飛行機にBox Cutter / Utility Knifeを持ち込める？
不可 — 保安検査においてBox Cutterの機内持ち込みは禁止されています。 Cabin: never, blade in or out.
- · Cabin: never, blade in or out
- · Checked: allowed, sheathed or securely wrapped
- · Loose replacement blades: checked only
- · Knives legal everywhere on the ground still cannot fly in the cabin
On this page · 5 sections
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 — box cutters and utility knives are prohibited in the cabin, with or without the blade installed.
受託手荷物:
可能
Yes — sheathe or wrap the blade securely so baggage handlers and inspectors cannot be cut.
Flying internationally? Security follows the country you depart from — the authority above applies at your departure airport. Customs at arrival is separate.
Box Cutter / Utility Knifeのパッキング注意点
機内持ち込み手荷物: No — box cutters and utility knives are prohibited in the cabin, with or without the blade installed.
受託手荷物（預け荷物）: Yes — sheathe or wrap the blade securely so baggage handlers and inspectors cannot be cut.
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 a Box Cutter in a carry-on?
No — box cutters and utility knives are prohibited in the cabin, with or without the blade installed.
Can you pack a Box Cutter in checked luggage?
Yes — sheathe or wrap the blade securely so baggage handlers and inspectors cannot be cut.
Last verified:
Verified against official sources. Rules change — for high-stakes items, confirm with your airline and the screening authority. Our verification method →