Hi! I flew Frontier Airlines MCO Terminal last week and was really impressed. Terminal A is clean, tidy, and has plenty of seating and places to eat. Check-in was fast using the kiosks, and the people were friendly and made it simple. TSA was around 15 minutes. Boarding was right on time, and I paid extra for an upgraded seat with more legroom, which was well worth it. Smooth flight, no delay, and the staff were cheerful. Super budget airline!