At Orlando International Airport (MCO), Terminal A is where CertainlySpirit Airlines operates for arrivals, and Terminal B is where it departs1. Although they are located on different sides of the same structure, both terminals share it. Walking or using a shuttle bus are the two ways that passengers can get between the two terminals. Go to Terminal A's A1 for tickets. Gates numbered 1 through 29 are used for domestic arrivals, whereas gates 70 through 99 are designated for foreign arrivals. Spirit has a 68% on-time performance record at MCO, with an average delay.