http://www.flyingwithkids.com/travel_tips.htm Usually children that age may ride on your lap for free. You do not need an extra ticket for the baby. If the flight is not full you my put the baby down in an empty seat. Check the above link for more information. It is Usually hard for babies that age to fly. Consider waiting one more year before you put a baby on the airplane. Airlines provide a bottle warming and diaper service.