I assume this is not a problem but thought I would double check. I booked my wife and kids a ticket DFW->GRU on miles and I need to buy them a one-way ticket to get from SEA->DFW to begin the ticket. I was hoping a miles ticket would show up at some point but it never did. Now, I just have to plunk down the $236, which hurts a little bit but not much else I can do.

Anyway, if they show up at the airport in Seattle and show them both tickets, will the AA rep be able to check the bags all the way through to GRU? I don't want them to have to transfer bags in DFW.

Thanks