I've flown internationally with my Axe II many times. When I'm concerned about carry-on restrictions, I take my Axe out of my 2-space rack and simply place the Axe inside a roll-aboard (I place the empty rack, filled with clothes, in my checked luggage. Make sure to get a roll-aboard that fits the Axe II, AND is airline regulation size. The one I use is a Briggs and Riley, cuz it's slightly wider yet still regulation; the Axe II fits perfectly. Before I had the Briggs, I had to remove the Axe's two front handles in order to fit into my carry-on. Wasn't such a big deal, but I prefer simple, so opted for the Briggs.