Clear resealable toiletry bag with 100ml bottles
Amazon Australia
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Can you take liquids, aerosols and gels on a plane?
Carry-on: Conditions Checked: Yes No limit on domestic flights
International flights: containers of 100ml or less, all fitting in one resealable clear bag of about 20cm x 20cm, one bag per passenger. Bigger containers go in checked baggage.
Most domestic flights within Australia have no liquid limits at all - the 100ml rule is an international-screening rule.
The 100ml rule is an international-departure screening rule, and almost every argument about it comes from people applying it in the wrong place. Within Australia, most domestic flights have no liquid limit at all - a full-size shampoo in your cabin bag is fine.
Three conditions have to be met together on an international departure, and missing any one of them is what actually causes items to be surrendered. Each container must be 100ml or less by its stated capacity; all of them must fit in one clear resealable bag of about 20cm x 20cm; and you get one such bag per passenger.
The container size is what it says on the bottle, not how much is left in it. A half-empty 200ml moisturiser is still a 200ml container, and it will be taken - this single misunderstanding accounts for a large share of what ends up in the bin at screening.
Anything bigger simply goes in checked baggage, where there is no screening limit. The exceptions worth knowing are medicines, baby formula and baby food, which are allowed in larger quantities in the cabin when you declare them at screening.
Flying within Australia? There is no limit.
No limit at domestic screening. The 100ml rule is an international-departure rule, so a full-size one is fine in your carry-on within Australia.
Two rules explain most of this page. Lithium batteries fly in the cabin so the crew can reach them, and the 100ml liquid limit is an international rule. Your flight home is screened under the departure country's rules, which are sometimes stricter than Australia's.
Liquids, aerosols and gels: common questions
What is the liquid limit for flights from Australia?
On international departures, containers of 100ml or less, all fitting inside one resealable clear bag about 20cm x 20cm, one bag per passenger. Most domestic flights within Australia have no liquid limit at all.
Is there a liquid limit on domestic flights in Australia?
Generally no. The 100ml rule is an international-screening rule, so a full-size bottle is normally fine in your carry-on on a domestic flight within Australia.
Does the 100ml limit apply to a part-used bottle?
Yes, and this is the most common mistake. The limit is the container’s stated size, not how much is left in it, so a half-empty 200ml bottle is still over the limit and will be surrendered.
How big can the clear liquids bag be?
About 20cm x 20cm, resealable and transparent, and one bag per passenger. Everything you carry through screening as a liquid, aerosol or gel has to fit inside it with the bag able to close.
Can you take more than 100ml of medicine or baby formula?
Yes. Medicines, baby formula and baby food are allowed in larger quantities in the cabin. Declare them at the screening point and carry them separately from your liquids bag.
What counts as a liquid at airport screening?
Liquids, aerosols and gels all count, which is wider than people expect: toothpaste, sunscreen, deodorant, mascara, lip gloss and soft cheeses are all treated as liquids under the rule.
Flying soon? Screening is the easy part
What stops Australians at the airport is more often the passport, the visa or the phone than the bag. Say where you are going and we will show you the entry rules for an Australian passport, what an eSIM actually costs there, and what the insurance covers.
Gear that meets this rule
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Liquids & toiletries
Water bottles
Take it through international screening empty and fill it airside.
Sunscreen
Counts as a liquid internationally, so 100ml or under in the cabin.
Aerosol deodorant and hairspray
Toiletry aerosols are allowed: the 100ml rule applies in the cabin internationally, and full sizes can be checked with the cap fitted so the nozzle cannot be pressed in transit.
Perfume and cologne
A liquid like any other: 100ml or under for an international cabin bag, any size in checked baggage.
Hand sanitiser
Follows the liquids rule internationally - 100ml or under in the clear bag.
Duty-free alcohol and perfume
Bought airside, it can exceed 100ml if it stays in the sealed tamper-evident bag with the receipt inside.
What is actually worth booking.
New destination guides and side-by-side comparisons for Australian travellers - which eSIM, which travel card, which insurance is worth paying for, and what to sort before you go. Prices in Australian dollars, a few emails a year.
Packing something else? The full A to Z of what you can take on a plane covers 61 items, the domestic flight rules set out what changes when you are not leaving the country, and the pre-departure checklist puts the rest of the trip in order.
Last reviewed 2 September 2026. Screening, dangerous-goods and biosecurity rules change, and airlines can be stricter than the government baseline. For anything unusual, the linked source and your airline's dangerous-goods page are the final word.