Without the original box I would be tempted to carry-on the main unit packed inside a carry-on suitcase, just to avoid any possibility of it getting tossed around. I don't know how you would pack it well enough in a checked bag to keep it from smashing all around and possibly destroying the suitcase or itself. You could put the bowl and any attachments in the checked bag as the bowl is a bit wider than the stand and then pack the stand well enough to survive you gently carrying it on. The only issue would be the weight and having to lift it to and from the overhead compartment. I don't think TSA would have an issue with it going as carry-on, but give yourself a little extra time just in case if you decide to go this route. --TheMiddleSeat
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