The Sapsan to St Petersburg departs from (and returns to) Moscow’s Leningradsky Train Station, at Komsomolskaya Ploshad 3, Metro Komsomolskaya. The train on the Nizhny Novgorod to St Petersburg route comes through Moscow’s Kursky Train Station, Zemlyanoi Val, 29, Metro Kurskaya. On the St Petersburg end of both routes, the Sapsan uses the Moscovsky Train Station, Nevsky Prospect 85, Metro Ploshad Vosstania.