TSA Rules · Updated October 4, 2026
Can You Bring Baby Formula on a Plane?
Yes. Baby formula is a medically necessary liquid—it is allowed in carry-on in quantities greater than 3.4oz, with or without a child traveling. Just declare it at the checkpoint, and powder formula has no limit at all.
The rules
Carry-on essentials
Move through the airport fast and keep everything in its place from gate to gate.
Every bottle, one look
| Formula type | Carry-on | Checked | The rule |
|---|---|---|---|
| Prepared liquid formula | Declare | Yes | Allowed over 3.4oz; declare for screening |
| Powdered formula | Yes | Yes | No quantity limit; over 12oz may get a check |
| Ready-to-feed bottles | Declare | Yes | Reasonable quantities allowed |
| Ice packs to keep it cold | Yes | Yes | Allowed even if not frozen solid |
| Water to mix formula | Declare | Yes | Formula water is exempt when declared |
The official word
Straight from TSA
“Formula, breast milk, and juice for infants are allowed in reasonable quantities in excess of 3.4 ounces. You do not need to be traveling with a child to bring them.”
TSA, What Can I Bring (July 2026)
Before the checkpoint
Three calls that matter
No. Formula is exempt from the 3-1-1 limit. Tell the officer you have it, and it is screened separately.
Carry-on, within reach. Pack more than you think you need in case of delays, plus ice packs to keep it cool.
You can bring formula and the water to mix it even if your baby is not with you, such as when flying to meet them.
FAQ
Quick answers
Can you bring baby formula on a plane?
Do you have to be traveling with a baby to bring formula?
Is powdered formula limited?
Can you bring water to mix formula?
Sources checked July 2026: TSA, What Can I Bring. Rules change; confirm before you fly.