Are there rules regarding liquid carry—on items on domestic flights?
In general, liquid carry-on items are prohibited. Small amounts of liquid for personal use are allowed as follows: Only one piece of each type is allowed; capacity must not exceed 100ml; cosmetics must be placed in separate bags; and everything is subject to security checks. Passengers with infants may request directly from airlines at the time of ticket purchase that free liquid milk products be served on their flights. For details, please directly refer to airline policies and regulations.
