
An airline is a company that provides air transport services for traveling passengers and freight. Airlines utilize 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.

This is a list of airlines in operation that offer regular service to paying passengers from the general public. This list includes some airlines that offer charter service on a regular basis between fixed destinations. It also includes some airlines in the process of formation, planning to embark upon their maiden voyage soon.

Air Wales was an airline operating flights between Cardiff International Airport and Hawarden Airport in Flintshire commencing in 1977 and ending 18 months later.

ARCA Colombia was an airline company in Colombia founded in 1956, that ceased operations in 1997. The company was based in La Vanguardia Airport, Villavicencio.

ATC Colombia was an airline created in early 1992 with Colombian partners, from the United States and also Venezuela. Operating with Douglas DC-8 airplanes, it became the second Colombian cargo company. It ceased its entire operations in 1999.

A flag carrier is a transportation company, such as an airline or shipping company, that, being locally registered in a given sovereign state, enjoys preferential rights or privileges accorded by the government for international operations.

A Non-scheduled airline is a company that offers unscheduled air transport services of passengers or goods at an hourly or per mile / kilometer charge for chartering the entire aircraft along with crew. A non-scheduled airline may hold domestic or international licences, or both, and operates under the regulations prescribed by its respective civilian national aviation authority.