Two bus companies provide service to and from Singapore Changi Airport - SBS Transit and SMRT Buses.
They serve several destinations around Singapore. The SBS Transit 36 service goes to central Singapore terminating at the Regent Hotel. The first service is at 06:10, the last at 00:00.
Buses depart from the basement level of Terminals 1, 2 & 3. Follow the signs from the Arrivals level.