Unlike typical terminals in Singapore, bus services do not stop for extended periods, due to the lack of bus parking facilities. Buses terminating at Changi Airport first make a quick stop at PTB3 terminal <small></small>, before proceeding to PTB1 <small></small> and PTB2 <small></small>. At PTB2, bus drivers will get off the bus to update the informations about the trip before coming back to the bus, during which the buses will park directly at the saw-tooth berths. Passengers can remain on board and need not alight. Due to heightened security concerns, buses can only enter the basements after auxiliary police officers have physically boarded and inspected them.
A free shuttle bus to the Budget Terminal is operated from the bus terminal. Some berths are reserved at the terminal for police and CIAS vehicles.