On Caribbean Airlines flights, you do not require a separate seat for babies up to 2 years. You will be charged 10 percent of the adult fare (plus taxes and surcharges) during international flights. Whereas on domestic Caribbean Airlines, the charge for infants is USD 2 (for infants not occupying a seat).Passengers traveling with babies up to 2 years are allowed to carry a foldable/collapsible stroller or an infant car seat or a baby carrying the basket, as per the space availability in the cabin. The checked baggage allowance for a lap infant is one checked baggage unit up to 10 kg.