Frontier Airlines operates out of Terminal A at Orlando International Airport. Within Terminal A, Frontier uses Airside 1, one of four airside concourses connected to the main terminal by automated people movers (trams). Terminal A is located on the north side of MCO and is shared with several domestic airlines.
If you're flying with Frontier, you’ll need to check in at the Level 3 ticketing counters, then proceed through TSA security and take the tram to Airside 1, where your gate will be located. For additional reference, the frontier airlines mco terminal guide gives a detailed explanation of check-in locations, airside gates, amenities, and tips for navigating the terminal efficiently.
https://airlinestermnals.com/f....rontier-airlines-mco



