✋ Hand luggage
Frozen solid gel packs: permitted in carry-on in any size per TSA guidance. Partially frozen, slushy, or unfrozen: treated as liquid/gel — must be under 100ml (3.4oz).
🧳 Hold luggage
Permitted in checked baggage in any state.
Based on TSA guidance for United States. Official rules ↗
Ice pack (gel pack) rules by country
How carry-on and checked-bag rules for ice pack (gel pack) compare across the 14 countries we cover.
Ice pack (gel pack)
Common questions
If the pack is partially melted, slushy, or fully liquid, screeners will treat it as a liquid or gel under the 100ml rule. A large unfrozen gel pack will be confiscated unless it fits within a 100ml container and is in your clear liquids bag. Only a completely solid frozen pack is exempt from the size restriction.
Yes. The UK, EU, and most other regions apply the same logic — a gel pack that is genuinely frozen solid is treated differently from a liquid and is generally permitted in carry-on in larger sizes. The practical test at any checkpoint is whether the pack is fully solid, and screeners in most countries will feel it to check.
Screeners typically press on the pack to check for any sloshing or soft spots. If it gives at all, they will classify it as a liquid. The decision is fairly subjective at the checkpoint, so the safest approach is to ensure the pack is completely rigid — not just mostly frozen — when you arrive at security.
Freeze the pack the night before travel rather than last minute, and pack it as the very last item in your bag before leaving for the airport to minimize exposure to room temperature. Use an insulated cool bag or wrap the pack in a layer of clothing to slow thawing. If you are using it to keep medication cold, tell the screener — medical necessity can also affect how the item is handled.
Related items
Browse all Miscellaneous →Based on official United States security guidelines. Rules vary by airline and route — always verify with your carrier before travel. · Rules last verified May 2026.