国内航空统计公司飞常准发布的最新报告显示，我国主要机场的准点率仍然远未让人满意。
The punctuality rate of China's major airports is still far from satisfactory, according to the latest report published by local aviation statistic company VariFlight.
尽管2016年受调查机场的平均准点率同比提高7%至70.4%，但航班平均延误时长为33分钟。
Although the average punctuality rate of the surveyed airports rose 7% year-on-year to 70.4% in 2016, the average delay time was 33 minutes.
去年上海浦东国际机场通报的准点率最低，该机场仅有52.4%的航班准时起飞，平均延误时长为48分钟。
Shanghai Pudong International Airport reported the lowest punctuality rate last year. Only 52.4% of flights took off on time, with delays averaging 48 minutes.
北京首都国际机场的情况稍好一些，其准点率达60.7%。
Beijing Capital International Airport performed slightly better, with its punctuality rate reaching 60.7%.
西安咸阳国际机场的准点率为82.3%，在国内所有机场中位居第一。
Xi'an Xianyang International Airport outshone all other airports in China, with a punctuality rate of 82.3%.
中国民航局局长冯正霖表示，因天气造成航班延误的比例由2015年的29.5%增至2016年的56.8%。
According to Feng Zhenglin, head of the Civil Aviation Administration of China, weather accounted for 56.8% of flight delays in 2016, up from 29.5% the previous year.
他表示，2017年的目标是航班整体准点率维持在75%左右。
Feng said that the Goal for 2017 is to maintain an overall punctuality rate of about 75%.
中国民航大学经济管理学院教授李晓津表示，数量迅速增加的航班以及民用航空有限的空域是延误的主要原因。
Li Xiaojin, a professor at Civil Aviation University of China's Economics and Management College, said that rapidly increasing numbers of flights and limited airspace for civil aviation are the major reasons for delays.