Originally Posted by
jordyn
For advance purchase, DCA->JFK flights are usually super cheap. I don't understand why you'd ever consider the Amtrak option for connections since AA will protect you on valid connections even on separate tickets.
With three IAD-LHR non-stops and access to BA's worldwide fortress hub without having to deal with micro-hops on the East Coast and, if you really want to fly from DCA, a good connection through CLT, the entire old US framework through PHL doesn't make sense.