飛行機にDry Iceを持ち込める？
条件付きで可能 — Dry Iceは航空保安基準の制限内で機内持ち込みが可能です。 ≤ 5.5 lb (2.5 kg) per person.
- · ≤ 5.5 lb (2.5 kg) per person
- · Package must be vented — never airtight
- · Carrier approval required — arrange before you fly
- · Checked packages: marked “DRY ICE” / “Carbon Dioxide Solid” with net weight
On this page · 6 sections
航空保安当局別の公式規定
Rules by security authority
United States — TSA
機内持込:
条件付き
Sometimes — up to 5.5 lb of dry ice, in a vented package, and only with airline approval. Arrange it with your carrier first.
受託手荷物:
条件付き
Sometimes — the same 5.5 lb vented-package rule with airline approval applies to checked bags; the package must be marked appropriately.
Flying internationally? Security follows the country you depart from — the authority above applies at your departure airport. Customs at arrival is separate.
航空会社別の追加ルール
Airline approval is mandatory — call ahead. Carriers apply their own procedures within the 5.5 lb / 2.5 kg cap, and some routes decline dry ice entirely.
Dry Iceのパッキング注意点
機内持ち込み手荷物: Sometimes — up to 5.5 lb of dry ice, in a vented package, and only with airline approval. Arrange it with your carrier first.
受託手荷物（預け荷物）: Sometimes — the same 5.5 lb vented-package rule with airline approval applies to checked bags; the package must be marked appropriately.
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 Dry Ice in a carry-on?
Sometimes — up to 5.5 lb of dry ice, in a vented package, and only with airline approval. Arrange it with your carrier first.
Can you pack Dry Ice in checked luggage?
Sometimes — the same 5.5 lb vented-package rule with airline approval applies to checked bags; the package must be marked appropriately.
Do airlines have their own rules for dry ice?
Airline approval is mandatory — call ahead. Carriers apply their own procedures within the 5.5 lb / 2.5 kg cap, and some routes decline dry ice entirely.
Last verified:
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