domestic market. It operates scheduled domestic and international flights, with its main hub at Jorge Chávez International Airport. The airline was formerly known as LAN Perú S.A. until 2015, when it was dissolved and rebranded as LATAM Airlines as part of the merger between LAN Airlines and TAM Airlines. LATAM Airlines Group, the parent company, is the largest airline group in South America.