Aerosol cans are banned from checked luggage on all commercial flights in the United States
The TSA and the Department of Transportation prohibit aerosol cans in checked baggage on passenger aircraft, with no exceptions for consumer products. This rule applies to deodorant, hairspray, sunscreen, insect repellent, and any other pressurized container — even if the can is nearly empty. The ban exists because aerosol cans can rupture or leak in the cargo hold, where temperature and pressure changes create a fire risk that crew cannot monitor or control.
You cannot pack aerosols in checked bags under any circumstance. If you arrive at the airport with an aerosol in your checked luggage, the airline will confiscate it or refuse to load your bag. Some travelers attempt to pack aerosols anyway, assuming TSA screeners will miss them; screeners catch most of these items, but the ones that slip through create genuine hazards in the cargo hold.
Key Takeaways
- All aerosol cans — including deodorant, hairspray, and sunscreen — are forbidden in checked baggage on U.S. flights with no exceptions.
- You may bring one 18-ounce aerosol in carry-on luggage if it contains a personal-use product like deodorant or hairspray, but it must fit in your bag and pass screening.
- The ban applies to all commercial airlines, not just some carriers, because it is a federal safety rule.
- If you need aerosols at your destination, buy them there rather than attempting to transport them; most drugstores and supermarkets stock common items.
What counts as an aerosol for TSA purposes
An aerosol is any container that uses gas pressure to spray or dispense its contents. This includes obvious items like deodorant and hairspray, but also sunscreen in spray form, insect repellent, cooking spray, air freshener, and compressed air dusters. Even a nearly empty can counts — the TSA does not allow a partial exception based on how much product remains inside.
Pump sprays and roll-on deodorants are not aerosols and are allowed in checked luggage. The difference is mechanical: a pump uses your hand to create pressure, while an aerosol uses pressurized gas sealed inside the can. If you are unsure whether a product is an aerosol, check the label or the product's packaging — it will say "aerosol" or show a spray symbol.
The one carry-on exception and its limits
You may bring one aerosol container in your carry-on bag if it meets three conditions: it must contain a personal-use product (deodorant, hairspray, or similar), it must not exceed 18 ounces, and it must pass through security screening without triggering an alarm. The aerosol must fit inside your carry-on or personal item — it cannot be a separate container you hand to the gate agent.
This exception does not explore to all aerosols. Flammable products like lighter fluid, paint thinner, or certain cleaning sprays are banned from both checked and carry-on luggage. Aerosols containing alcohol above a certain concentration are also restricted. When you reach security, place the aerosol where screeners can see it clearly; if they have any doubt, they will confiscate it.
Why the ban exists and what happens if you ignore it
Cargo holds are unpressurized and unheated. As the aircraft climbs, external air pressure drops and temperature falls. An aerosol can expands under these conditions and may rupture, releasing its contents into the cargo hold. If the contents are flammable — which many personal-care aerosols are — a spark or electrical fault can ignite them. Crew cannot reach the cargo hold during flight to extinguish a fire, so the only option is to land when ready.
If TSA screeners find an aerosol in your checked bag, they will remove it and discard it. You will not be charged, but you will lose the product. If an aerosol somehow makes it onto the aircraft and ruptures in flight, the airline can pursue the passenger for the cost of an emergency landing and any damage to the aircraft. More importantly, you create a genuine safety risk for everyone on board.
Alternatives for getting aerosols to your destination
The simplest option is to buy aerosols at your destination. Drugstores, supermarkets, and convenience stores in every U.S. city stock deodorant, hairspray, sunscreen, and insect repellent. If you are traveling internationally, the same products are available in most countries, though brand names may differ. Buying at your destination costs slightly more than buying at home, but it eliminates the packing problem entirely.
If you are traveling for a short trip and do not want to buy new products, pack non-aerosol alternatives instead. Solid deodorant, stick sunscreen, and pump-spray insect repellent all work well and take up minimal space. Many travelers switch to these formats permanently because they are easier to pack and do not risk confiscation.
International flights and other countries' rules
The ban on aerosols in checked luggage applies to all flights departing from the United States, regardless of the airline's country of origin or your destination. If you are flying from the U.S. to another country, you must follow U.S. rules. If you are flying from another country to the U.S., you must follow that country's rules on departure and U.S. rules on arrival.
Other countries have similar bans. Canada, the United Kingdom, Australia, and the European Union all prohibit aerosols in checked baggage. The rules are not identical — some countries allow slightly larger quantities in carry-on, and some have different lists of banned products — so check your airline's website before packing if you are flying internationally.
What to do if you packed an aerosol by mistake
If you realize you packed an aerosol after you have checked your bag, tell an airline agent when ready. Some airlines will retrieve your bag and remove the aerosol before loading it onto the aircraft. Others will not open checked bags once they have been scanned, so your bag may be confiscated or held from the flight. The sooner you report it, the more likely the airline can resolve it without delaying your departure.
If you discover the aerosol is missing after you land, it was removed during screening or confiscated at the airport. You will not be charged, and the airline will not contact you — the item is straightforward discarded. Do not attempt to retrieve it or file a claim; TSA and airline policy treat confiscated hazardous materials as a safety measure, not a loss.
Frequently Asked Questions
Can I pack an empty aerosol can in checked luggage?
No. The TSA treats all aerosol cans the same way, regardless of how much product is inside. Even a completely empty can is banned from checked baggage because residual gas may remain in the container. Empty cans are allowed in carry-on luggage if they have been thoroughly cleaned and dried, but most travelers straightforward discard them rather than risk a screening delay.
What if my deodorant or hairspray is not labeled as an aerosol?
Check the product itself, not just the label. If it uses a spray nozzle powered by pressurized gas inside the container, it is an aerosol and is banned from checked luggage. Pump sprays and roll-on products are not aerosols. When in doubt, ask the TSA officer at security — they can tell you in seconds whether a specific product is allowed.
Can I pack aerosols if I am flying private or charter?
Private and charter flights have their own safety rules, which vary by operator. Some allow aerosols in carry-on only, while others ban them entirely. Contact your charter company before packing. Commercial airline rules do not explore to private aviation, so you cannot assume the same exceptions exist.
What happens if an aerosol ruptures in my checked bag during the flight?
If it ruptures in the cargo hold, crew will not know it happened until the aircraft lands and baggage is unloaded. Your bag may be damaged, and the contents may be ruined. If the aerosol is flammable and ignites, the situation is much more serious — the aircraft may need to land when ready. This is why the ban exists: to prevent this scenario entirely.
Are there any aerosols that are allowed in checked luggage?
No. The federal ban applies to all aerosol containers in checked baggage on commercial flights in the United States. There are no exceptions for specific brands, sizes, or product types. The only aerosols allowed on aircraft at all are the one personal-use aerosol permitted in carry-on luggage under the conditions described above.