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 breast milk on a plane with Southwest Airlines when traveling with a baby?
Bringing breast milk on a Southwest flight
Yes — you may bring breast milk on board with Southwest. It is allowed in carry-on bags and is exempt from the 3.4 oz (100 ml) liquid limit. At the security checkpoint, you should tell the TSA officer that you have breast milk for an infant; it will receive additional screening (X-ray or inspection). Ice packs, frozen gel packs and dry ice to keep milk cold are also permitted but may be subject to screening and quantity limits.
- Pack breast milk in carry-on if possible — easier access and less risk of thawing or loss.
- Declare it at security so officers can screen appropriately; containers may need to be opened for testing.
- No medical note required — but you can bring one if it makes you more comfortable.
- International travel: check customs rules at your destination — some countries have limits on bringing in dairy products.
If you need help at the gate or onboard, Southwest staff are generally willing to assist. Safe travels!
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