On Time Arrivals 2019. F9 Worst..

• Frontier (73.1 percent) :o
• JetBlue (73.5 percent)
• United (75.2 percent)
• American (77.4 percent)
• Allegiant (78.7 percent)
• Spirit (79.5 percent)
• Southwest (80.2 percent)
• Alaska (81.3 percent)
• Delta (84 percent)