A FlyerTalk Posting Legend
Join Date: Sep 2009
Location: Minneapolis: DL DM charter 2.3MM
Programs: A3*Gold, SPG Plat, HyattDiamond, MarriottPP, LHW exAccess, ICI, Raffles Amb, NW PE MM, TWA Gold MM
Posts: 102,617
It worked fine for me at the DM window on a couple domestic award flights on routes/times that I would have expected to have good chances for the upgrade, certainly not transcons or very elite heavy business flights. This experience was a while ago, not too long after DL announced that we could be upgraded on domestic award tickets.