If I land at A and have to get to a low D gate (d5), which is faster: mobile lounge to D or running to train, taking train, running to C, and running to D.
I've never been to Dulles, and I've researched the (bizarre) setup of the airport. I'm curious about which is faster. I'm in reasonable shape if that matters.
I only have an hour layover (will be first off plane) so I'm just concerned about this short connection (tomorrow morning).