America's Best and Worst Airports for Flight Delays
Mira / Alamy
Worst: No. 4 O’Hare International Airport (ORD)
Flights Delayed: 26.5%
Last year’s second-worst airport lost another half point off its on-time percentage, but O’Hare still managed to improve two spots in the rankings—thanks to declining performance at other locales. More than 80 percent of flights leave this United hub on time until mid-afternoon, though by late night less than half do.
Best Time Window: Before 10 a.m.
Worst Time Window: 11 p.m.–midnight.