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The Changi Airport PTB (Public Terminal Building) 1&2 Bus Terminals are located in the basement of Singapore Changi Airport Terminal 1 & 2 respectively. PTB2 is connected to Changi Airport MRT Station. These terminals form a loop; buses terminating at Changi Airport first make a quick stop at PTB1 before proceeding to PTB2, where drivers would take a quick break before continuing out of Changi Airport towards the other terminal. These interchanges are operated by SBS Transit.
A free shuttle bus to the Budget Terminal is operated from PTB2's terminal.
[edit] Routes