Originally Posted by
iceman77_7
Just flew through IAD last week, there is definitely mobile lounges to both the C and D gates from the A terminal. Lounge to D gates run all day and night, I believe the C gates have limited regular hours, outside of which you'll have to call for a lounge.
Interesting since I used to be based there, and I only remember a buggy going from the A to C gates only. I guess it has changed recently.