AirTran Airways in January was the most punctual major U.S. carrier,

with an on-time performance ratio of 87.9 percent, according to FlightStats. It was followed by Delta Air Lines (85.8 percent) and US Airways (85 percent). Southwest Airlines ranked last among the eight major airlines, based on FlightStats data, at 75.5 percent. For all North American airlines, Hawaiian Airlines performed best in January, with on-time performance at 92.4 percent. Air Canada ranked last at 52.1 percent.