You've probably asked yourself, How Many OZ Can You Bring On A Plane? if you've ever packed for a trip. Airline regulations regarding liquid ounces can be perplexing whether it comes to shampoo, perfume, lotion, or even a drink. Thankfully, the Transportation Security Administration (TSA) offers precise instructions that facilitate packing and ease your passage through airport security. The TSA 3-1-1 rule, carry-on versus checked baggage regulations, exclusions, international variations, and clever packing advice are all covered in this article.

Understanding the TSA 3-1-1 Liquid Rule

The TSA 3-1-1 rule is the foundation for determining how many ounces of liquids you can bring on a plane. It applies to all passengers traveling with carry-on bags on flights departing from or within the United States.

1. 3 – Liquid containers must be 3.4 ounces (100 ml) or smaller

Any liquid, gel, or aerosol in your carry-on must be in a container no larger than 3.4 Oz. Even if the bottle is half full, the container size is what matters.

2. 1 – All containers must fit in one quart-sized bag

You can bring multiple 3.4-Oz containers, but they must fit comfortably in one transparent quart-sized zip bag.

3. 1 – Only one such bag per traveler

Each passenger is allowed just one liquids bag in their carry-on items.

Exceptions to the 3-1-1 Liquid Rule

Some items are exempt from the standard liquid restrictions. While security may still inspect them, you are allowed to carry more than 3.4 ounces in your carry-on baggage.

1. Medications

Liquid prescription and over-the-counter medicines are allowed in reasonable quantities.

You must notify the TSA agent and remove them from your bag for screening.

2. Baby Essentials

If you are traveling with an infant, you can bring: