Flying With Breast Milk: TSA Rules Every Breastfeeding Parent Should Know

Flying with breast milk can feel stressful, especially when TSA screening rules aren't always applied consistently. Fortunately, federal protections now provide clearer guidance for traveling with breast milk, formula, pumping equipment, and ice packs.

Thanks to the Bottles and Breastfeeding Equipment Screening Enhancement Act—better known as the BABES Enhancement Act—parents now have clearer protections. Passed in 2025, the BABES Enhancement Act strengthens the original 2016 BABES Act by requiring clearer TSA rules, better officer training, and more consistent screening nationwide. In short: fewer surprises at security and more confidence for breastfeeding parents.

Below is a streamlined guide to flying with breast milk and what this new law means for traveling parents.

What is the BABES Enhancement Act? 

The BABES Enhancement Act requires the TSA to:

• Publish clear, updated screening rules for breast milk, formula, baby food, and pumping equipment

• Train TSA officers consistently so policies are applied the same way at every airport

• Clearly communicate parents’ rights at security checkpoints

• Update guidance every five years to reflect new technology and family needs

Endorsed by organizations like March of Dimes, ACOG, MomsRising, and the Society for Maternal-Fetal Medicine, the law marks a meaningful improvement for breastfeeding parents who fly.

Can you bring breast milk through TSA?

Yes—you can bring breast milk through TSA.

• Breast milk, formula, toddler drinks, and baby food are exempt from the 3.4 oz liquid rule

• These items are classified as medically necessary liquids

• Ice packs, freezer packs, and gel packs are allowed—even without milk present

• Your baby does not need to be traveling with you

Tip: Tell the TSA officer you’re carrying breast milk and separate it from other liquids to keep screening smooth.

How much breast milk can you bring on a plane?

TSA does not place a specific volume limit on breast milk. Because breast milk is considered a medically necessary liquid, parents may bring quantities greater than 3.4 ounces in their carry-on bags. Screening procedures may vary depending on the amount and whether the milk is frozen or thawed.

How should you pack breast milk for air travel?

• Pack your pump, milk, and ice packs together in one bag

• Breast pumps are considered medical devices, but airline rules vary

• Always check your airline’s carry-on policy before flying

Pro tip: Bring a hand pump in your carry-on, because delays happen.

Does TSA have to X-Ray or open breast milk?

You have options during screening:

• TSA recommends clear, translucent bottles when possible

• Frozen breast milk usually only requires a visual inspection

• Thawed milk may be tested for explosives—but you may decline

• You can request officers change gloves before handling your milk or pump parts

Are ice packs allowed when flying with breast milk?

• Ice packs and freezer packs are allowed in carry-ons

• They should be frozen solid when screened

• Slushy or melted packs may be subject to liquid restrictions

Reality check: TSA officers have final discretion. Heavy-duty ice packs last longer and reduce hassle.

Can you bring a breast pump on a plane?

Yes. Breast pumps are generally considered medical devices and are allowed in carry-on bags. Airline policies may vary, so check your carrier's guidelines before traveling.

Where can you pump or breastfeed at the airport?

The free Mamava app helps you plan ahead by locating lactation spaces at airports and destinations.

• See photos, reviews, and amenities

• Get pod availability alerts

• Unlock Mamava pods and listen to soothing sounds to support letdown

Think of it as your pumping plan—handled.

What should you do if TSA questions your breast milk?

If screening doesn’t go as it should:

• TSA Cares (online)

• Phone: (855) 787-2227

• Federal Relay: 711

You’re protected by federal law, so don’t hesitate to speak up.

Does TSA PreCheck help when flying with breast milk?

• TSA PreCheck® can shorten lines and reduce stress

• Services like Milk Stork can ship breast milk home if you’d rather not travel with it

Can you fly internationally with breast milk?

International rules vary by country and may change over time. Always check the current customs and aviation guidance for your destination before traveling.

Can you ship breast milk across borders?

• Packing frozen milk in checked luggage is often simplest

• Shipping breast milk into the U.S. is legal for non-commercial use

• DHL and FedEx ship breast milk in many countries, but be sure to confirm locally

Quick FAQs: Flying with breast milk 

Can you bring breast milk through TSA?
Yes. Breast milk, formula, and baby food are allowed in carry-on bags and are exempt from the 3.4-ounce liquid limit.

Does breast milk have to be frozen to fly?
No. Both frozen and fresh breast milk are allowed through TSA screening.

Can TSA open or test breast milk?
TSA may request to test thawed milk, but you can decline. Frozen milk typically only requires visual inspection.

Do you need to travel with your baby to bring breast milk?
No. You may travel with breast milk and pumping supplies even if your baby is not with you.

Are ice packs allowed when flying with breast milk?
Yes. Ice packs, freezer packs, and gel packs are allowed, especially when frozen solid.

Learn more

For additional guidance, visit the CDC’s page on traveling with children.

Bottom line: Breast milk, pumping equipment, and ice packs are allowed through TSA security, and federal protections have made the screening process more consistent for breastfeeding parents. A little preparation before your trip can help make flying with breast milk much less stressfu

Mamava designs solutions to empower breastfeeding and pumping parents on the go, like our freestanding lactation pods, Mamava’s lactation space locator app, and other helpful resources.

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