Originally Posted by
zoegksf
No, I don't want UA to change it. I want CO to change it. I fly paid Z/D/A SFO-IAH-MGA alot and I only get lounge access on the outbound @ IAH. Would be nice to also have it on the way back @ IAH and also @ SFO on departure

Can you fly UA metal for the domestic portions? I know there's limited service SFO-IAH-SFO on UA, but if you can make it work, you would get lounge access since you're flying *A internationally.
btw, your lounge access would be a function of your 1P credentials, not your int'l business ticket.