Originally Posted by
secretsea18
I have had two flights booked on nwa.com that are/were DL coded, DL metal. Got upgrades at the 5 day window with no problem. Now, if I only can check-in too.
I always go to the DL.com website, make sure my WP # is there, and then select my seats in the Premium seats.
Good luck.
That is what I do also and have had no issues. The key is going to the Delta website.