Prohibited and restricted items

Gel ice

Gel ice is the preferred cooling medium, and there is no limit on the volume, up to our standard size and weight allowances in checked luggage. In carry-on luggage, gel containers are limited to 3 oz. per container inside a quart size zip-top plastic bag, unless being used to cool disability or medically related items.

Dry ice

Dry ice may be placed in carry-on and checked baggage provided the following limitations are met: Each customer is limited to 5.5 pounds total of dry ice. The packaging must allow for the release of carbon dioxide gas. The package must be marked with the net weight of the dry ice or the statement that the net weight of dry ice is 5.5 pounds or less. The name of the contents being cooled, along with the words "Dry Ice" or "Carbon Dioxide, Solid" are written on the outside of the package.

Dry ice in checked baggage will only be accepted on Alaska Airlines flights 001-1999, flights 2000-2999, and flights 3300-3499.

Wet ice

Wet ice is prohibited in checked baggage. Wet ice may be used in carry-on baggage to maintain human organs, tissue samples, etc. The ice must be sealed in a heavy grade plastic bag which is then sealed in another plastic bag to prevent leakage. It must be transported in a leakproof container (a cooler is recommended).