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.
Men grow the most from 12 to 16 with the increase in height being as high as 12 inches in normal cases. Boys actually gain the most weight during this period, too. The growth during this time period is mostly in the extremities with the legs, feet, arms and hands growing the fastest.