I didn't read the previous posts....just a few comments.
Latest word....DAL will hire 50 - 65 a month....for eternity.
From a very, very reliable source. Spoke to him personally.
Also, it seems like a majority of the Flow / Preferential Interview folks are not completing the process. It's not a guarantee....just an initial offer. Take it seriously & apply yourself. With the retirements coming up, you'll be glad you did.
Giddy Up.