As the competition among airports in China becomes increasingly intense, airports have to introduce new services to enhance their competitiveness. As a result, the market share of the airport may increase and the increment in market share would last for a long period which is usually called the cultivation period. Shortening the cultivation period is the key to improve the efficiency and the effectiveness of new services. To maximize the increment in the market share and minimize the cultivation period as well as operation cost, a multi-objective model is established to dynamically optimize the timetable of airport coach during the cultivation-period. By solving the model, the timetable on every time slice during the cultivation period and the curve describing the increment in the market share are obtained. The interaction between passengers’ airport choice and the timetable, as well as the dynamic relationship between the market share on the pre-order and follow-up time point is described explicitly in the model. Results indicate that the dynamic timetable could shorten the cultivation period of the new service and impel the market share to grow rapidly.