Hi,

I just booked UA 876 DEN-NRT on 11/15 in H, and upgraded using miles. The flight actually has a plane change in SEA. Seatcounter says there are NC seats available for SEA-NRT, but none for DEN-SEA. However, United is showing the entire upgrade as waitlisted.

I called the 1P line, and the agent told me she couldn't do anything, although the SEA-NRT are indeed available; I would have to rebook separate segments. Is this my only option to get the SEA-NRT upgrade confirmed?