Wirelessly posted (BlackBerry8530/5.0.0.601 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/417)
"I have a 9 month old so his ticket is free for now."
I don't know what DL's policy is, but most carriers do not transport a lap infant for free on international flights. The typical charge for a lap infant is 10% of a full-fare ticket.