As long as you keep your liquid or aerosol deodorant in a container that is smaller than 3.4 ounces (100ml) and store it in a quart-sized, zip-top bag, you shouldn't have a problem traveling with it. There are no restrictions for packing solid deodorants in your carry-on luggage.
What is the TSA limit for deodorant?
3.4 ouncesStick deodorant is fine in any size. Well, almost any size… Powders and crystals are good to go as well. Spray, Gel, Liquid, Cream, Pastes, and Roll-On deodorants need to be in containers no larger than 3.4 ounces and placed in a clear quart-sized baggie.