A Flight Route is one of the most important intangible assets of airline operators. A Flight Route is a route map which provides details of the path to be followed by an aircraft flying between airports. The route is an airway which details the outline of the corridor within which a specific aircraft can fly to connect one specified location to another together with the altitude. A Flight Route qualifies as intangible assets because they can be recognised and the economic value accurately measured. Flight Route grants airlines a competitive advantage and incremental economic benefits to the owners. Business valuation analysts estimate the fair market value of flight route by applying techniques under the cost, market, and income methods.