Yes. The Dyson Corrale straightener has a Flight-ready feature that disconnects the battery, designed to adhere to International Civil Aviation Organisation (ICAO) regulations.⁴ Please always check with your airline before you fly and place your Dyson Corrale straightener in your carry-on luggage. It also has Universal Voltage, so you can charge it while you're abroad.
⁴Stricter regulations in Japan mean you will not be able to fly in or out of any Japanese airports with your straightener.