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.
Physical growth. Between the big growth stages of infancy and adolescence, boys and girls grow in height and weight at about the same slow but steady rate. There aren't notable differences between the sexes until late elementary school â that's when girls start to grow taller faster, although boys catch up and exceed them within a few years.