I did a flip flop hike of the Appalachian Trail in 2016 where I hiked from Georgia to West Virginia, then bought an Amtrak ticket from D.C. to Bangor. What I didn’t notice was that there was a 4 hour delay in Portland waiting for the contracted bus to finish the route. I would have easily paid an extra $100 to just stay on a train and not waste all the time and effort getting to and onto a bus for a slow ride. Take it easy.