Alaska Airlines’ 85.1 percent on-time arrival rate ranked it as July’s most punctual major North American airline,

according to FlightStats. North American carriers on average got 77.9 percent of flights to the gate within 15 minutes of their scheduled arrival times last month. Among the 13 largest carriers, WestJet (83.4 percent), Delta Air Lines (82.1 percent), American Airlines (78.3 percent) and JetBlue Airways (77.91 percent) also had above-average on-time rates. Air Canada (77.7 percent), Virgin America (77.7 percent), US Airways (77.3 percent), United Airlines (75.4 percent), Southwest Airlines (74 percent), Frontier Airlines (73.1 percent), Spirit Airlines (70.4 percent) and Allegiant Air (62.5 percent) had below-average on-time performance.