Is it possible to upgrade HNL-NRT-HNL?
Aloha! I'll be visiting Japan in November with the following routing: ITO-HNL-NRT-ITM and the opposite on the return. I booked the tickets through United and the flights have United codeshare numbers even though the segments are operated by ANA. I'm interested in upgrading the HNL-NRT and NRT-HNL segments and wondering what options I have.
If the codeshare is a problem, is there any kind of workaround that I can do to clean things up?
Thanks for the advice!