Every time one of my flights is delayed, it’s because of Chicago. It doesn’t matter whether I’m flying through there or not. Wherever I am, the city finds me and messes with my itinerary. Is it my imagination that it’s the absolute worst? Actually, no. It turns out once you crunch the numbers, the #1 worst airport for on-time departures is Chicago Midway. The #2? Chicago O’Hare. If you add up the minutes from all delayed flights out of the Windy City in 2012, you get eight years. So which of the major airports give you the best chance of getting where you’re going on time? Here they are, by seconds delayed per total passengers boarded in 2011 (most recent available).