Originally Posted by No1racer

Hey All in the UA Forum,
I am exclusively a CO flyer, but am trying United for a future trip in may on two segments since CO is entering *A after Oct 24th. I am flying CO from IAH to DEN (757-200 both) and UA from DEN to ORD (767-300 new B-class both) (and vice-versa) to try out both airline's business class hard products (Q-Up deal). On the way back, I have only a 43 minute connection (arv 10:42am/dep 11:25am) through DEN transferring from the B 30-series gates to A43-47 I think. Is that enough time? Any tips? Should I contact CO to inoform them of my tight connection? The last few days seem to have been delay free into DEN. Thanks for your time.