Originally Posted by
jimaras08
Thank you for your answer! I was not aware that the companion must have a SkyMiles account entered. I'd assume that FlyingBlue would not be enough either?
I was all set to say that I didn't think a FB number would work, but I see under "How to Upgrade with Travel Companions" here:
https://www.delta.com/us/en/skymiles...llion-upgrades
"A Medallion Member and one traveling companion may both enjoy a Complimentary Upgrade when traveling on Delta and Delta Connection carriers, as long as that companion is a General SkyMiles Member, Medallion Member,
or partner airline elite member*"
the asterisk is
"*Partner airline elite members are only eligible for Companion Upgrades on paid tickets and Companion Certificates."
so as long as you aren't on an award ticket, looks like the answer is "yes"