I appreciate the feedback. With Ithaca being my home town and much of my travel being in the US domestic market, US has served my needs with frequent flights scheduled throughout the day. AA/Eagle dropped the ITH market nearly two decades ago and never returned.
I recognize it is very early in the US-AA process as well. No telling what may emerge in the months (years) ahead. Just wanted to gauge options in advance.
DL has access to many places, but there are few ITH-DTW flights. Unless things change, DL would not be one of my preferred options.