You can bring liquids on a plane in carry-on luggage under the TSA's 3-1-1 rule:

• Each liquid container must be 3.4 ounces (100 milliliters) or less.
• All containers must fit inside one clear, resealable quart-sized (about 32 ounces) bag.
• Each passenger is allowed only one such bag.

This means you can bring multiple small containers, but their total volume must fit in the quart-sized bag, which typically holds around 7-8 containers of 3.4 ounces each, roughly totaling about 25 ounces of liquids

. Exceptions to these rules include:

• Prescription and over-the-counter liquid medications (must be declared at security).
• Baby formula, breast milk, and juice for infants (larger quantities allowed if declared).
• Frozen liquids that are completely frozen when screened.
• Duty-free liquids purchased after security in sealed tamper-evident bags with receipts.

For liquids exceeding 3.4 ounces not covered by exceptions, you must pack them in checked baggage, where there are generally no TSA liquid restrictions, though airlines may have specific rules for items like alcohol

. In summary, for carry-ons, the limit is containers of 3.4 ounces or less, all fitting in one quart-sized bag, with certain medically necessary or infant-related exceptions allowing larger quantities if declared. Larger amounts should go in checked luggage