Ostrava is a city in the borderland of Moravia and Silesia in the Czech Republic. It is the third largest city in the Czech Republic (Population 336,909) , however it is the second largest urban agglomeration after Prague. Ostrava has a main train station (Ostrava hl.n.) with regular direct trains to Prague, Brno, Warsaw, Moscow and Budapest. Journey times are just under 4 hours from Praha hl.n. station or approximately 3 hours with the Pendolino train from Praha-Hl.n. station as well. The main bus station in Ostrava is Ostrava ??AN. Student Agency offers 5 buses a day from Prague, via Brno, but the total journey time is 5 hours and 20 minutes. Ostrava has an international airport called Ostrava Leos Janacek Airport with regular services to Prague (Czech Airlines, 4 times daily), Vienna (Central Connect Airlines, 2/3 flights on weekdays), Heraklion (Smart Wings, twice weekly), Rhodes (Smart Wings, twice weekly), Thessaloniki (Smart Wings, twice weekly) and Palma de Mallorca (once weekly). Hourly buses from the airport to Ostrava, a 35-minute ride, depart between 7:15AM and 10:15PM, tickets can be bought from drivers.