Join Date: May 2001
Location: Vancouver, BC, Canada
Programs: AC SE100K MM, Bonvoy Lifetime Titanium, Accor Platinum, National Emerald Club Exec Elite
Posts: 1,144
Don't know why I'm so lucky, but I frequently receive comp upgrades simply by asking politely. This works on both AC and UA. I am most successful out of YVR, ORD and LGA.
I am least successful out of YYZ, where I find the gate agents in general to be amongst the rudest and most ambivalent about their job of any in North America.