Clear resealable toiletry bag with 100ml bottles
Amazon Australia
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Can you take water bottles on a plane?
Carry-on: Conditions Checked: Yes No limit on domestic flights
Take it through international screening empty and fill it airside. On domestic flights a full bottle is fine.
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.
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
Chosen because it satisfies the rule above, not because of what it costs. Links go to Amazon Australia and we may earn a commission, which never changes what we recommend.
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Liquids & toiletries
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.
Alcohol
In the cabin the liquids rule applies.
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.