I would also like a clarification as to how this works. I'm a NW Plat traveling on a Y-Fare. When I booked my ticket, FC was sold out (showed A0 D0 Z0 R0). Today, 1 seat showed up in FC. My reservation did not have a 'Y-Upgrade' button, so I called CO Reservations. They said that since I've inputted my NWA Elite #, I'd have to call NWA and have them process the complimentary upgrade. Didn't sound right to me, but I called NWA anyway. NWA said they can only process manual Y-Up's when flying NW metal. The only thing they could do w/my CO itinerary was upgrade me using my miles. Not what I had in mind...

Next, I called CO.COM support, where I was informed that the 1 FC seat was just snatched up and nothing was available in FC...

In case another seat opens up, what's the correct process - how can I, as a NW Elite, get upgraded on a CO Y-Fare (after booking my ticket?)