How do you take baby milk on a plane?

Formula, breast milk, toddler drinks, and baby/toddler food (to include puree pouches) in quantities greater than 3.4 ounces or 100 milliliters are allowed in carry-on baggage and do not need to fit within a quart-sized bag.



Taking baby milk on a plane is a standard exception to the "3-1-1" liquid rule used by the TSA and international security agencies like the UK's CAA. You are allowed to carry breast milk, formula, and sterilized water in quantities exceeding 100ml (3.4 oz), provided you are traveling with an infant or toddler. You should inform the security officer at the start of the screening process. The liquids will be screened separately, often using an X-ray machine or a dedicated liquid scanner; occasionally, officers may ask to open a bottle to test the vapor, though they should not touch the milk itself. To make the process smoother, it is highly recommended to store milk in clear, easy-to-open bottles. If you use cooling gel packs or ice packs to keep the milk fresh, these are also permitted through security as long as they are frozen solid at the time of screening.

People Also Ask

TSA officers may need to test the liquids for explosives or concealed prohibited items. Although not required, to expedite the screening process, it is recommended that formula and breast milk be transported in clear, translucent bottles and not plastic bags or pouches.

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Checked Bags: Yes Water for babies is allowed in reasonable quantities in carry-on bags. Remove this item from your carry-on bag to be screened separately from the rest of your belongings. Please see traveling with children for more information. For more prohibited items, please go to the 'What Can I Bring?'

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Formula, breast milk, toddler drinks, and baby/toddler food (to include puree pouches) are considered medically necessary liquids. This also applies to breast milk and formula cooling accessories, such as ice packs, freezer packs, and gel packs (regardless of presence of breast milk).

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Yes, you can bring powdered formula on the plane. I never have brought a whole can, but usually slightly more than I think I'll need. I don't bring bottled water because you have to get it screened further at TSA (see here: https://www.tsa.gov/travel/special-procedures/traveling-children). But that is allowed.

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TSA officers may need to test the liquids for explosives or concealed prohibited items. Although not required, to expedite the screening process, it is recommended that formula and breast milk be transported in clear, translucent bottles and not plastic bags or pouches.

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Formula, breast milk, toddler drinks, and baby/toddler food (to include puree pouches) in quantities greater than 3.4 ounces or 100 milliliters are allowed in carry-on baggage and do not need to fit within a quart-sized bag.

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Parents/guardians should remove infants and children from strollers and car seats and carry them in their arms through the walk-through metal detector. Infants may be carried in a sling/carrier through the walk-through metal detector. Children will not be separated from their parent/guardian.

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Diaper bags, soft-sided cooler bags with breast milk, child safety seats, strollers and medical or mobility devices don't count toward your personal item or carry-on.

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Firearms, ammunition, and fireworks are prohibited, as are all knives and safety razors (including pocket knives and Swiss Army knives). Straight razors and replacement blades for straight razors are also not allowed. Most tools also cannot be packed in carry-on luggage, as they have the potential to cause harm.

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Planning your trip
  • Infants on lap. Children under two can sit on a parent's lap during flights to any destination.
  • Infant seats. Alternatively, infants can have their own seat if you bring an approved car seat.
  • All other kids. Children older than two will need a ticket and their own seat on the plane.


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You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes through the checkpoint. These are limited to 3.4 ounces (100 milliliters) or less per item. This is also known as the 3-1-1 liquids rule.

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Put some freshly boiled water in a high-quality vacuum flask, which will keep it warm for about four hours. You can then easily make a feed by adding the water and formula powder to a sterilised bottle. Do check the temperature before feeding it to your baby, by putting a few drops on the inside of your wrist.

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While this can be confusing, most popular airlines allow you to bring a carry-on and personal item, such as a backpack or purse. In general, your personal item should be smaller than your carry-on and under the specific airline's carry-on dimensions, allowing it to fit under the seat in front of you.

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Toothpaste is considered a liquid by the TSA (Transport Security Agency), even though it's technically a paste. In fact, all pastes, gels, waxes, and lotions are also classified as liquids. And even today, these substances are still restricted by the 3-1-1 rule in hand luggage due to safety threats.

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The TSA's liquid limit for carry-ons—known as the 3-1-1 rule—allows travelers to pack liquids, aerosols, gels, creams, and pastes under 3.4 ounces (100 milliliters) in their carry-on bags. Passengers are allowed up to one quart-sized bag per person, or roughly nine 3.4-ounce containers in a single quart-sized bag.

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Babies who do not have their own seat must be held securely during takeoff and landing in a parent's lap as directed by the flight attendant. You should not use a sling or front infant carrier to hold your baby on an airplane.

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