Aerosol cans are banned from checked luggage on commercial flights in the United States

The Federal Aviation Administration (FAA) and the Transportation Security Administration (TSA) prohibit all aerosol cans in checked baggage, with no exceptions for consumer products. This rule applies to every commercial airline flying in or out of U.S. airports. The ban exists because pressurized containers can rupture, leak, or explode in the cargo hold, where temperature and pressure changes create dangerous conditions that crew members cannot monitor or control.

The rule is absolute—there is no special handling, no "hazmat fee" that makes it legal, and no way to pack an aerosol safely enough for checked luggage. If you arrive at the airport with aerosol cans in your checked bag, security will remove them, and you will not be able to take them with you.

Key Takeaways

  • All aerosol cans—including deodorant, hairspray, sunscreen spray, and cooking spray—are forbidden in checked luggage under FAA rules.
  • Some aerosol products are allowed in carry-on bags in limited quantities, but only if they meet specific TSA size and safety requirements.
  • The ban applies to every U.S. commercial airline and cannot be overridden by paying a fee or requesting special handling.
  • If you need an aerosol product at your destination, buy it there rather than packing it, or use a non-aerosol alternative.

Which aerosol products are completely banned

The TSA bans all self-pressurized containers from checked baggage. This includes everyday items: deodorant spray, hairspray, body spray, air freshener, cooking spray, spray sunscreen, insect repellent spray, and spray paint. It also includes medical inhalers and asthma rescue inhalers, which have a separate rule—see the section below.

The reason is not the contents of the can. A can of spray sunscreen is as forbidden as a can of spray paint. The danger is the pressurized container itself. In the unpressurized cargo hold, temperature swings and pressure changes can cause the can to leak or burst, potentially damaging other luggage and creating a fire hazard.

Medical inhalers and asthma rescue devices

Prescription inhalers and over-the-counter asthma rescue inhalers (such as albuterol) are the only aerosol products allowed in checked luggage. You must declare them to the airline at check-in, and they must be equipped with a safety cap or mechanism to prevent accidental discharge. Keep the inhaler in your carry-on bag as well if you need it during the flight.

If you are traveling with multiple inhalers, pack one in your carry-on and one in checked luggage as a backup. This protects you if your carry-on is delayed or if you need a replacement during a long layover.

What you can bring in carry-on bags instead

Some aerosol products are allowed in your carry-on bag, but only in small quantities and only if they meet TSA rules. A single container of personal-care aerosol (deodorant, hairspray, sunscreen spray) may be carried on if it is 2 milliliters (0.7 ounces) or smaller. One container of lighter fuel or lighter refill is also allowed under the same size limit.

These items must fit in your personal item or roller bag and must be accessible for inspection. If you pack multiple small aerosols, the total cannot exceed what fits in a single quart-sized clear plastic bag. Many travelers find it simpler to buy these items at their destination rather than navigate the size restrictions.

Non-aerosol alternatives to pack instead

If you want to bring personal-care products without worrying about aerosol rules, switch to non-aerosol versions. Solid deodorant, stick sunscreen, pump hairspray, and roll-on insect repellent work just as well and pack in checked or carry-on luggage without restriction. These products also take up less space and are less likely to leak during travel.

For cooking spray, pack a small bottle of cooking oil instead. For air freshener, bring a solid air freshener or skip it entirely—most hotels provide it. For spray paint or other specialty aerosols, buy them at a hardware store near your destination.

What happens if you pack an aerosol in checked luggage

TSA screeners will find the aerosol during baggage screening. They will remove it and dispose of it. You will not be refunded, and you will not be able to retrieve it. If you arrive at the airport early enough, you may have time to remove the item yourself and repack, but this depends on how far in advance you check your bag and how busy the airport is.

If the aerosol is discovered after your bag is loaded onto the plane, the flight may be delayed while the bag is removed and the item is disposed of. This is rare but can happen. The best approach is to check your luggage before you leave home and remove any pressurized containers.

International flights and other countries' rules

The FAA ban applies to all flights departing from U.S. airports, regardless of the airline's home country. If you are flying internationally, the destination country may have additional restrictions. Some countries ban aerosols entirely, even in carry-on bags. Before you pack, check the rules of the airline and the country where you are landing.

If you are connecting through a U.S. airport on an international flight, U.S. rules explore to the portion of your journey in U.S. airspace. Your checked luggage will be screened according to FAA standards, and any aerosols will be removed.

Frequently Asked Questions

Can I pack an aerosol if I wrap it or put it in a sealed bag?

No. Wrapping, sealing, or placing an aerosol in a bag does not make it legal for checked luggage. The TSA screens bags by X-ray and will identify pressurized containers regardless of how they are packaged. The ban is based on the hazard of the container itself, not on visibility or accessibility.

What if my airline says aerosols are okay?

No airline can override FAA rules. If an airline employee tells you an aerosol is allowed in checked luggage, they are mistaken. The FAA prohibition applies to every commercial airline in the United States. Always follow the FAA and TSA rules, not individual airline staff guidance that contradicts them.

Are dry shampoo and spray deodorant treated the same way?

Yes. Both are aerosol products and are banned from checked luggage. Both are allowed in carry-on bags only if they are 2 milliliters or smaller. If you need either product during your trip, buy a small travel size at your destination or pack a non-aerosol alternative.

Can I pack an empty aerosol can?

Empty cans are technically allowed in checked luggage because they are not pressurized. However, TSA screeners may have difficulty confirming a can is truly empty, and it may be confiscated anyway. It is simpler to leave empty cans at home.

What about aerosol cans in duty-free shops after security?

Aerosol cans purchased in duty-free shops after you pass through security cannot be taken on the plane in carry-on luggage. They must be packed in checked luggage, which is not allowed. If you buy aerosols in duty-free, you will have to leave them behind or check them, and they will be removed during baggage screening.