You'll be fine then. Either way, you'd be re-checking your bags and re-clearing security. And you have to walk in that direction - AA's flights leave out of the C/D concourses, which are on the opposite side of the airport as the international arrivals hall. I don't recall the international arrivals hall having premium lines/pre-check, either, but I terminate in SEA so this is just me looking as I walk by. I could be wrong about the latter. You may even get through faster, given that you won't wait in line to recheck your bags on AA or AS using their premium check-ins landside, and using precheck at checkpoint 4.