Hi, flew out of Frontier Airlines MIA Terminal last week. The terminal was very crowded but Frontier's check-in area was clearly marked. Their people were very friendly and weighed my bag for me—very strict on those baggage limits! The security lines were quicker than I thought they would be. After going through, there were not many food options close to the gate, but I snacked. Seating was very cramped, and it filled up quickly. Boarding was in zones and was quite organized. Frontier isn't glamorous, but you pay for what you get. It's okay if you're flying budget-friendly and book early.
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