What Terminal is Delta at SMF? Sacramento International Airport's Terminal A is home to Delta Air Lines (SMF). Serving a number of major airlines, Terminal A is renowned for its state-of-the-art amenities and well-organized design. Within this terminal, travelers flying with Delta can check in at the designated Delta counters, go through security, and enter their departure gates. Shopping, dining options, and cozy seating are just a few of the amenities available at Terminal A. For domestic flights, it is advised to arrive at least two hours prior to departure. Before leaving for the airport, always confirm your flight status and terminal assignment because gate locations and terminal assignments can change at any time.