Join Date: May 1998
Location: Reno, NV (RNO)
Programs: AA LT Platinum, AS, UA Premier Silver, DL, HHonors Gold, Marriott LT Titanium, Hyatt, IHG Platinum
Posts: 4,723
I realize DL does not permit upgrades on the dreaded L fares, but I thought the certificates could be used on all other fares. Is this not correct? (Sorry, I haven't flown Delta lately and don't have any DL certs. lying around.)