I think it's safe to say that US Airways will be able to effectively run a daily out of BWI
, in addition to two dailies out of PHL
. I'm sure it happens on occasion, but I've never seen any indication that any large majority of BWI
passengers travel to PHL
to hop on flights. Also, depending on when the two flights leave PHL
, they can gather quite a bit of connecting traffic. One daily BWI
-BDA and two daily PHL
-BDA flights should do just fine.