Based at Václav Havel Airport Prague (PRG), Czech Airlines (OK) is the national airline of the Czech Republic. It operates non-stop flights to more than 90 destinations in about 50 countries. Its destinations include points within the Czech Republic, as well as airports across Europe and in the Middle East and Asia. Karlovy Vary Airport (KLV) and Leoš Janáček Airport Ostrava (OSR) are the airline's focus cities. Czech Airlines' aircraft are configured with a two-cabin configuration, featuring Business Class and Economy Class cabins. The carrier is part of the SkyTeam alliance.