What can you take on a domestic flight in Australia?
There is no liquid limit on domestic flights within Australia.
You can take a full water bottle and full-size toiletries through domestic screening. The 100ml rule is a condition of international screening, not a rule about aircraft. The same is true of the powder limits. What does not change is dangerous goods - power banks, lighters, aerosol propellant - and sharp items, which are identical either way.
Below is every item on our A to Z, sorted by what the domestic flight actually changes: 13 get easier, 37 are identical, 4 swap an international rule for an interstate one, and 7 stop applying altogether.
Domestic vs international, side by side
| What | International departure | Domestic within Australia |
|---|---|---|
| Liquids, aerosols, gels | 100ml containers in one clear bag | No limit |
| Water bottle | Empty through the checkpoint | Full is fine |
| Powders | Inorganic capped at 350ml | No limit |
| Lithium batteries and power banks | Cabin only, 100Wh without approval | Identical |
| Scissors and knives | Blades 6cm or less in the cabin | Identical |
| Lighters and matches | One, carried on you | Identical |
| Fruit, vegetables, honey, plants | Declared at the Australian border | Interstate quarantine |
| Duty free and customs allowance | Applies on arrival | Does not apply |
| Cash over $10,000 | Must be reported | Does not apply |
Sources: TravelSECURE - domestic flights , CASA - lithium batteries , Interstate Quarantine (Australian governments) .
The one exception worth knowing. A domestic flight that leaves from an international terminal can be screened under international rules, because the checkpoint is shared. If you are connecting off an international arrival, or departing a terminal that handles both, treat the liquid rule as though you were flying overseas.
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.
Relaxed: no limit on a domestic flight
These are screening limits, and screening limits are a condition of international departure. Domestically there is no cap on any of them.
Unchanged: exactly the same either way
The biggest misconception about domestic flying is that everything relaxes. Dangerous goods and sharp items do not. These rules are about what is safe on an aircraft, so the flight being domestic changes nothing.
Different: quarantine replaces biosecurity
Australia controls fruit, vegetables, honey and plants between its own states, not just at the international border. This is the one place a domestic flight has a rule an international one does not.
Not applicable: there is no domestic border
Customs allowances, duty free and the cash report all happen when you enter Australia. A domestic flight never crosses that line.
Taking food on a domestic flight: the rule nobody expects
Security has no interest in your sandwich. Quarantine does. Australia controls fruit, vegetables, honey and plants moving between its own states, which is why a bag of apples that flew from Melbourne to Sydney without comment gets binned on the way into Perth.
Western Australia, Tasmania and South Australia all run border controls, and the fruit fly exclusion zones add more inside the eastern states. The zones move with outbreaks, so the durable advice is the boring one: eat it, bin it, or declare it, and check the destination state on the day rather than trusting a list. The official checker is Interstate Quarantine , which is run by the state and federal agriculture departments together.
What this does not change
Your airline's baggage allowance is its own policy and has nothing to do with any of the above - carry-on size and weight are set by the carrier and differ between them, domestic and international alike. And if any leg of your trip leaves Australia, that leg is screened as an international departure, whatever the domestic legs allowed.
Flying overseas instead? The full A to Z of what you can take on a plane covers all 61 items against the international rules, and the pre-departure checklist puts the rest of the trip in order.
And if the worry is whether the flight goes at all rather than what is in the bag: how often Australian domestic flights are cancelled has the official record for every major route and airline.
Domestic flight rules FAQs
Is there a liquid limit on domestic flights in Australia?
No. You can take a full water bottle and full-size toiletries through domestic screening in Australia. The 100ml rule is a condition of international screening, not a rule about aircraft, so it does not apply to a flight between Australian cities. The one thing to watch is a domestic flight that departs from an international terminal, where international screening can apply to everyone going through that checkpoint.
Can you take a full water bottle on a domestic flight in Australia?
Yes. There is no volume limit at domestic screening, so a full bottle goes through as it is. On an international departure the same bottle has to be empty through the checkpoint and filled airside.
Are scissors and knives allowed on domestic flights in Australia?
The sharp-item rules do not relax domestically. Scissors with blades of 6cm or less from the pivot are allowed in carry-on on both domestic and international flights; anything longer, and any knife, goes in checked baggage either way. The domestic relaxation is about liquids and powders, not blades.
Do power bank rules change on a domestic flight?
No. Lithium battery limits are dangerous-goods rules set by CASA and the airlines, not security screening rules, so they are identical domestically: up to 100Wh with no approval, carry-on only, never in checked baggage, and no using or charging them in flight.
Can I take food on a domestic flight in Australia?
Security will not stop you, but quarantine might. Australia restricts fruit, vegetables, honey and plants moving between states: Western Australia, Tasmania and South Australia all have border controls, and the fruit fly exclusion zones add more. Eat it, bin it or declare it before you fly, and check the destination state rather than assuming.
Do you need photo ID for a domestic flight in Australia?
Airlines set this rather than government: the major Australian carriers ask for photo identification at check-in or the gate for domestic flights, and a passport is not required. Carry a driver licence or equivalent, and check your airline if you are travelling without one.
Last reviewed 2 September 2026. The domestic and international split above is structural - screening limits are a condition of international departure, dangerous-goods rules are not - but airlines can be stricter than the government baseline, and quarantine zones move with outbreaks. For anything unusual, the linked sources are the final word.