Join Date: Nov 2000
Location: Nashville -Past DL Plat, FO, WN-CP, various hotel programs
Programs: DL-MM, AA, SW w/companion,HiltonDiamond, Hyatt PLat, IHF Plat, Miles and Points Seeker
Posts: 11,405
Without a doubt, the companion can BOARD without the other person. That must happen often depending on when each person checks in and/or buys early boarding.
The real question is what happens when they realize there is a missing person...
Waiting for an answer.