桃園機場近三年來，航班延誤的次數居高不下。 本文通過回歸和資料探勘的研究方法，發現抵達航班更容易出現航班延誤的狀況，特別是從桃園機場附近起飛的航班。 另外，廉價航空公司因其高效率的商業模式而獲得更好的時間效能。 這項研究證實了網絡傳播時間效應，也就是延誤狀況經常在當天晚些時候發生，並且進一步表明，機場若要提高準時性能，則航空公司的營運方式需要做改變。 / Over the past three years, Taoyuan Airport has experienced a high number of flight delays. By using regression and data mining methods, this paper found that arrival flights are more prone to delays, particularly from airports close by. Low cost carriers are also found to have better on time performance due to their efficient business. This study confirms the network propagation time effect where delays are more prone to happen later in the day and furthermore shows that should airports improve on-time performance, it would need to affect the way airlines operate.