Method for providing vessel seaway and providing system of vessel seaway

The service vessel passage way are provided. Providing the vessel route method, comprising: receiving the route information of the ship, on the basis of the received flight information, which acquires performance information of the weather information, and the ship on the step of generating a plurality of flight path, the resultant plurality of flight paths step, step based on the acquired weather information, and performance information for predicting the fuel consumption for each of a plurality of flight paths, the method comprising: selecting an economy flight path of a plurality of flight path based on the estimated fuel consumption amount, and the selected economy It includes the steps of providing a flight path to the ship.