An unaccompanied flight, also known as a SOLO flight, is a type of flight in which the pilot is the only person on board the aircraft. This type of flight is usually done for recreational purposes or to gain experience in flying. It is also sometimes used for commercial purposes, such as when a pilot needs to fly to a remote location. Unaccompanied flights are considered to be more dangerous than regular flights due to the lack of another person on board to help in an emergency situation.