Thousands of large and small airports serve private aviation. Guests use a special terminal called a fixed base operator terminal, or FBO. These facilities are friendly and comfortable. FBO personnel know whom to expect, and they both greet and escort guests to the aircraft for boarding. Guests departing on Seabourn Private Air from a large commercial airport can expect to use a similar FBO facility away from the main terminal. Passengers on commercial aircraft rarely ever even know these elite FBOs exist.