Four of the five most popular US airline routes involve a New York City airport

Check out that graph above, via Quartz and via PlaneStats. I've always heard that LGA/JFK --- > MIA is a thing (makes sense with warm weather and all), and I used to thump that stat for days at airport bars back when because my wife and I started long-distance -- me in NYC, her in Miami -- so I thought I was part of something really broadly special. It…