In unopened retail packaging, containing more than 24% but not more than 70% alcohol by volume (up to 140 proof)

Quantity limits: 5 L (1.3 gallons) per packaging and 5 L total per passenger.^*

Must be in unopened retail packagings.

Tip: Alcoholic beverages containing 24% or less alcohol by volume are not restricted as hazardous materials. This includes beers and most wines.

^*Liquids, gels, and aerosols in carry-on baggage are further limited to 100-ml (3.4 oz) containers at the TSA security checkpoint.

FAA regulations prohibit passengers from drinking alcohol on board the aircraft unless it is served by the air carrier.

Alcoholic Beverages Over 140 Proof

Greater than 70% alcohol by volume (more than 140 proof), including grain alcohol and 151 proof rum

Examples include grain alcohol and 151-proof rum.

See the regulation: 49 CFR 175.10(a)(4)