Ástor Piazzola International Airport — Mar del Plata, Argentina

MDQ is the IATA code for Ástor Piazzolla International Airport, serving Mar del Plata on Argentina's Atlantic coast. Named after the world-famous tango composer and bandoneon player born in the city, the airport handles year-round domestic flights from Buenos Aires and sees a sharp seasonal surge each summer as Argentine holidaymakers flock to Mar del Plata's beaches. Aerolíneas Argentinas and other domestic carriers operate the bulk of scheduled service. The airport also supports general aviation and occasional charter flights tied to the city's fishing and tourism economy. Its single passenger terminal and modest scale reflect Mar del Plata's identity as a major coastal resort rather than an international gateway, though the airport remains one of the busier regional hubs in Buenos Aires Province outside the capital itself.