Originally Posted by
eric.chen3742
if it's anything like the 77w 9A and 9L should still be a solid bet.
Yes, but the OP is in Economy + on a K fare so not waitlisted with a GPU for the upgrade. OP did not mention if there's a miles + copay waitlisted but that would be something that would have been mentioned. Maybe OP would consider a TOD if the price is reasonable.
Even with an upgrade, 9A and 9L are already occupied. The best seats still available in Polaris Business on that flight, I think, are 3A and 5A.