飛行機にKnife with a blade over 15 cmを持ち込める？
不可 — 保安検査においてKnife with a blade over 15 cmの機内持ち込みは禁止されています。 Bottles over 100 ml prohibited at checkpoint.
- · Bottles over 100 ml prohibited at checkpoint
- · Allowed in carry-on ONLY if bought post-security or in sealed STEB bag from connecting international flight
- · Pack in padded wine sleeves for checked luggage
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航空保安当局別の公式規定
Rules by security authority
United States — TSA
機内持込:
不可
No — prohibited in carry-on baggage by TSA (all blades banned in US cabin).
受託手荷物:
可能
Yes — allowed in checked luggage.
Flying internationally? Security follows the country you depart from — the authority above applies at your departure airport. Customs at arrival is separate.
Knife with a blade over 15 cmのパッキング注意点
機内持ち込み手荷物: No — prohibited in carry-on baggage by TSA (all blades banned in US cabin).
受託手荷物（預け荷物）: Yes — allowed in checked luggage.
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 Knife With A Blade Over 15 Cm in a carry-on?
No — prohibited in carry-on baggage by TSA (all blades banned in US cabin).
Can you pack Knife With A Blade Over 15 Cm in checked luggage?
Yes — allowed in checked luggage.
Can I bring knife with a blade over 15 cm on a plane in Canada and the US?
CATSA: No — knife with a blade over 15 cm is prohibited in carry-on baggage under Transport Canada regulations. In checked bags: Yes — allowed in checked baggage with proper packaging.
Last verified:
Verified against official sources. Rules change — for high-stakes items, confirm with your airline and the screening authority. Our verification method →