Originally Posted by
HIDDY
Are you sure? I find it hard to believe that you can't get a coach from Retiro to La Plata direct.
Even from my backwater there are two or three coaches a day to La Plata.
Looks like both Chevallier and Costera Metropolitana have buses going from Retiro to La Plata. But that's not direct from EZE as the OP asked for. He'd still have to get a taxi or MTL from EZE to Retiro and then the bus. It would definitely be easier/shorter to take the taxi to La Plata, although probably more expensive.