Yes, BWI usually connects via ORD, so that's one breif segment. BWI is also a smaler airport, so it's easier to get into/out of, security lines are long, but quick (although no premium security lines). Unfortunately the RCC closed a month ago, and there isn't much in terms of finding electric outlets at the gate. Still lots quieter, and a good way to pad segments.

FYI, if you are checking bags, give yourself a bit of extra time as the check-in, even Premier can be a bit slow in the early AM because of lots of military passengers with special additional bags, and the system usually locks up and it seems to take every check in counter agent to congregate around one terminal for 5 minutes to fix it.