Where do I put my aerosols when flying?

So it is important to remember that all liquid, aerosol and gel items must be stored in containers 3.4 ounce or smaller. All of the 3.4 ounce containers must fit in a sealed 1-quart, clear plastic, zip-top bag, and only one plastic zip-top bag is permitted per passenger inside carry-on baggage.



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Aerosols fall into the category of liquids and therefore cannot exceed 100 ml (maximum container capacity). Aerosols containing higher amounts must go in checked baggage, and it is advisable to make sure that the container is tightly closed and protected so that the button is not pressed during the flight.

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Any item that alarms or is unable to be screened will not be permitted in your carry-on bag. We recommend packing all liquids, gels, and aerosols that are over 3.4 oz or 100 ml in your checked baggage, even if they are in a secure, tamper-evident bag.

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Items you shouldn't pack in your checked luggage
  • Prescription medications.
  • Passports and travel documents.
  • Electronics, such as video game systems and computers.
  • Cameras (camera film, including Polaroid film, should be hand-checked by TSA agents so it doesn't go through the X-ray machine)
  • Jewelry and other valuable items.


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So it is important to remember that all liquid, aerosol and gel items must be stored in containers 3.4 ounce or smaller. All of the 3.4 ounce containers must fit in a sealed 1-quart, clear plastic, zip-top bag, and only one plastic zip-top bag is permitted per passenger inside carry-on baggage.

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Yes you can take hairspray on a plane. In hand luggage it is subject to the same rules as liquids and must be less than 100ml or 3.4Oz and you will often be asked to put it in a clear bag. Larger hairsprays need to go into checked luggage, but there are a few minor restrictions that you can read in the next section.

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Stick deodorant is fine in any size. Well, almost any size… Powders and crystals are good to go as well. Spray, Gel, Liquid, Cream, Pastes, and Roll-On deodorants need to be in containers no larger than 3.4 ounces and placed in a clear quart-sized baggie.

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Is toothpaste considered a liquid by the TSA? Yes, toothpaste must adhere to the 3-1-1 rule for liquids and gels. Toothpaste can be brought through TSA security in your carry-on as long as it is 3.4 ounces (100 milliliters) or less and placed in a 1-quart bag.

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In fact, you are allowed to travel with liquid or aerosol spray sunscreen with only an easy-to-follow guideline. According to the TSA, to carry sunscreen inside your cabin bags, it needs to be less than or equal to 100 ml/3.4 oz in volume. It is the same for any other liquid toiletries, such as perfumes and deodorant.

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Summing Up: Traveling With Aerosols
But remember that you can't bring all aerosols on planes, like pepper spray, WD-40, or any other aerosol that isn't intended to be used on the skin and is flammable. You most likely won't get into trouble by bringing them, but you will be asked to discard them at the airport.

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Beginning May 3, 2023, your driver's license will need to be REAL ID-compliant if you want to use it to fly within the U.S. It's part of a law passed by Congress.

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As a guide, anything larger than A5 size or an iPad mini needs to be placed in a tray with nothing covering it up. If you can spray, spread or pour something at room temperature, it counts as a liquid in aviation security terms. This includes aerosols such as asthma inhalers and foodstuffs, like butter or jam.

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We recommend packing all liquids, gels, and aerosols that are over 3.4 oz or 100 ml in your checked baggage, even if they are in a secure, tamper-evident bag. Liquids more than 3.4 oz or 100 ml not in a secure, tamper-evident bag must be packed in checked baggage.

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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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If you want to travel with your full-size aerosol containers of antiperspirant, hairspray, suntan lotion, shaving cream, and hair mousse, you can do so by packing them in your checked baggage. That way, you'll be sure to have your favorite toiletries with you when you arrive at your destination.

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Yes, once you check them in and they go off on the conveyor belt, your baggage will be screened by an X-Ray machine and also often with chemical sniffers. If there is any doubt or something suspicious about your bag, a member of security personnel will inspect it by hand.

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You can bring your medication in pill or solid form in unlimited amounts as long as it is screened. You can travel with your medication in both carry-on and checked baggage. It's highly recommended you place these items in your carry-on in the event that you need immediate access.

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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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