坐飞机可以带 Soap 吗？
Yes — you can bring soap on a plane in your carry-on luggage. Bar soap: solid, no size limit.
- · Bar soap: solid, no size limit
- · Liquid soap/shower gel: ≤3.4 oz in the quart bag
- · Full-size bottles: checked bag
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💧 3-1-1 liquids rule checker
One quart-size (≈1 L) bag per passenger; every container must be 3.4 oz (100 ml) or less.
Fit is approximate — container shape decides real-world packing. Medically necessary liquids and infant food are exempt: declare them.
各航空安保机构官方规定
Rules by security authority
United States — TSA
Carry-on
Yes
Bar soap: any size. Liquid soap/body wash: 3.4 oz (100 ml) or less in your quart bag.
Checked bag
Yes
Yes — any size, bar or liquid.
Flying internationally? Security follows the country you depart from — the authority above applies at your departure airport. Customs at arrival is separate.
如何打包 Soap
随身携带行李: Bar soap: any size. Liquid soap/body wash: 3.4 oz (100 ml) or less in your quart bag.
托运行李: Yes — any size, bar or liquid.
安检通道现场的安检官员拥有决定物品能否通过的最终裁决权。
常见问题解答 (FAQ)
Frequently asked questions
Can you bring Soap in a carry-on?
Bar soap: any size. Liquid soap/body wash: 3.4 oz (100 ml) or less in your quart bag.
Can you pack Soap in checked luggage?
Yes — any size, bar or liquid.
Last verified:
Verified against official sources. Rules change — for high-stakes items, confirm with your airline and the screening authority. Our verification method →