You can take perfume on a plane in your carry-on luggage as long as each perfume bottle is 3.4 ounces (100 milliliters) or less, complying with the TSA's 3-1-1 liquids rule. All such containers must fit comfortably within a single quart-sized, clear, resealable plastic bag, and each passenger is allowed only one such bag

. If you want to bring larger bottles of perfume, these must be packed in your checked luggage, where the maximum size per container is generally up to 500 ml (16.9 ounces), with an overall limit of about 2 kg (4.4 pounds) of perfume per checked bag

. In summary:

• Carry-on perfume size limit: 3.4 oz (100 ml) or less per bottle
• Carry-on packaging: All liquids including perfume must fit in one quart-sized clear plastic bag
• Checked luggage perfume size limit: Up to 500 ml (16.9 oz) per bottle, total quantity not exceeding 2 kg
• Packing tips: Ensure bottles are tightly sealed and packed securely to avoid spills or breakage

This applies to most flights including those in the US, UK, and Europe, though checking specific airline or country regulations before travel is recommended.