I know that UA uses Terminal 1 at ORD, and I am flying on United Express (operated by Air Wisconsin) flight 5816 to ATL and noticed at United.com that for the past two days it has left from Terminal Two. What does this mean? So, do I just figure that UA Express uses T2 and check-in there? Or do I go check in a T1? I am just bringing two backpacks (one for me, one for my dad) on the CRJ, so I do not need to check anything. If I just use the EasyCheck-In Online, will it tell me my gate so I know? I'd hate to go to the wrong terminal. If I do, how do I get to other terminals (I have never used ORD, I always use MDW).