🧴 Guide · Toiletries
Aerosols on a plane: 3-1-1 in the cabin, FAA caps in the hold
Spray cans fly under two rulebooks: 3.4 oz in the cabin, 18 oz / 70 oz FAA caps in checked — and cooking spray is banned outright.
Cabin vs. Hold Rules
Aerosols in the cabin must be 100 ml or less. In checked luggage, toiletry aerosols are capped at 500 ml (18 oz) per container.
FAA Checked Baggage Caps
Hazardous flammable industrial aerosols (spray paint, cooking oil spray, engine degreasers) are strictly banned from passenger flights.
よくある質問 (FAQ)
Frequently asked questions
Can I bring hairspray in checked luggage?
Yes, medicinal and toiletry aerosols are permitted in checked baggage up to 18 oz per container and 70 oz total per person.