In the US, the TSA has very specific regulations for what can and can't be brought on a plane in a carry-on bag, especially when it comes to liquids. Can a standard tube of toothpaste be brought on a plane, or does it exceed the limitations? If it is too large, would a half-empty tube be accepted?

What about travel outside the US? Is toothpaste generally allowed on planes?

  • What exactly do you mean by "standard tube"? Is this a US-measure very much like the whole gallon-over-litre thing? I've used toothpaste tubes ranging volumes from 25ml to 100ml.
    – JoErNanO
    Commented Oct 29, 2014 at 17:54

2 Answers 2


I believe "standard" tubes of toothpaste are about 6 ounces or more. This would not be allowed within the US as TSA regulations limit liquids and gels to containers of at most 3.4 oz (100 ml). Larger containers which are partially empty are specifically forbidden. See http://www.tsa.gov/311/311-carry-ons.shtm.

  • 1
    I have found anything in a tube as well as anything that is a past, gel, jam, or jelly gets counted as a liquid regardless of weather it is or not.
    – Stuart
    Commented Dec 25, 2011 at 1:38
  • 1
    @Stuart: according to the policy, they are supposed to be treated as liquids. The policy applies to "liquids, gels, aerosols, creams and pastes"
    – Max
    Commented Oct 25, 2014 at 8:58
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    Your link is broken, but you are correct. I had a tube that had a tiny bit of paste left, it was folded right to a tiny bit at the end. TSA unrolled it pointed at "6oz" and tossed it in the trash. Commented Mar 4, 2015 at 13:10

There are many toothpastes on the market with package sizing below the 100ml limit:

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Make sure to buy one before you leave and you won't have any issues at the airport. Source: traveling with toothpaste on numerous flights.

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