Originally Posted by
IADCAflyer
You sure its that high? IIRC, in FY 2013, US+Express held barely 70% of the share and AA was a minor player with maybe 3% of share. While technically meeting the 70% definition of a fortress, its not a strong fortress given that WN, DL, and UA have not insignificant operations there.
From the link in my perviously shared post - a bit lower than 79% -- probably slightly over 76%
http://www.phl.org/business/documents/msd2013.pdf
reported by City of Philadelphia - fiscal year ended June 2013
Based on "Enplaned Passengers"
US Airways Domestic - 34.6%
American Airlines Domestic - 2.9%
US Airways Express Domestic - 25.2%
US Airways International - 11.1%
US Airways Express International -1.7%
75.5 % excluding American Airlines Regional/Commuter
WN = 5.8%
DL = 4.6%
UA = 3.3%
There is 3.0% of Commuter/Regional traffic between AA, DL, UA and others that's not broken out