Last checked: July 2026 — sourced against TSA “What Can I Bring?” and FAA PackSafe. Rules change; re-verify before you fly.
The verdict, in one line
Perfume is a liquid, so in your carry-on it has to follow the 3-1-1 rule: each bottle 3.4 oz (100 ml) or smaller, all of them together fitting inside one quart-size zip bag. In your checked bag full-size bottles are fine, up to the FAA’s total toiletry limit. The one thing that trips people up: TSA measures the bottle size printed on the container, not how much is left in it — a half-empty 100 ml-plus bottle still fails.
Carry-on: the 3-1-1 math
The rule that governs perfume in the cabin is TSA’s Liquids, Aerosols and Gels rule, better known as 3-1-1:
- 3.4 — every liquid container must be 3.4 oz (100 ml) or less, by its stated capacity.
- 1 — they all go in one clear, quart-size (roughly 1 liter) resealable bag.
- 1 — one such bag per passenger, pulled out for the bin at screening.
Perfume, cologne, eau de toilette and body mist all count as liquids. A single 3.4 oz bottle is generous for a trip — most designer bottles are 1 oz to 3.4 oz, so a standard travel or full 100 ml bottle clears. A 3.5 oz bottle does not, even if you’ve used half of it. If you love a large bottle, decant into a labeled travel atomizer of 100 ml or less.
Solid perfume — the balm or stick kind — is not a liquid and is not bound by 3-1-1 at all. Pack it wherever you like. Duty-free perfume bought after the checkpoint is also exempt from the size limit; keep it in the sealed tamper-evident bag with the receipt, especially if you have a connecting flight.
Checked bag: bigger bottles, but there’s a ceiling
The 3-1-1 size limit does not apply to checked luggage, so your full-size bottles can go in the hold. But perfume is alcohol-based, which makes it mildly flammable, so it falls under the FAA’s PackSafe limits for medicinal and toiletry articles. Those limits are per passenger, across all such items combined:
| Limit | Per container | Total per passenger |
|---|---|---|
| Volume | 17 fl oz (500 ml) | 68 fl oz (2 L) |
| Weight | 18 oz (0.5 kg) | 70 oz (2 kg) |
In plain terms: no single perfume bottle over about 17 fl oz, and everything flammable-toiletry you pack — perfume, aftershave, hairspray, nail polish — adding up to no more than 68 fl oz. For a normal traveler that ceiling is nearly impossible to hit. Wrap glass bottles in clothing and keep sprayers capped so nothing snaps or triggers under pressure.
How to pack it so it survives
- Carry-on: 3.4 oz max, upright inside the quart bag; put the bag near the top so you can grab it fast.
- Checked: cap the nozzle, seal the bottle in a zip bag in case of leaks, and cushion glass in the center of the bag.
- Pressure changes can push liquid past a worn sprayer — a plastic bag around the bottle saves your clothes either way.
- Decanting into a 100 ml travel atomizer is the cleanest way to keep a scent in your carry-on without hauling the boutique bottle.
The airline & international layer
US airlines defer to TSA and FAA on perfume — American, Delta, United and Southwest add nothing beyond the rules above, though all forbid using aerosol products in the cabin. Where things shift is abroad:
- UK, EU, most of the world: the same 100 ml-per-container, one-clear-bag standard applies at security. Some UK and EU airports with new CT scanners have relaxed the liquids limit, but rollout is uneven — assume 100 ml unless the airport’s own site says otherwise.
- Duty-free on connections: a sealed duty-free perfume bought outside the EU/UK can be seized at a European transfer checkpoint if the STEB bag is opened or the receipt is missing. Keep both intact.
- Checked flammable limits are broadly harmonized worldwide (they come from international dangerous-goods rules), so the 500 ml / 2 L figures travel well.
As always, the officer at the checkpoint has the final say and can refuse any item. These figures were last checked in July 2026; confirm with your airline and departure airport before you fly.
Sources & verification
Every claim on this page was checked against the primary sources below and last verified July 2026.
- TSA — Perfume is permitted in carry-on within the 3.4 oz / 100 ml limit and in checked bags. tsa.gov/…/perfume
- TSA — The 3-1-1 rule: each liquid container 3.4 oz / 100 ml or less, in one quart-size bag, one bag per passenger. tsa.gov/…/liquids-aerosols-gels-rule
- FAA — Checked flammable-toiletry limits: 17 fl oz (500 ml) per container and 68 fl oz (2 L) total per passenger. faa.gov/hazmat/packsafe/medicinal-toiletry-articles
Related rules: The TSA 3-1-1 liquids rule · Sunscreen · Deodorant · Toothpaste
FAQ
Can I bring a full 100 ml perfume bottle in my carry-on?
Yes. 100 ml equals 3.4 oz, which is exactly the carry-on limit, so a full 100 ml bottle is allowed as long as it fits in your quart bag with your other liquids.
My bottle is half empty but says 4 oz — is that OK for carry-on?
No. TSA goes by the container’s printed capacity, not how much liquid is inside. A 4 oz bottle is over the 3.4 oz limit even when nearly empty. Put it in checked luggage or decant into a 100 ml travel atomizer.
How much perfume can I pack in a checked bag?
No bottle over about 17 fl oz (500 ml), and all your flammable toiletries combined — perfume, aftershave, hairspray, nail polish — under 68 fl oz (2 L) per person, per FAA PackSafe.
Does solid perfume count as a liquid?
No. Solid perfume balms and sticks are exempt from the 3-1-1 rule and can go straight in your carry-on without the quart bag.