ORD CO 737 base & IAH UA 320 base next year is my guess. As a sidenote, I looked up some of these flts on "Flying Together" (bored) and sure enough some of them start in January. Of course several of the "UA" routes are actually Skywest or Mesa (RJ's). IAH-ATL for example. No surprise there. SCOPE IS EVERYTHING! Don't give an inch.