
It can be challenging to bring water through airport security due to liquid restrictions. However, frozen liquids, such as ice, are generally permitted through checkpoints as long as they are completely frozen solid. This loophole allows travellers to bring ice through security and fill their water bottles at water fountains or from taps after the checkpoint. It is important to note that partially melted frozen liquids must comply with standard liquid restrictions, and rules may vary depending on the airport and country.
| Characteristics | Values |
|---|---|
| Frozen water allowed through security | Yes, if frozen solid |
| Liquid items | Must be smaller than 3.4 ounces or 100ml |
| Medically necessary liquids | Allowed in greater quantities |
| Duty-free liquids | Allowed in transparent, secure, tamper-evident bags |
| Original receipt for duty-free liquids | Required |
| Purchase time frame for duty-free liquids | Within 48 hours |
| Food items | Should be placed separately on the conveyor belt |
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What You'll Learn

Frozen water must be solid when screened
Frozen water is allowed through airport security as long as it is frozen solid when presented for screening. If the ice is partially melted, slushy, or has any liquid at the bottom of the container, it must meet the 3-1-1 liquids requirement. This rule states that travellers can bring one quart-sized bag of liquids, aerosols, gels, creams, and pastes in their carry-on bag and through the checkpoint. Each item inside the bag must be smaller than 3.4 ounces or 100 millilitres.
The Transportation Security Administration (TSA) allows larger amounts of medically necessary liquids, gels, and aerosols in reasonable quantities for your flight. However, you must declare them to TSA officers at the checkpoint for inspection. Medically necessary liquids include formula, breast milk, toddler drinks, and baby/toddler food.
It is important to note that keeping water frozen until it is screened may be challenging. It must remain frozen during the ride to the airport, the walk to TSA, and the wait in line. If the ice starts melting, travellers may need an empty 100ml bottle to pour the melted water into before screening. Additionally, some travellers have reported that certain airports outside the US have stricter rules, confiscating water bottles even after they have passed through security.
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Medically necessary liquids are allowed in greater quantities
It is important to note that while frozen liquids are allowed through airport security, they must be completely frozen solid when presented for screening. If the frozen liquid items are partially melted, slushy, or have any liquid at the bottom of the container, they must follow the 3-1-1 liquids rule, which states that liquids, aerosols, gels, creams, and pastes must be in containers of 3.4 ounces (100 milliliters) or less and fit within a single quart-sized bag. This rule also applies to items that may not be typically considered liquids, such as peanut butter.
Travellers can take advantage of this loophole by freezing their desired liquids before passing through security. However, it is essential to ensure that the liquids remain completely frozen until screening. Additionally, it is worth noting that some TSA agents may interpret the rules differently, so it is advisable to be prepared and familiar with the regulations.
While bringing ice through security is allowed, it may be challenging to keep it frozen until reaching the checkpoint. Some travellers suggest bringing an empty 100ml bottle and pouring melted ice into it before screening. Alternatively, travellers can bring an empty reusable water bottle and fill it with water after passing through security, although the availability of water fountains may vary depending on the airport.
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Frozen liquids must meet 3-1-1 rules if partially melted
Frozen liquids are allowed through airport security as long as they are completely frozen solid. However, if the frozen liquid items are partially melted, slushy, or have any liquid at the bottom of the container, they must meet the 3-1-1 liquids rule. This rule, set by the Transportation Security Administration (TSA), states that travellers are allowed to bring one quart-sized bag of liquids, aerosols, gels, creams, and pastes in their carry-on bag and through the checkpoint. Each item inside the bag must be smaller than 3.4 ounces or 100 millilitres. Any liquids that are larger or do not fit inside the single quart-sized bag must be packed in checked baggage.
The 3-1-1 rule also applies to items that are not typically considered liquids, such as peanut butter and jam, which are spreadable and therefore fall under the category of liquids for TSA purposes. It is important to note that the interpretation of the rules may vary among TSA agents, and travellers may encounter agents who interpret the rules differently.
Medically necessary liquids, gels, and aerosols in reasonable quantities are exempt from the 3-1-1 rule. This includes formula, breast milk, toddler drinks, and baby/toddler food. These items can be brought through security in quantities greater than 3.4 ounces or 100 millilitres and do not need to fit within a quart-sized bag. However, they must be declared to TSA officers at the checkpoint for inspection.
Travellers can also carry larger quantities of duty-free liquids in transparent, secure, tamper-evident bags if they were purchased internationally and are travelling to the United States with a connecting flight. The original receipt for the liquids must be presented, and the purchase must have been made within 48 hours.
While freezing liquids can be a helpful workaround to bring larger amounts of liquids through security, it is important to ensure that the liquids remain completely frozen until screening. If the liquids start to melt, they will be subject to the 3-1-1 rule, and travellers may need to dispose of them if they do not meet the requirements.
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Frozen drinks are allowed through security
Frozen drinks are allowed through airport security as long as they are frozen solid when presented for screening. According to the Transportation Security Administration (TSA), frozen liquid items that are partially melted, slushy, or have any liquid at the bottom of the container must meet the 3-1-1 liquids rule. This rule states that travellers are allowed to bring one quart-sized bag of liquids, aerosols, gels, creams, and pastes in their carry-on bag and through the checkpoint. Each item inside the bag must be smaller than 3.4 ounces or 100 millilitres.
An alternative to bringing frozen drinks through airport security is to bring an empty reusable water bottle and fill it up at a water fountain or filling station after passing through security. Many airports have water fountains or filtered refilling stations, often located near restrooms. However, it may be challenging to find these stations in some airports, and they may not be available in all countries. For example, airports in Mexico and many other foreign countries may not have water fountains or potable tap water, requiring travellers to purchase beverages.
It is important to note that while frozen drinks are generally allowed through security, some TSA agents may interpret the rules differently, and it is always a good idea to be prepared and know the rules to avoid any issues. Additionally, it is worth considering that keeping frozen drinks solid during the journey to the airport, the walk to TSA, and while waiting in line can be challenging.
The TSA makes allowances for certain liquids that are considered medically necessary, such as milk, formula, and pumped breast milk, which are allowed through security without set limits. Toddler drinks and baby/toddler food are also included in this category and can be brought through security in quantities greater than 3.4 ounces or 100 millilitres.
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Some airports allow water fountains to refill bottles
While bringing frozen water through airport security is allowed as long as it is frozen solid, it can be challenging to keep it frozen before reaching the screening area. As a convenient alternative, some airports provide water fountains or refill stations, allowing travellers to fill their water bottles. Airports such as Philadelphia International Airport have installed bottle-filling stations near bathrooms and water fountains, offering a sustainable and cost-effective solution for travellers. These stations are designed to be hands-free and easy to use, with automatic sensors that stop the water flow when the bottle is full.
Some travellers recommend bringing an empty reusable water bottle and filling it up at the airport, as it can be challenging to find water fountains in some airports. Websites like www.wateratairports.com can help locate airports with water refill stations. Additionally, airports in the US typically have refill stations near the restrooms, making it convenient for travellers to fill their bottles before boarding.
It is worth noting that some airports may not have water fountains or may make it challenging to locate them, encouraging travellers to purchase water. Airports in Mexico and some South American countries, for example, may not provide water fountains or potable tap water, leaving travellers with limited options.
To navigate these challenges, travellers can invest in filtered water bottles, ensuring access to clean drinking water regardless of the airport's amenities. Additionally, bringing ice to keep food cold is allowed, and some travellers have shared their experiences of bringing ice to add to their drinks, enhancing the taste of airport water.
In conclusion, while bringing frozen water is permissible, the availability of water fountains and refill stations varies across airports. Travellers can benefit from researching their departure airport's amenities and bringing suitable alternatives to access drinking water conveniently and sustainably.
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Frequently asked questions
Yes, frozen liquids are allowed through airport security as long as they are completely frozen solid.
If your frozen water is partially melted, slushy, or has any liquid at the bottom of the container, it must meet the 3-1-1 liquids rule. This means that the liquid must be in a container that is smaller than 3.4 ounces or 100ml and all your liquids must fit in one quart-sized bag.
It can be challenging to keep your frozen water from melting before you go through security. One tip is to bring an empty 100ml bottle and pour any melted water into it right before screening.
Medically necessary liquids such as formula, breast milk, toddler drinks, and baby/toddler food are allowed in quantities greater than 3.4 ounces or 100ml and do not need to fit within a quart-sized bag.











































