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SESK: Stuff Everyone Should Know · sesk.info/trav-formula-over-311-ok

Can formula or breast milk over 3.4 ounces go in your carry-on?

Yes, but tell the officer and have it screened separately.

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  1. No, only in checked bags
  2. Yes, tell the officer first ✔
  3. Only with a doctor's note

Why: Formula, breast milk and toddler drinks over 3.4 ounces are allowed in carry-on. Tell the officer at the start of screening so they can be screened separately.

Huh, didn't know that: Clear bottles are easier to screen than pouches or plastic bags.

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I carried baby formula through security. TSA said the baby was the real cargo.
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References

Answer: Yes, tell the officer first. Formula, breast milk and toddler drinks over 3.4 ounces are allowed in carry-on. Tell the officer at the start of screening so they can be screened separately.

  1. TSA: Traveling with children www.tsa.gov/travel/special-procedures/traveling-children
    Formula, breast milk, toddler drinks, and baby/toddler food (including puree pouches) in quantities over 3.4 oz (100 ml)
    Checked 2026-10-11.

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