Originally Posted by
Scott6067
I don't understand how you feel CO upsells more than UA as UA upsells first, E+, and premier lines at security. While these may not be options that you get as a 1K it is something I see day in and day out work at the UA counter.
The difference with UA's First Class upsell is that UA clear elites waitlisted for upgrades first prior to upsell. Upsell is only offered when there NF/NC>0.