Air Berlin PLC & Co. Luftverkehrs KG (stylized as airberlin or is Germany's second largest airline, after Lufthansa, and Europe's sixth largest airline in terms of passengers.
The airline operates an extensive semi-low-cost network including holiday destinations in the Mediterranean region, the Canary Islands and North Africa as well as intercontinental destinations in Southeast Asia, the Caribbean and the United States.

Air Berlin concentrates on serving major German and European cities to attract business traffic. A total of 23 German cities are served, more than any other airline. Its largest hub is Berlin-Tegel Airport, followed by Düsseldorf Airport. Other important destinations are the focus cities Nuremberg Airport and Son Sant Joan Airport, Palma.

On 26 July 2010, the Oneworld airline alliance announced that Air Berlin had been invited to join. Full membership is planned for the start of 2012.
The airline is headquartered at the Airport Bureau Center in Charlottenburg-Wilmersdorf,Berlin. Air Berlin's parent company, airberlin group or Air Berlin PLC, is publicly traded
In December 2010, it had 8,900 employees. The airline (including subsidiaries) carried 33.6 million passengers in 2010.

Dutch description below:
Die Air Berlin PLC & Co. Luftverkehrs KG (im Außenauftritt meist Air Berlin, airberlin oder ist die zweitgrößte deutsche Fluggesellschaft mit Sitz in Berlin. Sie beschäftigt mit Stand Juni 2011 rund 8.900 Mitarbeiter und verfügt über eine Flotte von 170 Flugzeugen