Originally posted by JerryFF:
This may not be an important factor for you, but I think an advantage of PHL is that the train goes right to each terminal - no need for taxis or shuttles or (highway) traffic jams.
It's a big factor for me!
DCA can be reached via train as well.
DCA is usually more expensive, but it just might be worth it to actually get out on time. Or I can try the JFK-DCA-DFW method. Hmm Hmm Hmm