A free Shuttle Bus on weekends/ holidays runs every 90 minutes to/from Ang Mo Kio, Sengkang, Toa Payoh MRT station & Changi business Park.
A free shuttle bus runs serves the Changi Business Park from both Terminal 3 (Basement 2 Bus) and Terminal 1 (Basement 2 B) - stopping at the IBM building.
Public Bus 36 / 36A to the City runs between 6am-midnight, takes an hour and stops at the basement bus bays of T1, T2 ,T3 & T4. You need the exact fare ($2.50).
For more bus transportation information visit either (a) SBS Transit at: www.sbstransit.com.sg/iRIS/overview.aspx - or (b) SMRT Buses at www.smrt.com.sg/Buses/eBusGuide.aspx.
Coach service to Johor Bahru's Larkin Terminal in Malaysia - offered hourly by Transtar Cross-Border, starts at bus stops in front of the Terminals* and ends at Kotaraya II Terminal. Transtar Travel has a counter in the Arrivals Hall of Terminal 2, but you can also inquire at any of the Information counters in Arrivals Halls of all terminals.
* The TS1 coach pick up at the Arrivals Hall at Coach Bay 12 for T1, Coach Bay 09/10 for T2, and Coach Bay 1 for T3; first bus depature from Changi Airport 8:15am - last 11:15pm; first bus departure at Johor Bahru 5am - last 9pm.
The MRT to the city runs 5:30am-11:18pm, and takes 27 mins. Tickets can be bought at the station. The MRT City Train station is on the basement level of T2 & T3, accessible from Arrival Hall & Departure Check-in Hall by escalators and elevators. (T1 passengers can use the SkyTrain to get to T2 or T3, while Budget Terminal passengers can use the free shuttle bus to T2.)
The First train from the City arrives at Changi Airport station at 5:26am (Monday-Saturday); at 5:54am Sundays & holidays. (change trains to eastbound train at Tanah Merah staton.
To get to the City from Changi Airport, passengers need to transfer to the west bound train at Tanah Merah train station. (The last train service departing Changi Airport station - allowing transfer to the last west bound train at Tanah Merah station - is at 11:18pm.)
For more information open either (a) the SMRT (Singapore Mass Rapid Transit) site at: www.smrt.com.sg - or (b) open the North East Line site at: www.sbstransit.com.sg/transport/trpt_nel_overview.aspx