United Airlines operates from Terminal S in the Central Terminal at Miami International Airport (MIA), offering travelers a well-organized and efficient experience. The United Airlines MIA Terminal serves both domestic and international flights, providing access to a wide network of destinations with the reliable service United is known for.Upon arrival, passengers will find clearly marked signage directing them to United’s ticketing counters and self-service kiosks, where check-in is quick and user-friendly. Whether checking bags or traveling carry-on only, travelers benefit from streamlined processes and friendly staff assistance. For convenience, travelers can also check in via the United app, allowing access to boarding passes and real-time flight updates.