Aerosol cans are prohibited in both checked and carry-on luggage on commercial flights

The Transportation Security Administration (TSA) and the Federal Aviation Administration (FAA) ban all aerosol cans from checked baggage, with no exceptions for consumer products. This includes deodorant, hairspray, sunscreen, insect repellent, and spray paint — even if the can is nearly empty. The ban exists because pressurized containers can rupture during flight due to changes in cabin pressure and temperature, creating fire and safety hazards in the cargo hold where fires cannot be when ready detected or fought.

If you pack an aerosol can in checked luggage and it is discovered during screening, the entire bag will be removed from the flight. You will not be able to retrieve it before departure. The can will be confiscated, and depending on the airline and airport, you may face a fine. There is no way to "declare" an aerosol and have it accepted — the prohibition is absolute.

Key Takeaways

  • All aerosol cans are banned from checked luggage, including common items like deodorant, hairspray, and sunscreen, with no exceptions.
  • Aerosol cans discovered in checked bags will be confiscated and your bag may be removed from the flight entirely.
  • You cannot bring aerosols in carry-on luggage either, so you cannot bring them on the plane at all through TSA screening.
  • The safest option is to purchase aerosol products at your destination or pack solid or liquid alternatives that meet TSA liquid rules.
  • Some airlines allow you to ship aerosols to your destination separately, though this is not a standard service across all carriers.

Why aerosols are treated differently than other liquids

The TSA allows certain liquids, gels, and creams in carry-on bags under the 3-1-1 rule (3.4 ounces per container, 1 quart-sized bag, 1 bag per passenger). Aerosols do not may have access to for this exception. The pressurized nature of the container itself is the hazard, not the contents. A can of deodorant is banned even though deodorant in solid stick form is allowed.

In the cargo hold of a plane, temperature and pressure drop significantly. A sealed aerosol can expands as external pressure decreases. If the seal weakens or the can has any small damage, it can rupture. Once ruptured, the propellant and contents spray into the cargo area, creating a fire risk. Unlike the passenger cabin, the cargo hold has limited fire suppression systems and no crew present to respond when ready.

What counts as an aerosol for TSA purposes

An aerosol is any product dispensed from a pressurized metal, glass, or plastic container using a propellant gas. This includes spray deodorant, hairspray, body spray, spray sunscreen, insect repellent spray, spray paint, cooking spray, air freshener, and spray-on medications. Even a nearly empty can counts — the propellant remains pressurized regardless of how much product is left.

Products that look similar but are not aerosols are allowed. Solid stick deodorant, roll-on deodorant, pump-spray sunscreen, and cream-based products can go in checked or carry-on bags. If you are unsure whether a product is pressurized, check the label. If it says "spray" or "pressurized," it is an aerosol. If it says "pump spray" or "roll-on," it is not.

Alternatives for getting aerosols to your destination

The simplest option is to buy aerosol products after you arrive. Most destinations have drugstores, supermarkets, or convenience stores where you can purchase deodorant, hairspray, or sunscreen. This costs more than bringing your own, but it avoids the risk of losing luggage or paying fines.

If you need a specific product unavailable locally, some airlines allow you to ship aerosols separately through ground transportation services. Contact your airline before your trip to ask whether they offer this service and what the cost is. FedEx and UPS also ship aerosols, though they charge hazmat fees that can be substantial. For a single can of deodorant, shipping often costs more than replacing it at your destination.

Pack solid or non-aerosol alternatives instead. Solid stick deodorant, cream sunscreen, and pump-spray insect repellent all work well and are allowed in both checked and carry-on bags. These take up minimal space and eliminate the problem entirely.

What happens if an aerosol is found during screening

TSA officers screen checked bags before they are loaded onto the plane. If an aerosol is detected, the bag is pulled from the conveyor system and set aside. You will not be notified in advance — you will discover the problem when your bag does not arrive at your destination or when you are contacted by the airline after your flight.

The aerosol will be confiscated and disposed of. The bag itself is usually returned to you, but it may arrive days later or be sent to your home address on file. Some airports charge a fee for the inspection and confiscation. If you are traveling with a tight connection, a confiscated bag means you miss your next flight and may have to rebook.

Intentionally packing a banned item can result in a civil penalty from the TSA. While enforcement varies, fines can range from several hundred dollars upward. The risk is not worth it for a can of deodorant.

International flights and different country rules

If you are flying internationally, the ban applies to all legs of your journey. Even if your destination country has different rules, you cannot bring aerosols through U.S. airport security. If you are connecting through a U.S. airport on an international trip, the same TSA ban applies.

Some countries have their own additional restrictions on aerosols beyond the U.S. rules. Before packing for an international trip, check the regulations of the country you are flying to and the country you are flying from. Your airline's website usually lists these restrictions, or you can contact the airline directly.

Carry-on luggage rules for aerosols

Aerosols are also banned from carry-on bags, so you cannot bring them through security at all. This applies to the same products: deodorant, hairspray, sunscreen, and insect repellent. The ban is total — there is no way to bring an aerosol on a plane, whether in checked or carry-on luggage.

If you forget about an aerosol in your carry-on bag and discover it at security, TSA officers will confiscate it. You can choose to throw it away yourself before reaching the checkpoint to avoid the confiscation process, but either way, the aerosol does not board the plane.

Frequently Asked Questions

Can I bring a travel-size aerosol can in my checked bag?

No. Size does not matter — all aerosol cans are banned from checked luggage, including travel-size or nearly empty cans. The pressurized container itself is the hazard, regardless of how much product is inside.

What if I wrap the aerosol can in plastic or put it in a sealed bag?

Wrapping or sealing does not change the ban. TSA screening will detect the pressurized container, and it will be confiscated. The wrapping does not make the can safe to transport in cargo.

Are there any aerosol products that are allowed in checked bags?

No. All aerosol cans are prohibited in checked luggage without exception. This includes medical inhalers, which have their own separate rules — inhalers for personal use are allowed in carry-on bags only, not checked bags.

Can I mail an aerosol to my hotel or destination before I travel?

Yes, you can ship aerosols through ground carriers like FedEx or UPS, though they charge hazmat fees. For most consumer products, the shipping cost exceeds the product cost. Mailing to your hotel works if you have time before arrival and know your exact address.

What if my airline says aerosols are allowed?

No airline can override TSA or FAA rules. If an airline representative tells you aerosols are allowed, they are mistaken. The ban is federal law, not airline policy. Always follow TSA and FAA rules, which are the same across all U.S. carriers.