"Table 1-59: Major U.S. Air Carrier Delays, Cancellations, and Diversions",,,,,,,,,,,,,, ,1988 ,1989 ,1990 ,1991 ,1992 ,1993 ,1994 ,1995 ,1996 ,1997 ,1998 ,1999 ,R2000 ,2001 Total operations,"5,202,096","5,041,200","5,270,893","5,076,925","5,092,157","5,070,501","5,180,048","5,327,435","5,351,983","5,411,843","5,384,721","5,527,884","5,683,047","5,967,780" Late departures,"730,712","883,167","753,182","621,509","617,148","661,056","729,960","919,839","1,102,484","944,633","1,014,904","1,091,584","1,319,153","1,180,673" Late arrivals,"1,042,452","1,208,470","1,087,774","890,068","902,567","931,437","960,254","1,141,647","1,362,702","1,193,678","1,227,741","1,320,591","1,557,784","1,343,608" Cancellations,"50,163","74,165","52,458","43,505","52,836","59,845","66,740","91,905","128,536","97,763","144,509","154,311","187,490","231,198" Diversions,"14,436","14,839","15,954","12,585","11,384","10,333","12,106","10,492","14,121","12,081","13,161","13,555","14,254","12,909" ,,,,,,,,,,,,,, KEY: R = Revised.,,,,,,,,,,,,,, ,,,,,,,,,,,,,, "NOTES: Late departures and arrivals are strongly seasonal and are affected by weather and heavy demand in winter and summer months. The term ""late"" is defined as 15 minutes after the scheduled departure or arrival time. Major air carriers are the 10 largest U.S. air carriers. A cancelled flight is one that was not operated, but was listed in a carrier's computer reservation system within seven calendar days of the scheduled departure. A diverted flight is one that left from the scheduled departure airport but flew to a destination point other than the scheduled destination point.",,,,,,,,,,,,,, ,,,,,,,,,,,,,, "SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, Office of Airline Information, Airline Service Quality Performance data.",,,,,,,,,,,,,, ,,,,,,,,,,,,,, ,,,,,,,,,,,,,,