Originally Posted by
J.T. Nudge
I'm planning to fly from Dulles to Portland, Oregon, via Denver. Is it possible for me to take the AeroTrain to Concourse C and then walk through Concourse C to get to Concourse D, just in case my gate is there? I really don't like the mobile lounges.
That's easily doable, it will just take you more time to make that walk (~10-15 minutes extra)