FBO stands for "Fixed Base Operator," which is a service provider at an airport that offers various support services to aircraft and their passengers. These services can include fueling, maintenance, hangar space, and ground handling. FBOs are essential for both private and commercial aviation, ensuring that flights operate smoothly and efficiently. Typically located at general aviation airports, FBOs cater to private jets and smaller aircraft. They provide amenities such as lounges, conference rooms, and transportation services for passengers. FBOs play a crucial role in enhancing the overall flying experience for travelers and pilots alike, contributing to the aviation industry's functionality.