American Airlines MIA Terminal operates from Concourse D in the North Terminal at Miami International Airport (MIA), located at 2100 NW 42nd Avenue, Miami, FL 33126, United States. Passengers can access check-in counters, baggage services, security screening, restaurants, shops, and passenger assistance facilities. Travelers should confirm their flight details, check-in location, and departure gate before arriving. Arriving early allows sufficient time for check-in and security procedures. Check airport information screens for flight updates and gate changes before boarding, as terminal arrangements may vary by flight.