Originally Posted by
jnoono
It is the outbound I am concerned about, if I pay for the seats now, then upgrade the second child for the return, we will all still keep our paid for seats on the outbound? (It won't get mucked up by the process of potentially getting a 3rd PNR)
I would expect existing seats to stick and survive the PNR splitting process. You have to talk to an agent to split a PNR anyway so you may as well check that they also retain the unaffected passengers in their paid for seating.