You can check out the routes and where to board here. airportbus.plotigo.app/PickupLocations?route=Public%20Area%20(Direct%20Service) The videos show the route of the shuttle bus between terminals, and the bus stops shown are accurate. Note that there is no shuttle bus between Terminal 3 and Terminal 4, but you can use the MRT to head between Terminal 3 to Terminal 2 for the shuttle bus.
Where can I catch a bus to change planes at Terminal 4?
You can check out the routes and where to board here.
airportbus.plotigo.app/PickupLocations?route=Public%20Area%20(Direct%20Service)
The videos show the route of the shuttle bus between terminals, and the bus stops shown are accurate.
Note that there is no shuttle bus between Terminal 3 and Terminal 4, but you can use the MRT to head between Terminal 3 to Terminal 2 for the shuttle bus.