What was the rank of Air Berlin in terms of passengers carried at its peak?
Europe's fifth-largest airline
Europe's tenth-largest airline
Europe's fifteenth-largest airline
Europe's twentieth-largest airline
Answer
At its peak, Air Berlin was Europe's tenth-largest airline in terms of passengers carried. This is a testament to the airline's size and reach during its years of operation.
Air Berlin: From Takeoff to Turbulence - How much do you know about Germany's defunct airline?