The complex is also accessible by the C line of the Buenos Aires Metro system and by numerous local public bus services.

Three stations are located opposite Plaza San Martín, a large park.

Retiro is the largest railway complex in Buenos Aires and more commuter trains arrive and depart from here than in any other station in the city.

As of 2015, the following companies operate regular services to the suburbs of Buenos Aires along three principal lines: In addition to its status as the hub of an extensive commuter railway network, Retiro stations are also the terminus of a few long-distance passenger services which provide access to cities in the north and west of the country.

As of 2015, state-owned Trenes Argentinos manages long-distance services to the cities of Córdoba, Tucumán and Rosario.