Originally Posted by jdrtravel

I believe this is a legal gray area. Technically, drinking ages are set by state, not federal, regulations, though I think that all 50 states are now 21+. I do not believe that the FAA has a drinking age, so it is unclear if there is any legal minimum drinking age in the air, at least for interstate flights ( I would assume that, for example, LAX-SFO would be covered by CA law, but I think interstate commerce, including air travel, falls under federal law, right?). And I think that most countries outside of the US have 18+ (and often very loosely enforced) laws on the books.