Just looking for some help about traveling with a 18 month old , will the airlines let the infant have own seat with out the need of a travel seat ,as it would just be my wife traveling with our son and she wouldn't manage to carry a travel seat with her in between flights ,I know I am getting a head of my self here trying to plane the flight when not even got the visa 100% yet .just trying to think about best way for my wife to travel here with our son without having him sitting on her lap all the way here . Cheers for any ideas or help