Good news for breastfeeding mamas: The TSA's 3.4-ounce-limit, which applies to most liquids stashed in your carry-on, doesn’t apply to breast milk. (That said, if you’re bringing more than 3.4 ounces, let a TSA agent know in advance; it’ll likely need to be screened separately.)
These breast milk storage bags from Lansinoh can lay flat or be stored upright, which will save space — and spare yourself from having to wash too many bottles on the go. The bags also come pre-sterilized and reinforced with a double seal to prevent leakage. Breast milk can also be stashed in your checked bags.