For ordinary US carry-on screening, pack perfume in a container no larger than 100 mL or 3.4 fluid ounces and place it with your other liquids in the permitted quart-size bag. Checked baggage has a separate FAA medicinal/toiletry allowance. Passing one check does not remove the other applicable limits.
Keep the two rules in different columns
| Check | Relevant limit | What it applies to |
|---|---|---|
| TSA ordinary carry-on liquids | Containers no larger than 3.4 oz/100 mL; one quart-size liquids bag per passenger | Perfume alongside other ordinary liquids, gels and aerosols |
| FAA medicinal/toiletry allowance | Aggregate no more than 2 kg or 2 L per person; each container no more than 0.5 kg or 500 mL | Applicable personal-use medicinal and toiletry articles, including perfume |
TSA’s travel tips and packing checklist describe the 3-1-1 rule. FAA’s toiletry page describes its aggregate allowance and explicitly notes that carry-on liquids remain subject to TSA’s smaller container limit.
The FAA aggregate is not a separate perfume-only allowance. Count the applicable toiletries together, and check carrier and international requirements for the actual journey.
A partly empty large bottle stays large
An illustrative 150 mL bottle with only 20 mL left is still a 150 mL container. Its remaining contents do not turn it into a compliant ordinary carry-on container.
A smaller atomizer can address that capacity question, provided its labeled size and the shared liquids-bag requirement are satisfied. The atomizer also needs a filling method compatible with your perfume bottle. Do not assume a decorative cap can be removed or that every spray valve accepts a bottom-fill device.
The site’s refill-system guide addresses that separate compatibility job. Neither a refill label nor a travel label establishes baggage compliance by itself.
Checked baggage has its own packing check
Confirm the individual capacity and the applicable aggregate quantity, rather than assuming that checking a bag permits any amount. For aerosols, FAA also requires the release device to be protected against accidental discharge.
Treat sprays according to the actual product and carrier instructions. This source comparison does not establish a universal leak-proof packing method or permission to use strong-smelling products during flight.
Read the whole itinerary
The sources here cover US rules. Other airports, connections and carriers can have different requirements. A duty-free purchase or an airport using different screening equipment does not establish permission at every later checkpoint.
Before departure, check the official instructions for each relevant airport and airline. Record bottle capacity, where it will be packed and any applicable connection restriction. Ordinary perfume should not be presented as a medical-liquid exception.
Method and limits
We reconciled TSA and FAA guidance on October 11, 2026. The original asset is the two-rule matrix and capacity example. We did not perform an airport screening, leakage test or airline assessment. Current authorities and the actual itinerary control the travel decision.