Originally Posted by
gutenmorgan
That makes sense, so basically they are just distinguishing between a ticket (required internationally, albeit at 10% of full fare for a lap infant) and a seat (which would cost full fare but not required below 2 years). I guess I just always assumed even a free lap infant flying domestically would still be "ticketed" for $0. Still doesn't help that the website seems unable to accommodate that mechanic.
Domestically they get a ticket, but it is $0 as you state. It's done in the background. You can do domestic lap infants at checkin (even on the kiosk, itll ask).