楼上错啦，2岁以上小孩和大人一样，经济舱的话每人可以托运2件，每件不超过挤布23kg。箱子大小也有限制遮逼。 新航官方网站资料：https://www.singaporeair.com/saa/en_UK/content/before/plan/baggage_allowance.jsp?v=-1568927017& Checked Baggage - Piece Concept (Flights to/From the USA/Canada) Adults and Children (age 2+) （大貌缘掏人+2岁以上孩童） Economy: Two pieces, the sum of the three dimensions (length + width + height) of both pieces added together does not exceed 273 cm (107 in) and the outside linear dimensions of each bag must not exceed 158 cm (62 in.) The weight of each piece is limited to 23 kg (50lb). 翻译过来就是允许托运2件。2件的长宽高加起来不能超过273cm，每件长宽高不能超过158cm。