Czech Airlines

Czech Airlines (abbreviation: ČSA, Czech: České aerolinie, a.s.) is a Czech airline brand and holding company. Established in 1923, it was part of the privately owned Smartwings Group since 2017. After filing for bankruptcy in 2021 and undergoing reorganization, it ceased independent air operations and was transformed into the holding's parent company on 26 October 2024. In December 2025, it was announced that the Turkish low-cost airline Pegasus Airlines had signed an agreement to acquire the holding in a deal worth €154 million. As an airline, between 1923 and 2024, it operated as the flag carrier of Czechoslovakia and subsequently the Czech Republic. Until ceasing air operations, it was the world's fifth oldest operating airline. Its hub was Václav Havel Airport Prague. It was the first airline in the world to fly regular jet-only routes (between Prague and Moscow). The airline ran a frequent flyer programme called "OK Plus", named after the airline's International Air Transport Association designation, as well as the term of approval; OK also featured prominently in its previous livery, and was the prefix of Czech aircraft registrations. From 2001 to 2024, it was a member of the SkyTeam alliance. The last scheduled flight of Czech Airlines was flight OK767 on October 26, 2024, from Paris Charles de Gaulle Airport to Václav Havel Airport Prague, operated by an Airbus A320-214 registered OK-IOO.