I'm sure this question has been asked a dozen times so I apologize for the redundancy.
I'm PHL-based and taking advantage of a SEA - ZFV segment for legitimate purposes. My flight arrives around 2:30 PM and the ticketed train is for 6:47 PM. There is a 4:28 PM NE Regional that would save us over two hours. Does Amtrak allow any flexibility in trying to hop on the earlier train? Any suggestions would be much appreciated.