TSA Breast Milk Rules Explained: A Stress-Free Guide (2025)

TSA Breast Milk Rules: The Basics

If you’re flying with breast milk, the good news is: TSA allows it, and you have rights. Here’s a quick, no-stress overview of what to expect at airport security.

1. Breast Milk Is Exempt from the 3.4 oz Liquid Rule

You can bring more than 3.4 oz of breast milk through TSA security. There’s no limit - bring as much as you need for your trip, even if your baby isn’t traveling with you.

2. You Can Travel with Fresh, Frozen, or Thawed Milk

TSA allows all forms of breast milk - fresh, frozen, or partially thawed. Just be prepared for them to be screened separately. 

Note: sometimes TSA will also require partially thawed breast milk to be able to test it - it doesn't always happen and depends on the airport. Be prepared for the possibility of them requiring enough liquid to use a sanitary test strip to test it. You can ask them to pour a small sample into a separate container so your breast milk is not contaminated.

3. Coolers, Ice Packs, and Gel Packs Are Allowed

You can bring ice packs, gel packs, freezer packs, and insulated coolers (like the Milk Cubby by Milk Stork) to keep milk cold. These are also exempt from the 3.4 oz rule when used for breast milk storage.

4. Declare Your Milk at the Security Checkpoint

Let TSA officers know you’re traveling with breast milk. Your milk and cooling supplies will be screened separately, and you can request hand inspection instead of X-ray if you prefer.

5. You Can Refuse X-ray Screening of Your Milk

If you’re not comfortable with X-ray or other screening methods, you have the right to request alternative inspection methods (usually visual or swab testing). TSA officers are trained to accommodate breastfeeding parents.

6. TSA Cares Can Help Before Your Trip

Need extra support? Contact TSA Cares, a helpline for travelers with medical conditions - including breastfeeding moms. They can assist with accommodations and smooth out your security experience.

TSA Cares Helpline: 1-866-289-9673

Packing Tips for TSA Screening

When it comes to flying with breast milk, how you pack can make all the difference. Here’s how to get through TSA smoothly - with your milk safe and your sanity intact.

1. Pack Your Milk for Easy Access

TSA requires that breast milk be screened separately from the rest of your liquids. Pack your milk in a cooler or insulated bag that’s easy to open and remove when going through security. The Milk Cubby by Milk Stork was built for this, 

Pro Tip: Use a separate Ziploc or tote just for your milk and pump parts - it speeds up screening and keeps things organized.

2. Use TSA-Friendly Containers

Store milk in breast milk storage bags or bottles with secure, leak-proof lids. Labeling is optional, but it can help avoid confusion during screening.

3. Coolers and Ice Packs: No Problem

You can bring ice packs, gel packs, or freezer packs - they’re TSA-approved when used to keep breast milk cold. Even if they’re partially melted or slushy, they’re still allowed.

4. Bring Printed TSA Guidelines

Not all TSA agents are familiar with the breast milk rules. Print TSA’s official breast milk guidelines and keep them handy - it can save time and prevent confusion.

Download TSA Breast Milk Guidelines:

Bonus: What to Pack for Travel Pumping

• Extra storage bags or bottles
• Battery-powered or manual pump
• Sanitizing wipes & Ziplocs for parts
• Hands-free pumping bra
• Milk Stork’s Pump & Check kit or Milk Cubby for carrying milk on the go

Want to skip the TSA hassle altogether?

Milk Stork lets you ship your milk home overnight - no ice packs, no coolers, no stress.

Learn More About Milk Stork

You Have Rights: TSA Guidelines Support You

• Breast milk is a medically necessary liquid and exempt from standard limits.

• You’re allowed as much milk as needed, along with cooling items.

• You can request a supervisor if you encounter issues.

• Print TSA’s official breast milk guidelines to bring with you - it’s your best backup.