Currently, the necessity of flight transportation is increasing rapidly. it because the flight transportation is more efficient than orther tansportation. there is another problem, espicially in tickets reservation is caused by different information representation in the web of airline company. in this paper, we would like explain about a model to reserve tickets by internet from multiple sources of airline company. this model will use semantic web that will support the decision support system. whenever the customer has filled the data that is required by the system, the system will give some suggestions of several flights which are suitable for the customer. this model will help the customer to pick the flight which is appropriate for them.