Originally Posted by
SkyMilesTeam
Hi everyone, wanted to clear up any confusion surrounding Delta One suite upgrades. Diamond Medallion Members can use one Global Upgrade Certificate to upgrade directly to a Delta One suite from any cabin of service offered on the flight – including Main Cabin (excluding Basic Economy).
It's nice to know Delta monitors Flyer Talk, although me wonders why Delta don't step in more often to clarify questions. Hopefully, this also means they gather feedback from members posted here and share with the appropriate internal corporate channels.