1. It consists of header, fuel, take-off planning, waypoints and alternate airport. First, header is part of aircraft type and registration together with departure airport and destination. Furthermore, it covers speed of aircraft, flight level profile and estimate time to FIR crossing and fuel on board of the flight. Next, fuel is focused on minimum fuel as an essential factor in commercial aircraft and fuel uplift to destination and reserved fuel to alternate airport. Also, the uplift fuel will affect take-off and landing performance and may influence the payload. Another point is taking-off planning whose the ability of a flight to generate revenue is driven by how much payload can be carried. Then, waypoints are the body of the flight plan contains specific information corresponding to each waypoint. Lastly, alternate airport which is defined as the requirements of destination alternate determined by forecast weather and approach navigation facilities at the destination airport.