Check-in for air travel differs depending on your starting destination, your final destination, the airline you are flying and your travel day and time.
Boys continue growing until age 17 or 18. Boys and girls grow about two inches per year until they reach puberty. Then they each have a growth spurt that lasts a year or two. During the growth spurts, boys grow a little faster than girls. Girls reach puberty (on average) about a year before boys do. Girls also end puberty earlier than boys.
Humans experience two growth spurts. The first one occurs in early childhood at around the ages of 2 to 3, during which a child grows at a rate of 4 inches per year on average.The other growth spurt happens during puberty. Girls grow about 3 to 3 Â½ inches per year, and boys grow about 4 inches per year during puberty. After teens hit their peak growth spurt, their growth slows steadily until they reach their full adult height, which occurs about four or five years after their peak growth spurt.