Expressed breastmilk and air travel

Taking expressed breastmilk (EBM) on a plane is usually allowed, but the rules can vary depending on where you’re flying and whether your baby is travelling with you. Planning ahead can make things easier at the airport.

This guide covers travel within Australia, international departures and bringing breastmilk into Australia.

Rules for carrying liquids on planes are based on international safety standards. Each country applies these in its own way. So if you’re travelling overseas, it’s a good idea to check the rules for all countries on your journey.

In Australia, these rules are managed by the Department of Home Affairs.

Domestic flights (within Australia)

If you’re travelling within Australia, there are no limits on the amount of breastmilk or other baby products you can carry on board.

If your domestic flight leaves from an international terminal or connects to an international flight, international rules may apply instead.

International flights (departing Australia)

For international travel, there are limits on liquids in carry on luggage. There are separate allowances for baby products when your baby is travelling with you.

You can take breastmilk, formula and baby food on board. These items are not limited in the same way as other liquids, but you may be asked to bring only what you need for the flight and possible delays.

Security staff may ask you about the milk and check it at screening. They make the final decision about what can go through.

If your baby isn’t with you on an international flight, breastmilk is treated like other liquids in your carry-on luggage. Standard limits apply:

• Containers must be 100 mL or less
• Total volume must be no more than 1 litre
• Items must fit in a clear, resealable plastic bag
• You can pack larger amounts of expressed breastmilk in checked luggage if needed.

• Pack breastmilk in an insulated bag with frozen ice bricks. Onboard fridges are not available for storing expressed breastmilk
• Allow extra time at the airport in case items need checking.
• Tell security staff you’re carrying breastmilk.
• Have it ready to take out for screening.
• If possible, carry a little extra milk in case of delays.

Australia has strict biosecurity rules about what can enter the country.

According to Australian Government biosecurity guidance, you can bring in up to 10 litres of expressed breastmilk for your baby travelling with you.

If your baby isn’t travelling with you, you will need to complete an importer declaration. This confirms that the milk:

• is for personal use
• has not been sourced from donors or a commercial service
• is no more than 10 litres.

You may need to declare the milk on arrival. If you’re unsure, it’s best to declare it.

Rules can feel different depending on your situation, for example, whether your baby is travelling with you. This can make planning harder.

If you’re unsure:

• check your airline’s information before you fly
• look at Australian Government travel or border websites
• allow extra time at the airport

If you’re planning a trip and have questions about expressing or storing breastmilk while travelling, an ABA breastfeeding counsellor can help you think through your options.

© Australian Breastfeeding Association June 2026