From here you can take the Aeroexpress train to Kievskaya station, a bus or marshrutka to metro stop Yugo-Zapadnaya (last stop of the red line). By far the most convenient and fastest option is to take the Aeroexpress train to Kievskaya which is connected to the metro circle line. The first Aeroexpress train leaves at 06:00, the last at 24:00. Trains terminate at Kievsky Station.