Can You Bring Toothpaste on a Plane? Yes, you can bring toothpaste on a plane, but there are some restrictions. According to the Transportation Security Administration (TSA), you can bring toothpaste in both your carry-on and checked luggage, as long as it is in a container that is 3.4 ounces (100 milliliters) or smaller.

Carry-on luggage

• Toothpaste in a container that is 3.4 ounces (100 milliliters) or smaller is allowed in your carry-on luggage.
• Toothpaste in a larger container must be packed in a checked bag.