Whether you’re traveling with sunscreen, hairspray, or something else that’s an aerosol, it’s important to understand the restrictions prior to boarding so you know what to expect. Otherwise, your items will be taken away by security. Yes, you can take aerosol on a plane, but how much will depend on if you’re carrying on or checking your luggage.

Let’s explore more about the restrictions, so you don’t find yourself having to repurchase after passing through security.

How Big Should Aerosol Cans Be in Carry-on Luggage?

Aerosols are included in the overall liquids rule, so you are allowed to bring 3.4 ounces or 100 milliliters in a single travel-size container. All of your liquids, including aerosols, gels, creams, pastes, and more, need to fit in a single one-quart-sized bag, which will need to be removed from your bag as you pass through security.

These rules only apply to carry-on bags, and they were put in place as a security precaution. To put it simply, as you travel with carry-on luggage, you need to consider the 3-1-1 rule: 3.4 ounces for one passenger in a one-quart-sized bag.

Are There Restrictions on Aerosols in Checked Luggage?

No, the 3-1-1 rule only applies to carry-on luggage. There are no restrictions to what you can put in your checked luggage when it comes to liquid, though keep in mind that travel can be rough on your personal items, even if they are marked fragile.

As a best practice, you should always put any liquids and other breakable items in a bag to prevent them from leaking. It does not need to be a quart size, which is helpful when traveling with full-sized products.

What Happens If My Aerosol is Confiscated?

If you don’t follow the rules, your items will get confiscated by airport security. There is nothing you can do if you bring items that are too big or do not fit in a single bag. If your items have been confiscated, you will simply need to repurchase them.

There are stores within the airport that can help with many basic toiletries like hairspray, sunscreen, mouthwash, and more, though they tend to be marked up. You can also purchase them when you get to your final destination, request some free of charge from your hotel, or buy them in the hotel shop.

Most airport security professionals are strict, so it’s best not to gamble when it comes to backing items that are too big.

So, Can I take Aerosol on a Plane?

Yes! You can absolutely take aerosols on a plane, but you’ll want to be careful how much if you plan on carrying on. Keep the following rules in mind if you do.

  • Aerosols apply to the liquid rule, so you are only allowed 3.4 ounces or 100 milliliters in your carry-on.
  • All of your liquid items, including aerosol, gels, creams, pastes, and other liquids, must fit in a single, one-quart-sized bag.
  • All passengers are only allowed one bag per person.

These rules do not apply if you are traveling with a child and have breast milk or other items to help care for the child. Unfortunately, none of those qualify as aerosol and, as such, would not be an exception to the rule.

If you do not adhere to the rules, your items will likely be confiscated, and you’ll need to replenish them. The 3-1-1 rule is in place to keep passengers safe while traveling, so it’s best not to take the chance. You’re better off spending your money on fun stuff while traveling instead of buying things you already had!