If you are coming to Moscow from St. Petersburg, chances are you will arrive at Leningrad Station, while Trans-Siberian services arrive at Yaroslavl Station. All three stations are located on Komsomolskaya Ploshchad, around 1 km from the Volga Hotel.
By taxi
The journey to the hotel by taxi will take less than 10 minutes in clear traffic, and taxis should cost $10-15. Alternatively, you can order a transfer with a driver to meet your train here.
By metro
Komsomolskaya Metro Stations is accessible from the concourses of all three stations. Take the metro from Komsomolskaya and go one stop counterclockwise on the brown circle line to Prospekt Mira. Change there to the orange line and travel one stop south to Sukharevskaya. The Volga Hotel is about ten minutes' walk from there.