Perishable export products are usually shipped to their international destinations by air. This export process is complex and involves many agents such as airlines, truck companies and manufacturers. Two of the major problems that transport companies face every day are (1) traffic and (2) congestion of trucks at the unloading platforms at the airports. In general, the lack of coordination between such agents amplify these problems. We introduce a simulation- optimization approach for the coordination of truck companies that deliver export flowers to international destinations in the context of smart cities. The proposed method was tested with real-time traffic and status of the airport cargo areas and show drastic improvements in comparison with the current situation. The proposed method can be embedded in smartphone applications and can use existing technologies and can be adapted to current practices.