Yes, infant formula can go through security, and larger amounts get separate screening instead of the usual liquid-size cap.
If youβre flying with a can of formula, the answer is yes. TSA allows infant formula through the checkpoint, including a sealed can of powder, a ready-to-feed bottle, and a travel dispenser.
The catch is that powder formula and liquid formula do not move through screening the same way. Powder is treated like a powder. Liquid formula is treated like a medically necessary liquid. That split affects how you pack, what you pull from your bag, and how much extra time you may need at security.
Bringing A Can Of Formula Through TSA Without Trouble
TSA allows infant formula in carry-on bags. On TSAβs baby formula page, the agency says formula in amounts over 3.4 ounces is allowed in carry-on baggage and does not need to fit inside a quart-size liquids bag.
That means you can keep formula with you in the cabin instead of packing the full supply in checked luggage. TSA also says your child does not need to be with you for formula to be allowed. The officer at the checkpoint still makes the final call, so neat packing still matters.
What Counts As Formula At Screening
These are the forms travelers usually carry without trouble:
- Powder formula in the original can
- Single-serve powder packets
- Pre-measured powder in a formula dispenser
- Ready-to-feed liquid formula bottles
- Concentrated liquid formula
- Water packed with baby feeding supplies
- Cooling packs used with liquid formula
Liquid formula is where the standard 3-1-1 liquids rule bends. Formula is treated as a medically necessary liquid, so it can exceed the normal size cap. Tell the officer about it right away and be ready to place it in a separate bin.
Powder formula is often easier. You are not trying to fit a can into a quart bag. Still, a large, dense container of powder can draw extra screening, so it helps to keep the can near the top of your bag and in normal retail packaging.
Why The Original Can Helps
A sealed can gives the officer a clear label and normal packaging. It also keeps the scoop, mixing directions, and lot details in one place once you land. Loose or unlabeled powder can still pass, though it is more likely to get a second look.
What Screening Usually Looks Like At The Checkpoint
Most of the time, formula screening is a short pause, a separate bin, and an extra check. Trouble starts when formula is buried in the bag or left unmentioned until a carry-on gets pulled aside.
A smoother routine looks like this:
- Pack formula where you can reach it fast.
- Tell the officer you are carrying infant formula before the bag enters the scanner.
- Place liquid formula, cooling packs, and baby feeding liquids in a separate bin when asked.
- Wait until screening is done before you start repacking.
- Check the area so no bottle cap, scoop, or packet gets left behind.
TSA says officers may test liquids for explosives or concealed prohibited items. You can also ask for private screening if you want more privacy during the check.
| Formula Item | Carry-On Status | What To Expect |
|---|---|---|
| Sealed powder can | Allowed | Usually straightforward; large amounts of powder can get extra screening |
| Single-serve powder sticks | Allowed | Easy to pack and quick to separate if asked |
| Ready-to-feed liquid bottle | Allowed | Can exceed 3.4 ounces; declare it for separate screening |
| Concentrated liquid formula | Allowed | Handled like other medically necessary liquid formula |
| Empty baby bottle | Allowed | Usually simple unless packed with other dense items |
| Water for mixing | Allowed with baby feeding supplies | Can get separate screening if over the normal liquid size |
| Ice pack or gel pack | Allowed with formula | Pack it with feeding items and present it when asked |
| Loose powder in unlabeled bag | Usually allowed | More likely to get a closer check than a sealed can |
Powder Vs Liquid Formula Rules
People hear βformula is allowed,β then assume every kind of formula moves through the checkpoint the same way. It doesnβt.
Powder formula is often the easier item. You can pack the can in your carry-on or checked bag. The snag comes with larger powder containers. TSA says on its powder policy page that powder-like substances over 12 ounces or 350 mL in carry-on bags may need separate screening and the container may need to be opened. That does not mean formula is banned. It means a sealed can may still get a closer check.
Liquid formula gets a carveout from the standard liquid cap. It can go in your carry-on in reasonable amounts for the trip, even when it is above 3.4 ounces. That is the part many travelers miss, then end up tossing feeding supplies they were allowed to keep.
Use this simple split:
- Powder formula: easy to pack, stable at room temperature, may get extra screening if the container is large
- Liquid formula: allowed over the standard liquid limit, should be declared, often screened apart from the rest of the bag
- Mixed bottles: allowed, though they can draw the same extra checks as other baby liquids
| Packing Choice | Best Spot | Why It Works |
|---|---|---|
| One sealed powder can | Carry-on | Keeps feeding supplies with you if checked bags are late |
| Backup powder supply | Checked bag | Good buffer for longer trips |
| Day-of-travel liquid feeds | Carry-on | Covers delays, taxi time, and gate waits |
| Cooling packs with ready-to-feed bottles | Carry-on | Keeps all feeding items together for screening |
| Pre-measured feed portions | Carry-on | Makes layovers and late arrivals easier |
Simple Packing Moves That Make Travel Easier
A good packing setup is easy to pull out, easy to explain, and easy to repack. That matters when youβre handling a stroller, a tired child, and a security belt that keeps rolling.
Pack Formula In One Zone
Put cans, bottles, water, and cooling packs in one pouch or one side of the bag. When the officer asks about baby feeding items, you can grab them in one motion. That alone cuts checkpoint stress.
Bring More Than One Feed
Flights slip. Gates change. Taxi time drags. Pack enough formula for delays, not just the flight time printed on the ticket. A small buffer can save you from a frantic airport store search.
Use Clear, Normal Packaging
Sealed bottles, branded cans, and neat travel dispensers are easier to sort than mystery containers. TSA says liquid formula in clear bottles is easier to screen than items packed in pouches, so plain packaging helps when you have a choice.
Leave Extra Time
Baby supplies can add a few minutes to screening even when everything is packed well. It is better to have slack after security than to sweat through the line because one bottle needed another check.
When Checked Bags Make Sense
You can put formula in checked luggage too. For long trips, that is a smart place for backup cans and refill stock. The safer plan is often a split plan: keep enough formula with you for the flight day, then pack extras in the checked suitcase.
That way, you still have what you need if the flight runs late, yet you are not carrying the full trip supply through the airport. If you do keep a full-sized powder can in your cabin bag, place it near the top so it can be screened without a full bag search.
What Most Travelers Get Wrong
The biggest mistake is treating formula like an ordinary drink. Liquid formula has a different rule, so declare it instead of hoping it slips through unnoticed. The next mistake is packing formula too deep in the bag. Once a search starts, every extra layer slows things down.
Another common misstep is carrying only one feeding option. A delayed flight can wipe out a tight plan fast. Bring enough for the airport, the flight, and extra time after landing. That margin can make the day feel easier.
So yes, you can bring a can of formula through TSA. Pack it where you can reach it, tell the officer about any liquid formula right away, and leave a little room in your schedule for screening. That is usually all it takes.
References & Sources
- Transportation Security Administration.βBaby Formula.βStates that formula is allowed in carry-on bags, including amounts over 3.4 ounces, and gives the separate screening steps.
- Transportation Security Administration.βLiquids, Aerosols, and Gels Rule.βShows the standard liquid rule that baby formula does not have to follow in the usual way.
- Transportation Security Administration.βWhat Is The Policy On Powders? Are They Allowed?βExplains the extra screening rule for powder-like substances over 12 ounces or 350 mL in carry-on bags.