America's Best and Worst Airports for Flight Delays 2011
Backyard Productions / Alamy
No. 5 Dulles International Airport (IAD)
Flights Delayed: 16.0%
Who says you can’t stage a comeback in our nation’s capital? The much-maligned Dulles was in the worst 10 in 2008 and 2009, but has fought its way back to punctual glory.
Best Time Window: Before 9 a.m.
Worst Time Window: 8–9 p.m.