Dentsche Lufthansa AG is a German Airline and is the second largest carrier of Europe. The Headquarters of this Airline is in Cologne. Lufthansa AG is one of the 5 establishing members of the Star Alliance which is the biggest Alliance of the World. The Lufthansa Airline has the biggest fleet size of the World including 700 airplanes altogether. The essential center point of the Airline is Frankfort Airport.