TSA Liquid Rules: Maximum Liquid Carry-on Airplane

Whether you prefer to travel with only a carry-on or not, it’s important to be aware of the Transportation Security Administration’s (TSA) liquid restrictions for air travel within the United States.

However, figuring out which of your toiletries, foods, and other items qualify as “liquid” and how to pack them properly can be tricky.

This guide will help clarify the TSA’s rules and limitations regarding liquids, outline common exceptions, and provide tips to ensure a smooth experience during your next airport security check.

• TSA Liquid Limits [Carry-on]
• TSA Liquids Rule For Carry-Ons
• Toiletries TSA Rules For Flights
• How To Follow The TSA Fluids Guidelines For Toiletries In Your Carry-on Bag
• Can You Bring Shampoo In A Checked Baggage?

TSA 3-1-1 Liquid Rule & Liquid Limits

The Transportation Security Administration (TSA) is excited to introduce some amazing new CT scanners at major airports across the United States! These innovative machines let security officers see detailed 3D images of what’s inside your bags, making the screening process easier and safer for everyone.

You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams, and pastes in your carry-on bag and through the security checkpoint at the airport. This regulation is essential for maintaining safety during air travel.

Ensure that all items in this category are placed in travel-sized containers, each holding no more than 3.4 ounces (100 milliliters).

How many 3-oz bottles can you bring on a plane?

You can bring as many 3-ounce (100 ml) bottles as will fit in a single quart-sized (approximately 1 liter) clear, plastic, zip-top bag. Each passenger is allowed one such bag in their carry-on luggage.

Passengers may carry multiple 3-ounce (100 ml) bottles in one quart-sized (1 liter) clear, zip-top bag, limited to one bag per person in carry-on luggage.

To facilitate the screening process at the security checkpoint, it is advisable to pack these liquids, aerosols, gels, creams, and pastes in a single quart-sized bag.

Can I bring a 4-oz bottle on a plane if it’s not full?

No, a 4-oz bottle is generally not allowed in your carry-on luggage, even if it’s not full, due to TSA rules

• Container Size: The bottle must be 3.4 ounces (100 milliliters) or smaller to comply with the liquid restrictions.
• Bag Requirement: Any liquids you bring must be placed in a quart-sized, clear plastic bag.
• Screening: At the security checkpoint, you’ll need to remove this bag from your carry-on for screening.

Just follow the 3-1-1 rule, and you’ll be good to go!

How many Ziploc bags can I take on a plane?

You are typically permitted to carry a clear, resealable bag for liquids, gels, and aerosols, as long as it is quart-sized or smaller, in your carry-on luggage. The bag must close completely, and all items inside must be 3.4 ounces (100 milliliters) or less.

There are no limits on the number of other (non-liquid) bags you can include, provided they fit in your carry-on.

This organization allows security personnel to quickly and effectively inspect your belongings, thereby expediting the screening process for yourself and other travelers.

If any item is in a container larger than 3.4 ounces or 100 milliliters, it is mandatory to place it in your checked baggage instead of your carry-on. This helps to avoid complications when passing through security, as larger quantities of these substances are typically not permitted in the cabin for safety reasons.

Please keep in mind that if any liquids, aerosols, gels, creams, or pastes set off an alarm during screening, we’ll need to take a closer look. This extra step helps us make sure everything meets our security standards and keeps all passengers safe while traveling.

TSA Rules About Inbound International Flights You are allowed to bring duty-free liquids in secure, tamper-evident bags exceeding 3.4 oz or 100 ml in your carry-on luggage if: The duty-free liquids were bought internationally, and you are heading to the United States with a layover. The liquids are contained in a transparent, secure, tamper-evident bag provided by the retailer and show no signs of tampering when presented to TSA for screening. You possess the original receipt for the liquids, and the purchase occurred within the last 48 hours. All items within the secure, tamper-evident bags must undergo screening and receive approval. Any item that triggers an alarm or cannot be screened will be disallowed in your carry-on luggage. Source: TSA.gov

Is the TSA Ending the 3-ounce Liquid Rule?

The TSA is reportedly considering changes to its long-standing 3-ounce liquid rule, which has been a staple of airport security since its implementation in 2006. The rule was introduced as a safety measure following concerns about liquid explosives, requiring passengers to limit liquids, gels, and aerosols to containers of 3.4 ounces (100 milliliters) or less, all stored within a single quart-sized bag.

Recent advancements in security technology, particularly the adoption of CT scanners at some airports, have sparked discussions about relaxing these restrictions. CT scanners provide detailed 3D images of the contents of carry-on bags, allowing security personnel to better identify potential threats without requiring passengers to adhere strictly to the liquid limit. Some airports worldwide have already eased liquid restrictions due to similar upgrades.

While no official announcement has been made regarding the complete elimination of the 3-ounce rule, travelers are encouraged to stay informed about TSA updates and changes to airport security protocols. If implemented, this shift could significantly streamline the security process and improve the overall travel experience.

TSA Liquids Rules About Liquids, Aerosols, and Gels Rule

You are permitted to carry a quart-sized bag containing liquids, aerosols, gels, creams, and pastes in your carry-on luggage and through the security checkpoint. Each item must be in a travel-sized container of 3.4 ounces (100 milliliters) or smaller.

To streamline the screening process, it is advisable to place these items in a small bag and keep them separate from your carry-on baggage. Items in containers larger than 3.4 ounces or 100 milliliters should be packed in checked luggage.

Any liquid, aerosol, gel, cream, or paste that triggers an alarm during screening will require further inspection.

Prohibited Liquids in Checked Baggage

Items that are not permitted in checked luggage include flammable liquids such as lighter fluid and paint, household chemicals like bleach and cleaning products, as well as pressurized items, including spray paint and fire extinguishers.

Alcoholic drinks with an alcohol by volume (ABV) exceeding 70% are prohibited.

Detailed Breakdown:

Flammable Liquids: These materials present a considerable fire hazard and are thus banned. Examples include:

• Lighter fluid
• Camping fuel
• Gasoline
• Paint and paint thinners

Household Chemicals: Compounds like bleach, cleaning solvents, and other corrosive or reactive substances can react perilously due to pressure changes during flights and are not allowed.

Pressurized Containers: Aerosol products, spray paint, fire extinguishers, and other pressurized items may explode or leak under changing pressures during flights.

High-Proof Alcohol: Beverages with an ABV of 70% or more are deemed flammable and are forbidden in both checked and carry-on bags.

Self-Defense Sprays: Items such as mace, pepper spray, and bear spray are banned due to their ability to inflict harm.

Other: Some airlines may enforce additional restrictions, so it is advisable to verify with the specific airline before you pack.

How Many Ounces Can You Take on a Plane?

Liquid Limit

• Maximum Volume per Container: Each container of liquid must not exceed 3.4 ounces (100 milliliters).
• Total Volume in Carry-On: All liquid containers must fit within a 1-quart (1-liter) clear, resealable plastic bag.

Additional Guidelines

Duty-free liquids purchased after the security checkpoint are also allowed, provided they are in a secure, tamper-evident bag.

Exceptions

Medications, baby formula, and breast milk are allowed in larger quantities but must be declared at security.

Allowed Liquids

You can carry various liquids, including:

• Toiletries: Shampoo, conditioner, lotion, toothpaste, and deodorant.
• Beverages: Water, juice, or other drinks (must comply with the size limit).
• Makeup: Liquid foundation, mascara, and other liquid cosmetics.

Exceptions

• Duty-Free Purchases: Liquids purchased after the security checkpoint are allowed in larger quantities, provided they are sealed in a tamper-evident bag.
• Medications: Prescription and over-the-counter medications are allowed in larger quantities but must be declared at security.
• Baby Items: Baby formula, breast milk, and baby food can exceed the 3.4-ounce limit if necessary.

TSA Toiletries Allowed in your Carry-on

The TSA restricts carry-on liquids under the 3-1-1 rule, permitting travelers to bring liquids, aerosols, gels, creams, and pastes in containers of 3.4 ounces (100 milliliters) or less.

Each container must adhere to the 3.4-ounce (100 milliliters) limit to comply with TSA regulations. Items such as liquids, gels, aerosols, creams, and pastes must fit comfortably within the quart-sized bag.

Exceptions may apply for medications, baby formula, or breast milk, which should be declared during the security screening process.

How Does TSA Define A Liquid? The Transportation Security Administration (TSA) defines a liquid as any substance that is in a fluid state at room temperature. This includes: Liquids: Water, juice, soda, and other beverages. Gels: Hair gel, toothpaste, and similar products. Aerosols: Spray deodorants, shaving cream, and other spray products. Liquids bought at duty-free shops are permitted in larger quantities, provided they are sealed in tamper-evident bags along with the receipt. Additionally, prescription and over-the-counter medications may be carried in larger quantities, but kindly ensure they are declared to TSA officers at the checkpoint.

Additionally, if your liquid containers exceed 3.4 ounces, even if only partially filled, they cannot pass through security. However, empty containers, like reusable water bottles, can be taken through the TSA checkpoint, as they do not hold any liquids at that time.

• Toothpaste
• Deodorant
• Shampoos and conditioners
• Lotions and sunscreen
• Gel hair products
• Aloe vera
• Perfumes
• Lip gloss
• Hairspray

Baby Powder & Other Items

Powders and powder-like substances, including items such as baby powder and cosmetic products like foundation and setting powder, are allowed in your carry-on luggage without any restrictions.

However, it is important to note that if you are carrying a quantity that exceeds 12 ounces (350 milliliters) of any powdery substance, you will be required to follow additional protocols during the security screening process. Specifically, you must remove these items from your bag and place them in a separate bin for X-ray screening.

This is a crucial step to ensure that security personnel can properly inspect these items as part of their screening procedures. In some cases, products exceeding this threshold may be subject to further examination, which could include additional testing or questioning.

Therefore, if you anticipate that your carry-on may contain a larger amount of powder, it is wise to plan and allow for extra time at the security checkpoint. This can help you avoid any rush and ensure that you go through the screening process smoothly, without the stress of potentially delaying your travel plans.

Soap Bar On Plane

Traveling light is essential, especially when flying. A soap bar on a flight is a perfect companion for your journey. Unlike liquid soap, it doesn’t count toward your liquid limit, making it TSA-friendly. Plus, it’s compact, spill-proof, and eco-friendly, as it often comes with minimal or no packaging.

How To Follow The TSA Fluids Guidelines For Toiletries In Your Carry-on Bag

The TSA’s regulations on liquids are based on security concerns, particularly due to the risk of liquid explosives. The stricter rules regarding liquids in carry-on luggage were implemented following the 2006 transatlantic aircraft plot.

Organize Thoughtfully

• Group by use: Place daily essentials (toothpaste, moisturizer, shampoo) at the top of your bag—easier to remove at security.
• Sturdy toiletry kit: Use a clear, leak-proof pouch or hard-shell travel kit. Look for a wipeable lining to contain drips.
• Mesh or exterior pockets: Keep combs, toothbrushes, razors or solid bars (soap, shampoo bars) in an outside pocket for quick visual inspection.

Solid Products Are Your Friends

• Solid shampoo/conditioner bars, soap bars, and balm sticks: These aren’t considered “liquids” and can go outside the quart-bag, reducing your liquid count.
• Solid deodorant, toothpaste tablets: Likewise, pack these freely without restriction.

Pack Smart to Avoid Spills

• Double-check lids: Screw caps on tightly; consider sealing with tape or placing bottles upright.
• Mini travel bottles: Transfer larger-volume lotions or liquids into certified TSA-approved mini bottles.
• Absorbent barrier: Slip a paper towel or small reusable cloth between bottles to catch any leaks.

Know What You Can’t Bring

Prohibited liquids: Flammable liquids (lighter fluid, certain solvents) and most aerosol sprays beyond personal care use.

Medically necessary liquids (prescription medications, baby formula, breast milk) are allowed in reasonable quantities but must be declared for inspection.

TSA PreCheck is a program designed for trusted travelers that enables them to undergo a quicker security screening process for domestic and select international flights.

At airports where this service is available, TSA PreCheck provides a dedicated security line designed to be quicker and more efficient than standard lines. Passengers using these lines are kindly allowed to keep their shoes, belts, and light jackets on, and they are not required to remove laptops or liquids from their carry-on bags.

Furthermore, alongside their website, you now have the option to directly message the TSA with any inquiries regarding specific items or security procedures. This thoughtful service provides a quick and convenient way to seek clarification, helping you make informed packing decisions and ensuring a smoother travel experience.

Engaging with the TSA through text can provide peace of mind, knowing that you’re making informed choices as you prepare for your journey. Happy Travels!

FAQs Regarding TSA Liquid Limits