1 Frankfurt Intl Airport (Frankfurt, Germany) 2  Right now, 120 airlines operate out of Frankfurt Intl Airport. 3  Frankfurt Intl Airport offers nonstop flights to 296 cities.  Every week, at least 4,564 domestic flights and 16,296 international flights depart from Frankfurt Intl Airport.
Keep your child who has outgrown his forward-facing car seat in a belt-positioning booster seat until they are big enough to fit in regular seat belts. Keep in mind that, according to the AAP, this is usually not until a child has 'reached 4 feet 9 inches in height and are between 8 and 12 years of age.'.
1 Generally, kids need to use a booster until they are at least 4 feet 9 inches tall and weigh between 80 and 100 pounds. For most kids, they will be between ages 8 to 12 years old.  Talk with everyone who drives your kids so they understand that booster seat use is a must when your child is in their vehicles.