飛行機にSoapを持ち込める？
可能 — Soapは機内持ち込み手荷物として飛行機に持ち込めます。 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.
航空保安当局別の公式規定
Rules by security authority
United States — TSA
機内持込:
可能
Bar soap: any size. Liquid soap/body wash: 3.4 oz (100 ml) or less in your quart bag.
受託手荷物:
可能
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.
Soapのパッキング注意点
機内持ち込み手荷物: Bar soap: any size. Liquid soap/body wash: 3.4 oz (100 ml) or less in your quart bag.
受託手荷物（預け荷物）: Yes — any size, bar or liquid.
保安検査場での最終的な持ち込み可否判断は、現場の保安検査員に委ねられます。
よくある質問 (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 →