01The rules in detail
Deodorant spray, hairspray, shaving foam and sunscreen spray are ‘toiletry aerosols’ and allowed with limits: 100 ml in the cabin, larger sizes in checked bags (US: 18 oz / 500 ml per container, 70 oz / 2 kg total). Solid and roll-on deodorant is unrestricted (roll-on gels over 100 ml must be checked). Aerosols that are not toiletries — WD-40, spray paint, bear spray, cooking spray — are prohibited in both.
02Tips
- Switch to stick deodorant and sunscreen lotion to skip the bag.
- Caps must be on aerosols in checked luggage.
03Frequently asked
Can I bring aerosol deodorant in my carry-on?
Yes, with limits. Carry-on: aerosol toiletries under 100 ml in the liquids bag. Checked: toiletry aerosols allowed up to 500 ml per container and 2 kg total, caps on. Non-toiletry aerosols (spray paint, cooking spray, insecticide) are banned.
Can I pack aerosol deodorant in checked luggage?
Yes, with limits. Carry-on: aerosol toiletries under 100 ml in the liquids bag. Checked: toiletry aerosols allowed up to 500 ml per container and 2 kg total, caps on. Non-toiletry aerosols (spray paint, cooking spray, insecticide) are banned.
Are the rules the same outside the US?
Mostly similar for liquids and batteries, which follow international standards, but sharp objects, tools, lighters and self-defense items vary widely by country. Check the departure airport's rules and the destination's laws.
TSA and other agencies allow officers to refuse any item they judge unsafe, and rules change. This page summarises published guidance as of the verified date; confirm on tsa.gov or your airport's site before packing anything unusual.