飛行機にToothpasteを持ち込める？
Yes, with limits — you can bring toothpaste in carry-on bags provided you follow security limits. Cabin: tube ≤ 3.4 oz (100 ml).
- · Cabin: tube ≤ 3.4 oz (100 ml)
- · Toothbrushes (manual or electric): both bags, no limit
- · Toothpaste tablets: solid, unlimited
- · Checked: any size
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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
Carry-on
Restricted
Yes — tubes of 3.4 oz (100 ml) or less in your quart-size liquids bag.
Checked bag
Yes
Yes — any size tube.
Flying internationally? Security follows the country you depart from — the authority above applies at your departure airport. Customs at arrival is separate.
Toothpasteのパッキング注意点
機内持ち込み手荷物: Yes — tubes of 3.4 oz (100 ml) or less in your quart-size liquids bag.
受託手荷物（預け荷物）: Yes — any size tube.
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 Toothpaste in a carry-on?
Yes — tubes of 3.4 oz (100 ml) or less in your quart-size liquids bag.
Can you pack Toothpaste in checked luggage?
Yes — any size tube.
Last verified:
Verified against official sources. Rules change — for high-stakes items, confirm with your airline and the screening authority. Our verification method →