Check the alcohol-by-volume (ABV) label first. These FAA limits concern carriage on aircraft, not your destination’s import allowance.
Checked-bag limits
| Alcohol strength | FAA rule |
|---|---|
| 24% ABV or less | No dangerous-goods quantity limit; baggage and customs limits still apply. |
| Above 24%, up to and including 70% | Unopened retail packaging; no container over 5 L and no more than 5 L total per person. |
| Above 70% | Prohibited in both cabin and checked baggage. |
For the 5 L category, six 750 ml bottles total 4.5 L; seven total 5.25 L and exceed the allowance.
Carry-on and duty-free purchases
Ordinary liquids presented at a TSA checkpoint must use containers no larger than 100 ml (3.4 fl oz), all fitting in one quart-sized bag per passenger. The ABV restriction still applies.
A duty-free purchase is not automatic permission to carry a large bottle through a later checkpoint. Before buying, check your transfer airport’s rules and any sealed-bag, receipt and screening requirements.
On flights subject to FAA rules, do not serve yourself alcohol: it must be served by the airline.
Customs and packing
Look up the destination customs authority’s current alcohol allowance, minimum age and declaration requirements. Also check transit rules and the operating airline. Duty-free tax treatment and permission to carry a bottle are different questions.
Keep bottles sealed, cushion them individually and bag them against leaks. Check the packed suitcase’s weight before departure.