Originally Posted by
AllYourBaseAreB
EWR is only 65% United,
BWI is only 65% Southwest,
ATL is 72% Delta,
So PHL at 69% AA seems consistent with other fortress hubs for other airlines in the area. SW, Frontier and DL are all around 6% for 2019 in PHL
PHL had the most international transatlantic departures for any AA hub. Its the gateway to Europe, I would say it’s a fortress hub. CLT is bigger domestically, with a few transatlantic and carribean routes.