Do you know there are some restrictions on the amount and kind of liquid you can take on a plane? If you want to enquire about how many ounces can you take on a plane you must refer to the policy of the airlines you are traveling with. Under TSA 311 rule the number of liquids, creams, pastes, gels, etc, is limited and all the liquids are required to be brought in a container. Items like prescribed medication, Baby formula, Breast milk, Baby care items, etc. are exempted from the list. https://www.travomonk.com/blog/how-many-ounces-can-you-take-on-a-plane/