3个月的孩子用钱都不用买票 Children up to 2 years old (24 months) are not required to have their own seat. You must, however, inform United Airlines that you will be traveling with an infant on your lap.
【在 c*****d 的大作中提到】 : 3个月的孩子用钱都不用买票 : Children up to 2 years old (24 months) are not required to have their own : seat. You must, however, inform United Airlines that you will be traveling : with an infant on your lap.