Just a little information that falls under the catagory of no one really cares but here goes.
Most of the airlines actually have a rule that you cannot bring any alcohol (even for transport purposes) onto their aircraft that is under 14% ABV. The reason, they don't want you bringing your own beer and cutting into their 5$ piss water sales. Note, this is airline policy and not federal. However, I have never seen this enforced (though once I saw a guy open his own beer from his carry on and the flight attendant asked him to put it away . . . never saw anyone chug a bottle that fast).
Having said that, I am taking a bunch of homebrew to the East Coast for thanksgiving . . . each will have a label taped on saying 15% ABV. You know, just in case.