Oh yea, all United Express flying is Mainline United Flying. I'm sure United LOVED the idea of running 737's from ORD-MKE or ORD-MSN or ORD-MLI

All of the routes that are flown by express carriers, ESPECIALLY the 50 or 66 seat jets are just that, EXPRESS.

When you get to EMB-190's or CRJ-900's, then MAYBE that can enter the arguement of "that's United Flying"

I'm surprised people aren't saying "The Dash-8 flying or EMB-120 turboprop flying is mainline pilots flying as well!"