I know I am supposed to but I wasn't able to buy my DS her own airline ticket so she'll have to ride on my lap. Should I check her seat with the bags or do you think there is any way I can carry it on the plane and put it overhead? A Scenera. We normally have an extra seat by us. Someone normally asks the flight attendant if they can move to an extra seat if the plane isn't full. I don't mind that. I was thinking maybe since there will probably be an extra seat, they will let me install her car seat for free. Anyone have experience with this? Also, for the future. Do you know of any airlines that offer child fares for domestic flights? Thanks