The nearest metro stations, Rechnoy Vokzal on the dark-green line and Plenarnaya is on the purple line, are both a 20-minute bus ride from the Novotel Moscow Sheremetyevo. Unless your destination is on Moscow's northern outskirts, it is almost certainly easier to use the Aeroexpress rail link (the station is less than 100 m from the hotel) to Belarus Station in downtown Moscow. Belarus Station is served by Belorusskaya Metro Station, at an interchange between the brown circle line and the dark-green line.
