what terminal is Southwest Airlines at MCO refers to the common question asked by travelers when preparing for their flight from Orlando International Airport (MCO). The answer to what terminal is Southwest Airlines at MCO is that Southwest Airlines operates primarily from Terminal A at MCO. Passengers flying with Southwest Airlines will check in, go through security, and board their flights from this terminal. Knowing the correct terminal helps ensure a smooth and stress-free travel experience when flying with Southwest Airlines at MCO.