America's Best and Worst Airports for Flight Delays

10 Best
No. 7 George Bush Intercontinental Airport (IAH)

Flights Delayed: 16.3%

This year, if an airport just maintained its on-time record, it was getting ahead of the crowd. This sprawling Houston airport made its way onto the top 10 last year for the first time in years, and has even upped its standing this year. The only time it dips under 75 percent for on-time departures is during the after-dinner rush.

Best Time Window: Before 10 a.m.

Worst Time Window: 8–9 p.m.