Reviewed by:
D. Goren
Head of Content
Updated Feb, 6
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Because airline child policies change — and parents shouldn’t have to hunt for answers.
Can you bring formula on a plane with Allegiant Air when traveling with a baby?
Bringing baby formula on Allegiant Air
Yes — you can bring baby formula. Allegiant follows TSA screening rules: breast milk, formula (ready-to-feed or expressed), and baby juice are allowed in carry-on in quantities greater than 3.4 oz. You must declare these items to the TSA officer at the security checkpoint and they may require additional screening.
Helpful points:
- Declare at security: Tell the officer you have formula/breast milk before screening.
- Powdered formula: Allowed; may be screened separately (X‑ray or swab).
- Ice packs/gel packs: Allowed if frozen solid when screened; partially frozen items may need extra inspection.
- Bring extras: Pack more than you think you need in case of delays or testing.
- International travel: Check destination customs/health rules and Allegiant’s carry-on service notes for any additional restrictions.
If you want, I can help you prepare a short checklist for packing and what to say at security.
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