Hi,
Got a BOS-SFO flight coming up, operated by DL, marketed by LY.
Am I eligible for complimentary upgrades? I remember reading here somewhere that only at the airport but I cant find it anywhere now. When I log into my booking and go into the "complimentary upgrades" section it shows my booking as ineligible, so was wondering how I get myself on the upgrade list (if possible at all).
Thanks!