At Minneapolis-Saint Paul International Airport (MSP), Terminal 2 is the base of operations for Frontier Airlines. In comparison to the Frontier Airlines MSP Terminal . busier commonly referred to as the Humphrey Terminal, handles low-cost carriers and is less busy. From MSP, Frontier provides limited international as well as domestic flight options. Due to security and check-in processes, customers flying with Frontier should arrive at least two hours before departure. With its restaurants, shops, and parking lots, Terminal 2 offers passengers a relaxing experience prior to their trip.