Just thought I'd offer an update on this (forgive me if this is common knowledge already, I don't fly DL much), I'm an Alitalia Freccia Alata (Skyteam Elite+) member flying DL domestically in a couple days. Was able to get preferred seating at time of booking several months ago, and just checked reservation today (a little under T-48) and was able to get complimentary Comfort+ seating.
Last edited by whatupbovice; Nov 23, 2015 at 7:25 am