Join Date: Jul 2002
Location: Still going through ORD security when boarding has already started
Programs: AA EXP, UA Silver, HH Gold, Bonvoy Gold, IHG Plat, Hyatt Disco, Reno Air MEGA Platinum
Posts: 10,322
You should be able to upgrade each passenger individually. Then you can cancel the extra seat in coach and you'll have future flight credit. Not sure if this can be done online or if you need to call, but worth a try. You may have to call in and separate the reservation into two different PNRs - but I'm not 100% sure.