Originally Posted by
KPOM
ATL has no business being the world's busiest airport. It isn't a financial hub, or in the center of the country. The city is too small, as well. Delta just decided to make it its fortress. They could just as easily have done the same in Birmingham (and nearly did).
ATL is pretty central and ideal for a hub. It can capture Florida - Texas, Northeast to Texas, East -Florida, etc. It's closer to the West coast as well than a market like PHL, and it's closer to the heavy populated East than Texas (DFW, IAH) is to these markets.
To a lesser extent, it's worked for CLT's favor in competing over PIT, when US decided to keep CLT but close PIT.