A. Assuming you're not bringing Cuban cigars into the U.S., which could be confiscated at Customs, I would purchase an X-Treme humidor. They're air and water tight, and keep your cigars really fresh. I would also store them in your carry-on so they're traveling under "normal" conditions, as opposed to the freezing temperatures in the baggage compartment. The X-Treme model shown here holds 18 cigars, but they have models that hold less and more cigars.

(For more information on X-Treme travel cigar humidors, please click here instead of the "More info" link below. Thank you.)