Checked Bags: Yes If the food is packed with ice or ice packs in a cooler or other container, the ice or ice packs must be completely frozen when brought through screening. If the ice or ice packs are partially melted and have any liquid at the bottom of the container, they will not be permitted.

To keep items cold in checked baggage in 2026, the most effective method is using insulated containers and frozen gel packs. TSA regulations permit ice packs and gel packs as long as they are frozen solid at the time of screening; however, for checked bags, the main concern is preventing leaks. Use a high-quality, soft-sided insulated cooler bag and seal all perishables in airtight "Ziploc" bags. For long-haul flights, you can use up to 5.5 lbs (2.5 kg) of dry ice in a checked bag, provided the container is vented to allow the carbon dioxide gas to escape and is clearly labeled "Dry Ice" with the net weight. It is a peer-to-peer recommendation to avoid using loose ice, as it will melt and leak, potentially damaging your other belongings or causing the airline to remove the bag. For 2026 travelers, vacuum-insulated "YETI" style containers are also excellent for keeping small items cold for up to 12–15 hours without the need for external cooling agents.