According to the National Aviation Academy, there are three main sectors of aviation worth mentioning. These sectors directly correlate with the industries one can enter after completing online aviation degrees. 1 Commercial aviation is the industry consumers and everyday people are most familiar with. This industry includes the commercial airlines most people use to travel for work or leisure, including major players like American Airlines and Delta Air Lines. That said, cargo transportation is also included under the umbrella of commercial aviation. 2 General aviation is a sector of this industry that operates on a schedule the commercial aviation industry cannot offer. The National Aviation Academy notes that flights in this sector are much more flexible and on-demand than those from major carrier networks. Examples of general aviation industry offerings include emergency medical evacuations, flights for agricultural purposes, business and pleasure flights operated by private pilots, and flights operated by various law enforcement agencies. 3 Military aviation is, not surprisingly, the industry of aviation that revolves around military operations. This industry focuses on facilitating aerial warfare, as well as using aircraft to protect government facilities and society at large. Military flights include those related to real missions as well as the training of military pilots and related personnel.