Airline Wikipedia open wikipedia design. An airline is a company that transports people and items using airliners. An airline may have as few as one airplane or a fleet of hundreds of airplanes. Most airlines offer regular flights between a group of airports. Related pages[change | change source] Air travel List of airlines This short article about transport can be made longer. You can help Wikipedia by adding to it. This page is based on a Wikipedia article written by contributors (read/edit).Text is available under the CC BY-SA 4.0 license; additional terms may apply. Images, videos and audio are available under their respective licenses.