If you’re wondering How Many OZ Can You Bring On A Plane? , the answer lies in the TSA’s standard 3-1-1 liquid rule. Every carry-on liquid must be in a 3.4-ounce (100 ml) container, all fitting inside one clear, quart-sized bag. This includes items such as toothpaste, creams, hair gels, and small bottles of perfume. Travelers should follow these limits to avoid confiscation or delays during airport screening. Understanding liquid restrictions allows for better packing and faster check-ins. This description provides clear guidance for anyone preparing for air travel and wanting to comply with airline and security regulations.