As compiled by the Civil Aviation Administration of China (CAAC), here are the top ten airline companies that wasted travelers’ time last year with the longest delays:

1. Spring Airlines 春秋航
2. Lucky Air 祥鹏航空
3. Shanghai Airlines 上海航空
4. China Express Airlines 华夏航空
5. Chongqing Airlines 重庆航空
6. Xiamen Air 厦门航空
7. Shenzhen Airlines 深圳航空
8. Tibet Airlines 西藏航空
9. Hebei Airlines 河北航空
10. China United Airlines 中联航

Spring Airlines is the worst of the lot, scoring an average rating of just 56 percent punctuality. Shenzhen Airlines is no stranger to delays, having been ranked the nation’s worst in 2006.

Related:

• Could Flight Delays in China Finally Be a Thing of the Past? Country to Open More Commercial Airspace
• Enough with Flight Delays, Consumer Group Says Airlines Need to Compensate Passengers
• Fights, Smashed Computers, and Food Thrown in Riot at Shenzhen Airport Over Delayed Flights