Air travel congestion

Air travel is just a terrible experience these days. There are many reasons for this. Point fingers and blame almost anyone in the industry. I doubt it's going to improve anytime soon. This fact aggravates me the most:

One of the big reasons flying is so miserable is because airlines schedule more flights at desirable times than airports can handle—much as they sell seats to more passengers than their planes can hold. On a typical Tuesday morning in August at New York's John F. Kennedy International, the airport has enough capacity for around 44 departures between 8 and 9 a.m. But airlines schedule 57, guaranteeing delays, even under perfect conditions.

That is just absolutely moronic. There is no excuse for scheduling more flights than an airport can handle in a given time period.