Jiuyuan Airlines and Changlong Airlines have their own characteristics, and their specific qualities vary from person to person.

1. Jiuyuan Airlines focuses on high-quality aviation services, and its price is higher than that of Changlong Airlines.

2. Changlong Airlines focuses on low-cost airlines with favorable prices and lower service quality than Jiuyuan Airlines.

Generally speaking, Jiukong and Changkong have their own characteristics and advantages. Which one is better depends on your needs and budget.