Originally Posted by
flywithmiles70
Thanks KVS. Learned a new feature of your tool. . . very cool. So the fact that DL shows O availability but AF does not am I able to use my Delta miles to upgrade on my flight purchased directly from AF? Are there any other options for upgrading now that I'm seeing availability from DL?
You may be able to apply a SkyTeam Upgrade (if your current ticket is in
Y/B/M class).