Washington D.C. (including Baltimore) - IAD transfer from Terminal D to B

I am arriving terminal D on UA domestic, and continuing from B on LH. What is the fastest way to get from D terminal to B. From airport map it looks like I can walk to C and then take an aerotrain to B. How long will it take end-to-end?

Is there a faster way to move between terminals?

Take the people mover. The walk from D to C is long, the walk from C to the Aerotrain is long, and the walk from the station at A to B is long.

How much time do you have between flights? What kind of shape are you in (EricH isn't kidding at the amount of walking that would be required).

It depends on where your gates are ... if you come in at a very low D gate number, turning towards C isn't horrible but the walk from C down to the aerotrain on top of it, makes it a long stroll. Go in the other direction and its a fairly short walk to the people mover that will take you to the main terminal, and a so-so walk to the aerotrain station to go to the terminal for LH - short ride and you're dumped right at the LH lounge (if that matters) and near their gates.

Safe Travels!

Go with the People Mover, unless you want a good deal of exercise!!