Only 58 % of American Airlines flights were on-time in September . The number of monthly consumer complaints varies in proportion to the number of on-time arrivals , proving delayed flights equal unhappy fliers . Comment: Overall , U.S. airlines ' on-time rates improved over August , but dropped from September 2011 .
Only 58 % of American Airlines flights were on-time in September . Comment: Overall , U.S. airlines ' on-time rates improved over August , but dropped from September 2011 .