OPTIMIZING AIRLINE REVENUE2The optimization of sales for airlines has become extremely difficult. Customers have become more motivated; their buying behavior has changed and costs are being pushed downby a competitive market environment.The introduction of a new model of aircraft adds additional difficulty, for example, pilot training may have a longer lead time than schedulers had consideration (Cook &; Billig, 2017). Developing schedules is an iterative process, as revisions are compiled in response to operating department inputs. In the end, the plan is a compromise that imposes pressures on certain operating units or requires schedulers to adopt a plan that does not achieve their performance and profitability targets. Aggressive schedule usually leads to chaotic recoveries from erratic activities, lowering revenues and destroying passenger and loyalty ties. Software applications are available for the identification of optimum start times, maximize network flows of travelers, and the expense of modeling(Cook &; Billig, 2017). Conceptually, a single software program should be able to generate an optimum operation schedule, it's just a major problem of optimization: maximizing profits subject to constraints.