There's a privately-operated feeder bus route from Changi
Airport's passenger terminals to the Airfreight Centre, and if I'm
not wrong, it will cost you 70¢ for a ride. Operating hours, I'm
not too sure - you got to ask someone for that.
I think a better way could be for you to ride route 89 straight
to the Airfreight Centre from Sengkang, especially if you live in
an area of Sengkang that is served by route 89 - direct, and you
don't have to worry about the operating hours. If you are going
there during morning rush hours, or going home during evening rush
hours, and are willing to splurge a bit, you can also try the Fast
Forward version route 89e.
i start work at 8.30 in the morning. So will be taking bus at
around 7.30. So u mean can just take 89 straight into the
airfreight area? No need to take any other bus? How long is the
journey?