Bringing Breast Milk and Formula Through Airport Security: What Every Traveling Mom Needs to Know

Holiday travel (or any travel) can feel overwhelming when you’re a mom — especially when you’re carrying valuable breastmilk through TSA. The good news? Breast milk, formula, toddler drinks, and baby foods are ALL allowed through airport security, even if they exceed the usual 3.4-ounce rule.

Here’s your complete guide to taking breast milk, formula, and baby food through airport security with confidence — no stress, no surprises.

Are Breast Milk and Formula Allowed Through TSA?

Yes! According to the Transportation Security Administration (TSA),
breast milk, formula, toddler drinks, and baby/toddler foods (including puree pouches) are all considered medically necessary liquids.

Here's what you need to know: 

•  They CAN exceed 3.4 ounces.

• You CAN pack them in your carry-on.

•  They do NOT need to fit in a quart-sized bag.

• Your baby does NOT need to be traveling with you.

This rule applies whether you are bringing 4 ounces or more. TSA understands that parents need access to these liquids during travel — and they must be treated differently than other carry-on liquids.

How to Prepare Your Breast Milk or Formula Before You Reach Security

A little prep goes a long way in keeping the screening process smooth.

✔️ Use clear, translucent bottles or containers

Avoid storing breast milk or formula in plastic bags or pouches if possible.
Why? According to the TSA, Bottle Liquid Scanners cannot always scan opaque or flexible containers. If the scanner can’t read the pouch, TSA may ask you to open it for testing.

✔️ Keep liquids easily accessible

You will need to remove the breast milk, formula, toddler drinks, and baby foods from your bag at security.

✔️ Separate them before you get to the bins

This helps TSA agents quickly identify and move them to the proper screening area.

What to Say When You Reach the Front of the TSA Line

When you approach the TSA officer, simply let them know that you are traveling with breast milk/formula/toddler drinks/baby food, and some containers are over 3.4 ounces. This lets them know to follow the correct protocol. You’ll place these items in a separate bin so TSA can conduct additional screening.

How TSA Screens Breast Milk and Formula

Here’s what to expect during screening:

• TSA will never ask to test the liquid by inserting anything into it.

• They may use non-invasive bottle scanners or swab the outside of the container.

• If a pouch can’t be scanned, you may be asked to open it — which is why clear bottles are recommended.

Remember: You can request alternate screening if you prefer not to open a container. 

Does Your Baby Need To Be With You To Bring Milk? 

No. This is one of the most common myths. TSA does not require your baby to be physically present. You can travel alone and still bring breast milk. 

This is especially helpful for:

• Moms traveling for work

• Parents delivering milk to another caregiver

• Moms on solo trips or pumping while they are gone.

Tips for Stress-Free Travel With Breast Milk

Here are a few extra mom-tested tips:

• Pack a small soft cooler for easy access.

• Know your airline’s in-flight storage rules (most can chill items but won’t freeze them).

• Freeze milk flat before traveling for easier packing.

• Bring extra zip bags for ice from airport vendors if you need to refresh your cooler.

• Wear breastfeeding-friendly clothing for convenience.

Traveling with breast milk or formula doesn’t need to be stressful. TSA’s rules are designed to keep your feeding essentials accessible, safe, and allowed — even when you’re carrying more than 3.4 ounces.

With clear containers, a quick heads-up to agents, and a little prep, you can get through security smoothly and focus on what matters: your trip, your baby, and your peace of mind.

If you need nursing-friendly travel outfits for pumping on the go, cozy airport style, or hands-free feeding, check out these options designed for moms on the go.