When carrying alcohol on international flights, always take into account the destination’s laws regarding alcohol. Many countries and states have established limits on the amount of alcohol that a person may bring with them. Take into account that duty and IRS taxes are based on the amount of alcohol transported.
Less Than 24 Percent Alcohol Content
Bottles with less than 24 percent alcohol content are not considered hazardous and are therefore not subject to the hazardous materials regulations established by the FAA.
24 to 70 Percent Alcohol Content
All bottles or flasks must be sealed with the original labeling. A passenger is allowed to take no more than five liters of alcohol in their checked luggage.
Higher Than 70 Percent Alcohol Content
Alcohol that is 140 proof is not allowed in checked luggage. This regulation includes 150 proof rum and 95 percent grain alcohol.
Always check individual airline regulations for their specific rules regarding alcohol. Many airlines have stricter rules than the FAA regulations.
FAA no longer differentiates between liquids in regards to carry-on luggage. All liquids must be three ounces or less in their original containers. The bottle needs to be enclosed in a one quart plastic ziplock bag. Alcohol that is 140 proof is completely prohibited even if the bottle is three ounces or less. Alcohol purchased after the security checkpoint may be carried on the airplane even if it is greater than three ounces in volume.