If you are wondering what terminal is Southwest Airlines at Orlando International Airport(MCO), Southwest Airlines operates from Terminal A at Orlando International Airport (MCO) in Orlando, Florida. Passengers can access Southwest ticket counters, check-in kiosks, baggage drop services, and security checkpoints in Terminal A. Most Southwest departures use Airside 2, which serves Gates 100-129. Travelers should check their boarding passes and airport flight information displays for the latest gate assignments and arrive at least two hours before departure for a smooth and convenient travel experience.