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Liquid Limits

What to do if your return airport has stricter liquid rules

Last updated Updated Apr 2026· Reviewed against current airport security guidance

Short answer

The airport you depart from sets the rule. On the return, that's a different airport with potentially different limits. Plan for the stricter side.

General guidance

Rule basis: General airport security guidance — rules can vary between airports and change over time. Confirm with your departure airport before you fly.

What to do: Pack to 100ml per container in a single 1-litre clear bag unless you've confirmed a larger allowance at both your departure airports.

Liquid Limits is a travel planning tool, not an official aviation source. Always confirm with the airport before you travel.

Pack to the stricter rule from the start

Liquid Limits defaults to the stricter of the two airports. If you pack within that limit on the way out, you'll pass on the way home too.

Bought something abroad? Check before binning it

Sealed duty-free in a STEB bag with the receipt may still pass even at strict airports — as long as the seal is intact and it's within 36 hours. Bigger souvenir bottles need to go in checked luggage.

If you're not checking a bag

Cheap option: buy a hold-luggage allowance just for the return. Cheaper option: post the bottle home from the destination.

If you're connecting

Each transfer security check applies its own airport's rule. STEB liquids over 100ml can be confiscated at re-screening in the US and some Asian hubs.

Check your trip

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