thanks again. this info is REALLY helpful. We are in the first row of EC on the BWI-MSP flight so we should deplane pretty quickly. As for the return flight, we have a 90 min layover in DTW so I'm not worried about that at all. With the moving sidewalks in DTW, that should be pretty easy. And as for preboard, I think she'll be ok boarding w/ me as a Plat. She does not have impaired walking at all, she's just not FAST. Thanks again to everyone. this is very helpful! I was thinking, too, that there HAD to be a time in my life as a toddler when my mom was worried about me not being able to walk too fast. Funny how roles reverse!