No, the luggage is too big for carry on (Plus i already have 2 additional carry ons: Backpack, and laptop bag)
I'm not sure what you mean as solving the problem, as I don't have one... yet? I don't mind checking in bag, I don't mind not having it for a few days after my Arrival to Seattle (A week even). I just want to know if and will they route the bag to SEA without me boarding my connecting flight (From AA to ALaska airlines).
The Layover is around 80 Minutes if that statistics matters.