An airline is a company that provides air transport services for traveling passengers and/or freight. Airlines use aircraft to supply these services and may form partnerships or alliances with other airlines for codeshare agreements, in which they both offer and operate the same flight. Generally, airline companies are recognized with an air operating certificate or license issued by a governmental aviation body. Airlines may be scheduled or charter operators.
1930s German poster advertising a weekly airmail service from Deutsche Lufthansa, Syndicato Condor and Deutsche Zeppelin Reederei
A 1919 advertisement for the Dutch airline KLM, founded on October 7, 1919, the oldest running airline still operating under its original name
The Handley Page W.8b was used by Handley Page Transport, an early British airline established in 1919.
Junkers F.13 D-190 of Junkers Luftverkehr
Civil aviation is one of two major categories of flying, representing all non-military and non-state aviation, both private and commercial. Most countries in the world are members of the International Civil Aviation Organization and work together to establish common Standards and Recommended Practices for civil aviation through that agency.
A British Airways Boeing 747-400 departs London Heathrow Airport. This is an example of a commercial aviation service.