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.
Most girls will have their growth spurt period between ages 10 and 14, during the early stages of puberty. During this growth spurt that lasts for a year or two, growth is rapid. They can grow as much as 3Â½ inches in height per year during this duration. Hence, it is common for 12 and 13 year old girls to be taller and heavier than boys. Most boys start puberty and begin their growth spurt between ages 13 and 15. Their growth spurt also lasts for a year or two and during this period they may gain as much as 4Â½ inches in height per year. By age 15, it is common for boys to become taller and heavier than girls. After the growth spurt, growth continues but slows down to a steadier rate.