Travel Flying with breast milk or formula? Don’t worry about liquid limits. Here’s what to know. June 23, 2023June 26, 2023Zach Wichter, USA TODAYComments Off on Flying with breast milk or formula? Don’t worry about liquid limits. Here’s what to know. The Transportation Security Administration will allow you to fly with any amount of breast milk or baby formula so long as it fits in your carry-on.