Help with award decision NRT-SEA
So i'm looking at January 6, 2013. I currently have OZ F LAX-ICN 12/25 on the outbound and inbound UA F NRT-SEA already booked using US Airways Miles.
I wasn't able to find any other way back to the west coast as my travel dates are firm. But I saw that NH has NRT-SEA in C, which might be 787 by the time Jan 6th hits. So my question is, would it be worthwhile to take that and give up the 30K extra miles?
This will probably be my last Intl trip for a few years so I wanted to go F to get the best experience and I was worried I would end up wasting it on an old UA 777.
Any help or suggestions would be appreciated! thanks!