Flight from PHL has not left (for SAN) yet so will miss the last flight to LHR from DFW and I have been rebooked to the first flight tomorrow. My only concern now is whether I will make it to DFW today. The flight at PHL is AA1621 and still has not left. I called AA and they said it has not been cancelled. Do I book a hotel room in DFW?? Not sure how bad the weather is in PHL, the person I spoke to said there had been no cancellations but flight is already over 4 hours late...