Route of service 390 (taken from 1992 bus guide)
Changi Airport PTB Coach Park, (T1 Boulevard), (T1 Basement Dr),
PTB 1, (T1 Basement Dr), (T2 Basement Dr), PTB 2, (T2 Basement Dr),
(T2 Boulevard), Airport Boulevard, (ECP), Temasek Boulevard,
Raffles Boulevard, Raffles Ave, Stamford Rd, Orchard Rd, Penang Rd,
Somerset Rd, Grange Rd, Orchard Boulevard, Tomlinson Rd, Tanglin
Rd, Orchard Rd, Bras Basah Rd, Raffles Boulevard, Republic
Boulevard, (ECP), Airport Boulevard, (T1 Boulevard), (T1 Basement
Dr), PTB 1, (T1 Basement Dr), (T2 Basement Dr), PTB 2, (T2 Basement
Dr), (T2 Boulevard), (Airport Boulevard), (T2 Boulevard), (T2
Departure Dr), (T2 Link North) and Changi Airport PTB Coach
Park.
( ) denotes express sector.