1. Demand: Quanzhou has a large demand for air tickets, while Xiamen, China has a relatively small demand for air tickets. For example, during holidays and tourist season, the demand for flights in Quanzhou will increase, which will lead to an increase in air ticket prices.

2. Number of flights: The number of flights at Quanzhou Airport is relatively small, and the competition among airlines is relatively small. As a large aviation hub, Xiamen Airport in China has a large number of flights, fierce competition among many airlines and relatively low ticket prices.