On the bright side, overall U.S. airlines had their best January in four years, when it comes to arriving on time. The airlines averaged a 78.7 percent on-time arrival rate in January.
Midway worst airport for Jan. on-time departures
March 9, 2010 (CHICAGO) The U.S. Dept. of Transportation says 68 percent of Midway's flights got off on time. O'Hare airport was third from the bottom with 74 percent.