- Air Berlin was a German airline that operated from 1978 to 2017. It was one of Germany's largest airlines and was headquartered in Berlin. Air Berlin operated both domestic and international flights to destinations in Europe, North America, the Caribbean, and Africa. The airline had a fleet of both narrow-body and wide-body aircraft and was known for its low-cost model. In 2017, Air Berlin declared bankruptcy and ceased operations. Some of its assets were later acquired by other airlines, including Lufthansa and easyJet.