There is no age restriction on flying small children. However you may want to take several things in to consideration. First, can your child see over the basket. Also, if your child has been around a balloon before, how did they respond to the burner. For those children that have never been around a hot air balloon before, the burner is quite loud and spits out an extremely large flame. Chances are a young child (5 or 6), no matter how much he tells you really really wants to go, will be scared by the burner and change his mind at the last minute. Young children tend to get bored because ballooning is not an exciting ride like a roller coaster.