Finnair expands codeshare cooperation with airberlin Finnair is expanding its codeshare cooperation in Europe with fellow oneworld alliance member airberlin. Finnair’s AY designator will be added to selected services operated by airberlin or its subsidiary Niki to Bucharest, Catania, Chania, Cologne, Larnaca, Malaga, Naples, Palma de Mallorca, Paphos and Stuttgart. Finnair passengers will be able to connect to these cities via Berlin, Düsseldorf, Frankfurt, Munich, Vienna or Zurich. Most of the new codeshares supplement Finnair’s own nonstop services from Helsinki, allowing passengers more travel dates and a wider choice of schedules. The codeshares are planned to take effect from early May. Finnair and airberlin have been codesharing across Scandinavia and Central Europe since 2010.