Originally Posted by
IAH-OIL-TRASH
ANA's Premium Economy seats aren't in the Economy cabin - it's considered it's own cabin. That being said, I don't know what the problem is. ANA's E fare code should be Premium Economy class to Business class upgradable.
UA E is an economy fare. I mean, Occam's razor and all that. You'd have to go out of your way to break the logic, but ... especially since you are seeing an economy seat map and all ...