Originally Posted by
jc719
Spouse, child, and I are planning UA MP award trip. Each of us have miles in our own MP accounts to pay for our individual tickets. Can I make a single reservation and pay individually from our respective accounts ....?
No, a single reservation / PNR can only be funded from only one account.
One alternative is to book one-way tickets and if the accounts have enough miles to book 3 OW tickets then you could have a common reservation / PNR in each direction.
This does mean if you have to cancel, you would have twice the cancellation fee. Additionally you would lose access to the excursion segment option.