Traveling by air is often very exciting but can cause passengers to be confused about what to carry onboard and as checked baggage. This confusion becomes more complex when it comes to carrying liquids, which everyone finds difficult to bring on their travels. But that does not mean people should stop bringing them during their air journey, right? To erase all your doubts regarding the topic, we have provided all the information below so that when you go on your next journey, you have a clear answer to the question, ‘How much liquid can I bring on a plane?’ 

Along with the weight you can carry, learn about liquid items and how to pack them for easy travel. So, without any further delay, let’s dive in. 

TSA 3-1-1 Rule- A Must-know Factor

The TSA (Transportation Security Administration) sets all the rules about how much liquid or what exactly you can carry. As you know, you have to clear the TSA Security checkpoints before your departure. If the officials find anything suspicious, they might also stop you from taking your flight. That is why one has to keep in mind the regulations they set. The amount of liquid you can carry depends on whether you want to take it as carry-on luggage or checked baggage. Let us see the rules related to both of them. 

1- Carry on Baggage

The TSA 3-1-1 rule simply means that passengers are allowed to bring liquids, gels, and aerosols in containers that are 3.4 ounces (100ml) or less. All the liquid you carry must fit in one quart-size bag, and each person can only carry one bag. Any liquid that does not comply with this rule will not be permitted by security. So, make sure you carry everything as per the rules.

2- Checked Baggage 

For checked baggage, the rules are much relaxed. Anything that is larger than 3.4 ounces (100 ml) can fit inside your luggage, regardless of the amount. However, one must pay attention to how you pack your checked baggage, as during the journey, it will be subjected to large pressure variations, which could lead to the container being unsealed and the contents spilling out. Therefore, one must pack them carefully. 

Items Exempted from the 3-1-1 Rule 

The details above must have answered your question about how much total liquid I can bring on a plane. Now, let us discuss certain items that do not fit under the 3-1-1 rule. These items include medications and Infant and child nourishment.


TSA permits “reasonable quantities” of some medically required liquids, gels, and aerosols for your journey in higher proportions. It is unclear how much is permitted.

One thing you must know prior to your air travel is that at the checkpoint, you must submit the prescription to TSA agents for inspection along with any related items, including syringes or frozen packs.

Infant and Child Nourishment 

Breast milk and formula are excluded from the carry-on liquid limit since they are deemed medically required liquids. Juice and water for infants are also permitted in amounts more than 3.4 ounces, or 100 milliliters.

These baby and toddler food items can be carried on luggage without fitting into a quart-sized bag. Additionally, you are allowed to pack canned, jarred, or processed baby food in your carry-on luggage along with teethers filled with gel or liquid.

Note—You can bring duty-free liquids in secure, tempered bags on international connecting flights to the USA as carry-on luggage. The liquid’s weight can exceed 3.4 ounces or 100 ml. Ensure that you keep the original receipt along with you and make the purchase within 48 hours of your departure. 

Suggestions to Pack Liquid in Carry-on Luggage 

Below are certain tips that you can follow to pack your carry-on bags. Read carefully so that you gain complete knowledge about it and can follow the advice for your next travel. 

  • Firstly, make sure that the weight of your liquid does not exceed 3.4 ounces.
  • Pack your liquid into a tight, leakproof container that fits your carry-on bag.
  • You can bring your liquid in the form of a solid and put it inside your carry-on bag without any need to place it in a quart-size bag.
  • Stow your liquid bag in a convenient location, such as the top of your carry-on bag or an outside compartment.

Restricted Liquids for Checked Baggage 

As you know, the TSA has very lenient rules regarding liquids in checked baggage, but it still prohibits some items that might pose a public danger in both checked and carry-on luggage. So, if you do not want to get into legal trouble, be sure not to carry any item on the list below.

  • Alcoholic Beverages over 70% ABV
  • Fertilizers
  • Insecticides 
  • Poisonous liquid
  • Aerosols that are not necessarily toiletries
  • Ignitable Liquid 

Know the Liquid Rule for Your Destination

Traveling from one place to another itself is a very hectic task, and on top of that if you have to carry liquids in your luggage, it can be troubling. By connecting with your specific airlines, you can know the exact rules and regulations that you have to follow to take liquids during your journey. No matter if you are traveling to Canada, France, Singapore, Ireland, South Korea, Japan, or any corner of the world, you have to abide by the TSA regulations so that you can have a flawless trip without getting into any trouble. 

A Final Thought!

We hope that with the details above, you now have a clear understanding of your query about how much liquid formula I can bring on a plane. All the information above will be helpful for your air journey. Ensure that you follow the TSA guidelines to not get into any trouble later on. Pack your bags with utmost care. 

Frequently Asked Questions

1- How much liquid can I bring on a plane traveling to Ireland?

You can bring a total of 100ml of liquid, packed inside a 1-litre plastic bag, for your travel to Ireland. 

2- How much liquid is allowed in carry-on luggage?

Any liquids, aerosols, or gels you plan to bring in your carry-on luggage must be in containers no bigger than 100 milliliters. 

3- Is it allowed to bring more than ten liquids on a plane?

The most important thing to remember is that you can only bring 100 milliliters or less of any restricted beverage into the airplane cabin, and that liquid should be kept in separate 100-milliliter containers.

4- Is toothpaste regarded as a fluid?

The 3-1-1 liquids rule often applies to common travel goods like toothpaste, shampoo, conditioner, mouthwash, and moisturizer.

5- How much liquid can I bring on a plane to Canada?

Passengers can carry a total of 3.4 ounces of liquid weight in their carry-on luggage. To know the limit for checked baggage, you can contact your airline directly. 

6- Are wet wipes considered a liquid when flying?

Many individuals are unaware that Wet Wipes aren’t subject to TSA regulations, so you can bring an ample supply on board without fear of it being taken.

7- Is a quart bag required for stick deodorant?

Stick, solid, powdered, and crystal deodorants don’t have any size restrictions. But when it comes to spray gel, liquid, cream, paste, or roll-on deodorant, don’t go beyond 3.4 ounces.

8- How much liquid can I bring on a plane in Singapore?

Liquids will only be allowed when kept in a 100ml container wrapped in a clear plastic bag, the total volume of which must not exceed 1000 ml.

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