Originally Posted by
WineCountryUA
No but you can guest a person on another PNR into E+ and they can your premier checkin, security and boarding with you.
There is no extension of the bag waiver but you can include another's bag within your waiver.
Which benefit(s) were you most concerned about?
It's the UA Club card, so the companion does get a free bag, but I don't think E+ access is included.