what size of liquid allowed on airplane
The 3-1-1 rule is a handy way to remember what quantity of liquids, gels or aerosols TSA permits on a plane. The 3 indicates that each individual bottle of liquid should be 3.4 ounces (100 ml) or less. Even if the bottle is only half full, the size of the bottle, not the amount of liquid present, is what determines whether it is acceptable. The first 1 means that all of your bottles should fit inside one clear plastic zip-close bag. The second 1 is that only one bag per passenger is allowed. This bag should be removed from your carry-on luggage to make it easier to screen.