Any family traveling with a baby will inevitably face the challenge of transporting breastmilk or formula during a trip. Even if you exclusively breastfeed, a stash of milk, whether expressed breastmilk or formula, is one of the most essential travel items for babies. Traveling, particularly by plane, can be very dehydrating. And you don’t want to be empty handed or helpless if you experience an unexpected dip in your supply or your baby needs to nurse more than usual. This is why it’s important to always travel with breastmilk or emergency formula during the baby stage. While the idea of flying with breastmilk may seem daunting, it really isn’t complicated.
However, there are a few things to know about flying with breastmilk, liquid formula, or baby food that will make the process easier.
This guide covers the United States TSA guidelines regarding transporting pumped milk and includes personal tips and advice for flying with breastmilk, flying with formula, or taking baby food through airport security.
Table of Contents
Our experience flying with breastmilk
Our daughter was exclusively breastfed until she was about nine months old. We began traveling with her shortly after she was born. So, on more than one occasion, we had to fly with breast milk. We even flew internationally a couple of times during those first months and brought expressed milk along for the journey. In fact, when our daughter was 6 months old, we flew to Costa Rica for her first international trip.
I was still breastfeeding almost exclusively, but didn’t want to have an infant attached to my body the entire trip. So, we decided to travel with breastmilk that was previously pumped. This was our first experience flying with breastmilk. We didn’t quite know what to expect, but luckily, our family and the breastmilk made it there safely.
In that first year of our daughter’s life, we flew numerous times. We have successfully brought breast milk through airport security and have also flown with liquid formula and baby food without any issues.
What you need to know about flying with breastmilk or flying with liquid formula
Although most things are more challenging when flying with a baby, airlines and airport security agents are more lenient when it comes to the tiniest of travelers. Here are a few things to know about flying with breastmilk or other baby liquids.
TSA liquid limits don’t apply to breastmilk
Although the TSA has a very small limit on the amount of liquids you can bring on a plane. The 3.2 ounce rule does not apply to breastmilk, liquid formula, or baby food. You can actually bring large quantities of these liquids through airport security. Or as the TSA ambiguously puts it “reasonable quantities” of breastmilk are allowed in your carry-on bag. With that said, we have personally brought about a dozen bags of breastmilk, some frozen and some fresh breast milk, through airport security without any problems.
Frozen gel packs are also allowed
Aside from bags of breastmilk or containers of liquid formula, you can also bring gel freezer packs through TSA to keep your liquids cool or frozen. Keep in mind, even in an insulated bag or cooler, ice packs do not stay frozen for more than a few hours.
If you plan to fly with frozen milk, be aware once it thaws completely you must use it within 24 hours. So, I would not recommend bringing too many bags of frozen breast milk on a long flight. Consider giving your baby milk from your frozen stash in the days leading up to your trip. Pump when you would typically feed your little one to have a supply of fresh milk ready for your trip.
Breast pumps are typically allowed in addition to your carry-on and personal item
It is important to note that you can also bring a breast pump through TSA or airport security if you plan to pump while on your trip or vacation. Breast pumps are considered a medical device. So, most airlines will not count them as part of the carry-on and personal item allowance. Be sure to check with your airline before your flight.
However, most will allow mother’s to bring a breast pump in addition to their carry-on and personal item. Many breast pumps are somewhat bulky, which can make them challenging to travel with. However, there are some great travel breast pumps that are compact and easy to clean when on a trip.
You do not need to be traveling with your baby to fly with breastmilk
If you are a mother traveling solo and are still nursing, you will likely have to pump while on your trip to avoid discomfort and keep your milk supply up. No mom wants to dispose of pumped breastmilk. (There is a reason they call it liquid gold!) But luckily, you don’t have to, at least if flying domestically within the United States.
The Transportation Security Administration allows you to fly with a reasonable quality of breastmilk, whether your baby is with you or not. However, that rule does not apply to flying with liquid formula. Although, I don’t know why you would need to fly with formula if your baby is not with you.
Taking breastmilk or liquid formula through airport security
If you plan to travel with breastmilk or liquid formula that needs to be kept cool, keep it in its own small bag rather than placing it in your carry-on luggage. You are allowed to bring a separate bag for breast milk storage or formula in addition to your carry-on bag and personal item.
Keeping the liquids separate makes it easier for screening purposes. The picture below is the bag I use and how I pack it when flying with breastmilk. It is an insulated bag that serves as the perfect breast milk cooler so the milk stays frozen or cold longer.

Let the TSA agent know your traveling with breastmilk or formula
When you arrive at the security checkpoint, tell the TSA agent you are flying with breastmilk or formula. Then, put the bag on the conveyor belt for inspection. It will need to be sent through the X-ray machine. Don’t worry, the X-ray machine does not harm the breastmilk.
If you do not want it to go through the X-ray machine, you will need to inform the agent. You can opt-out of X-raying the milk. In that case, however, your milk or formula will likely be opened and have to go through additional screening.
Security agents will test some of your milk
TSA will inspect, and even open your breastmilk to run tests on it. The process doesn’t take long and doesn’t taint the milk. If traveling with powdered formula instead of liquid you can also bring bottled water through security. You just need to specify that the water is for the baby.
Allow extra time
Always when traveling with a baby or toddler, you should allow yourself extra time at the airport. The additional screening of your milk will take some extra time, although not much, but you may also have extra gear, like a travel stroller that needs to be broken down, or a framed child carrier for a toddler, that will have to be removed and sent through the X-Ray machine.
However, if you plan to wear your baby in a baby carrier while traveling, most of them do not have to be removed to go through security screenings. In fact, babywearing at the airport is one of the best ways to save time and make flying with a baby easier.
Shipping breastmilk
Shipping breastmilk is an alternative to flying with breastmilk, and luckily there are companies that specialize in this. There are several options to easily and effectively ship breast milk. Here are some convenient ways to ship breastmilk if you prefer to do so rather than fly with breastmilk.
- Milk Stork is a company dedicated exclusively to shipping breast milk. They send containers that you can fill and ship overnight.
- FedEx also has a milk shipping program, where they can overnight breastmilk in refrigerated containers. Similar to Milk Stork, you can pre-ordered milk bags to fill up. Then, just drop them off at a FedEx location for overnight delivery.
What you need to know about flying with baby food
Traveling with baby food falls under the same category as traveling with breastmilk or formula, with a few exceptions.
You are allowed to bring enough for the duration of your trip. If you are gone for a week, that is quite a bit of baby food pouches or jars. I recommend the baby food pouches when traveling with a baby and especially when traveling with a toddler. They are much easier to use on-the-go, and many older babies and toddlers can even feed themselves.
Like breastmilk and formula you will have to separate baby food from the rest of your carry-on luggage and declare it with the TSA officer. They will likely inspect it and possibly open one of the containers. If that happens, plan to use that one first since once opened baby food should be used within a day.

Giving Your Baby a Bottle of Breastmilk or Formula on the Plane
If you prefer to give your baby a bottle instead of breastfeeding on a plane, you can request a cup of hot water from the flight attendant upon boarding. Put a bag of cold (not frozen) breast milk in the cup for a few minutes to warm it up, if your baby will not drink it cold.
The water can also be used to mix dry formula if needed. Nursing or bottle feeding during take off and landing will help avoid any ear discomfort for your little one caused by the pressure change when ascending or descending.
Flying internationally with breastmilk, formula or baby food
While we have never personally had a problem flying internationally with breastmilk or baby food, it is important to note that other countries may not be as lenient. Each country may have its own rules and restrictions that apply. Be sure to check with your airline or the international airport from which you will be flying prior to your trip.
Although we have never had an issue, we have read stories of moms having to dump out breastmilk before their flight.
Final thoughts on flying with breastmilk, formula or baby food
Whether you breastfeed, exclusively pump, formula feed or choose a combination of those methods, flying with breastmilk, formula, or even baby food doesn’t have to be difficult. When you travel with breastmilk, baby food, or formula, plan to pack enough for an extra day or so.
Traveling can be unpredictable, flights can get cancelled, you may have an unanticipated long layover, and your trip may end up being longer than expected. So be prepared, and pack accordingly. For this reason, we do not recommend traveling with breast milk in your checked luggage.
Do you have a question or comment about how to travel with breastmilk, formula, or baby food? We’d love to help. Leave us your thoughts in the comments below.
Like it? Pin these tips on flying with breastmilk to save for later!


This post about flying with breastmilk and flying with liquid formula was originally published in December 2015 and was updated in June 2021 for accuracy and current information.
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FAQs
How do you fly with breast milk and formula? ›
Formula, breast milk, toddler drinks, and baby/toddler food (to include puree pouches) in quantities greater than 3.4 ounces or 100 milliliters are allowed in carry-on baggage and do not need to fit within a quart-sized bag.
Can I bring water through TSA for formula? ›Water for babies is allowed in reasonable quantities in carry-on bags. Remove this item from your carry-on bag to be screened separately from the rest of your belongings.
Can you bring baby food pouches through airport security? ›Baby food is allowed in reasonable quantities in carry-on bags. Remove these items from your carry-on bag to be screened separately from the rest of your belongings. Please see traveling with children for more information.
How much water for formula can I take on plane? ›You can pack more than 3.4 ounces of formula — and more than 3.4 ounces of water for babies, such as for mixing formulas powders — in your checked luggage and carry-on. (If you're bringing it with you on the plane, however, the TSA requires you to separate these items from the rest of your gear to be screened.)
Is baby formula milk allowed in hand luggage? ›Absolutely! If you are wondering “How much baby milk can I take on a plane?” – the first important thing to know about traveling with baby formula is that you are exempt from the normal hand baggage liquid rules which limit liquids at 100ml.
Does breast milk cooler count as carry-on? ›Your breast milk cooler does count as a carry-on. storage bags. Your freezer packs and breast milk storage containers may be more than 3 oz. Declare them at security, even when they are empty.
Is diaper bag considered carry-on? ›Dimensions should not exceed 18 x 14 x 8 inches (45 x 35 x 20 cm). These don't count as your personal item or carry-on: Diaper bags (1 per child) Breast pump.
Why does TSA not allow water bottles? ›According to the TSA, limiting containers to what can fit inside a quart-size bag prevents what former TSA administrator Kip Hawley once called a “critical diameter” to blow anything up. The size of the container precludes enough of a potentially explosive liquid from being carried on board.
How can I protect my baby's ears while on a plane? ›Baby ear plugs for flying or earphones are great companions in these situations. First of all, it stops more pressure from entering the tubes. Most pieces have built-in filters that control changes in pressure. Some earplugs are designed only for children.
How do you pack formula on a plane? ›TSA officers may need to test the liquids for explosives or concealed prohibited items. Although not required, to expedite the screening process, it is recommended that formula and breast milk be transported in clear, translucent bottles and not plastic bags or pouches.
How much baby food is allowed on flight? ›
It's always better to be prepared. Formula, breast milk, juice, and baby foods in quantities greater than 3.4 ounces [100mls] are allowed in carry-on baggage and don't need to fit in a quart-sized bag.
What to pack in baby bag for airport? ›For Infants: Pack your standard diaper bag complete with all the items you need on an outing: diapers, changing pad, wipes, diaper cream, plastic bags for soiled clothes, blankets, tissues, pacifiers, teeth toys, extra change of clothes (two, just to be safe), a hat to keep baby's head warm when the plane gets cold, ...
What to do with formula when flying? ›If it's a short trip, pack your prepared formula in a cooler or insulated bag with lots of ice packs. This can be done with prepared powdered, concentrate, or ready-to-feed formulas. Prepared formula can be stored within a cooler bag with ice packs for as long as the temperature inside remains cold enough.
Is it OK to take a bottle of water on the plane? ›Tip #2: Reduce waste and save some money by bringing a reusable water bottle. So you can't bring H20 or any other liquids more than 3.4 oz. (well there are some exceptions) through security, but you CAN bring an empty bottle. Just fill it up on your way to boarding your flight after screening.
Can you bring bottled water for baby on plane? ›You can take expressed breast milk, boiled water to make up feeds or for drinking, formula powder and baby food on board. You are allowed to take powdered baby formula on all flights, but you'll need to show it for screening when you go through.
How do you travel with a baby that needs formula? ›You can get travel-size ready-made formula bottles, or stackable formula towers to pre-portion your powder feeds to make with boiled water at the airport or on the flight. It's also worth remembering some cool boiled water for in between feeds – baby's got to stay hydrated.
Can you take baby milk and food on a plane? ›While there are restrictions on the liquids you can take on a plane, they don't apply to food or milk for your baby. That means you can take what you need for the journey in your hand luggage. This includes: expressed breastmilk, formula, or cow's milk.
How do you pack formula in a diaper bag? ›Bottle & formula (if Using)
Obviously don't have a ready-made bottle sitting in your diaper bag, but if you use powder formula, you can leave a can or packet in there along with a water bottle. You can pre-fill a formula dispenser or keep some powder in a Ziploc bag and stuff it in an empty bottle.
According to the TSA, a breast pump is considered a medical device and does NOT count as one of your carry-on bags, so you should be able to carry your breast pump bag, cooler and purse without a problem.
How do you keep milk cold through TSA? ›Ice packs, freezer packs, frozen gel packs and other accessories required to cool formula, breast milk and juice - regardless of the presence of breast milk - are allowed in carry-on.
Does a breast pump count as a personal item on a plane? ›
They are TSA-friendly and also stay cold longer than gel or water ice packs). Your breast pump is a medical device – meaning it does not count as a carry-on item. Your cooler, however, WILL count as a carry-on item if it is separate.
Can you carry-on a diaper bag for free? ›TSA regulations limit carry ons to one bag and one small, personal item. Most airlines will include diaper bags in your carry on allowance. If your child is traveling for free as an unticketed infant/child, they do not have a baggage allowance.
How many 3 oz bottles can I take on a plane? ›Each passenger may carry liquids, gels and aerosols in travel-size containers that are 3.4 ounces or100 milliliters. Each passenger is limited to one quart-size bag of liquids, gels and aerosols.
How many diapers to bring on flight? ›A common rule of thumb is to pack one diaper per hour of travel time. It doesn't hurt to pack a few extra ones beyond the ones allotted for flight time.
Can I bring a homemade sandwich on a plane? ›Solid food items (not liquids or gels) can be transported in either your carry-on or checked bags. Liquid or gel food items larger than 3.4 oz are not allowed in carry-on bags and should be placed in your checked bags if possible.
How many water bottles can you take through TSA? ›You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes in your carry-on bag and through the checkpoint. These are limited to travel-sized containers that are 3.4 ounces (100 milliliters) or less per item.
Why can't you bring snacks on a plane? ›TSA officers may instruct travelers to separate items from carry-on bags such as foods, powders, and any materials that can clutter bags and obstruct clear images on the X-ray machine.
Where is best to sit on a plane with an infant? ›According to Doug and Sanjay, the back row of the plane is the best place to sit when traveling with a baby for 5 reasons. Over the next shot of the aircraft's galley, they explain that since the back of the plane is near the galley, it's easier to get up and walk around if a fussy baby needs settling.
What time of day is best to fly with baby? ›With young babies, the later in the day, the more fussy they become. I learned the hard way not to book a flight in the 3 to 7 p.m. window. Travel with baby is best done in the morning because babies are better rested, happier and therefore more adaptable.
How do you prepare formula bottles for travel? ›The safest way to transport formula is to take cooled, boiled water and the powdered formula in separate containers. But if you need to transport bottles of formula that are already made up, make sure the formula is icy cold when you leave the house.
Can I wear my baby through airport security? ›
TSA agents will allow you to go through the metal detector while still wearing your baby in a soft-bodied carrier. In fact, in airports that have both a metal detector and a full-body scanner, you will be sent through the metal detector if you are wearing your baby through airport security.
What are the airline rules for babies? ›Infants under 2 years old can travel at no charge in the lap of their parent (any age), or an accompanying adult 16 years or older traveling in the same cabin. We welcome infants as young as 2 days old, but infants less than 7 days old require a 'Passenger Medical' form to be completed before your flight.
What are the airline rules with infants? ›When you travel with a child under 2 years old, you may choose to travel with the child on your lap (infant-in-arms) or travel with your child in an FAA-approved child safety seat. To use a FAA-approved safety seat, you must purchase a ticket for your child so they have a reserved seat.
How can I bring diapers on a plane for free? ›The TSA and major airlines don't ban any common baby gear on planes. Stash a breast pump in your purse or fill a carry-on with nothing but diapers, and TSA agents won't blink an eye.
Can you take a stroller and car seat on a plane? ›You may bring your child's car seat and stroller free of charge as checked baggage. You can check these items with your other baggage, or wait until you reach the gate area. Strollers can be checked at the gate or with your regular checked baggage at the ticket counter.
Can I bring a whole container of formula on a plane? ›Checked Bags: Yes
Powder-like substances greater than 12 oz. / 350 mL must be placed in a separate bin for X-ray screening. They may require additional screening and containers may need to be opened. For your convenience, we encourage you to place non-essential powders greater than 12 oz. in checked bags.
For sterilised baby bottles for travelling consider bringing some disposable sterilising bags. They come complete with a sterilising tablet so you just need to add water. These are ready for use within 15 minutes. The bags are also suitable for use with water abroad and last for 24 hours.
What is not allowed in a carry-on? ›Liquid or gel food items larger than 3.4 oz are not allowed in carry-on bags and should be placed in your checked bags if possible. TSA officers may instruct travelers to separate items from carry-on bags such as foods, powders, and any materials that can clutter bags and obstruct clear images on the X-ray machine.
Can I take empty bottle through security? ›Can you bring an empty water bottle on a plane? Yes, you can bring an empty water bottle on a plane. According to TSA, you can bring an empty water bottle on a plane by packing it in your checked bag or by stowing it in your carry-on.
What are the rules for water bottles in airports? ›The 3-1-1 rule is, of course, that liquids must be in containers that are 3.4 ounces or less; they must be placed inside a single, clear plastic bag; and only one plastic bag is permitted per passenger. If you think it will take a long time to get through security, the freezing method might not work.
Do baby wipes count as liquid on plane? ›
Sanitizing Wipes: Wet wipes, in any quantity, can be carried on. This includes baby wipes! Disinfectant sprays: You are allowed to have sprays in your carry-on bag as long as they do not exceed 3.4 oz. Pack larger sizes in your checked luggage.
Do airlines provide bassinets for infants? ›On any given flight, there is only a limited number of bassinets available. Bassinets are often free. But, sometimes you must pay extra to secure the bulkhead. Prior to booking, familiarize yourself with the policies of the airlines you will likely fly on.
How do you take a stroller through TSA? ›The TSA has a few additional pieces of advice when it comes to traveling with a child who needs a stroller. Strollers that aren't being checked (or are being checked at the gate) will need to be screened by the X-ray, and you can carry your child when going through security.
How do you pack formula milk for travel? ›The safest way to transport formula is to take cooled, boiled water and the powdered formula in separate containers. But if you need to transport bottles of formula that are already made up, make sure the formula is icy cold when you leave the house.
Can I bring powdered milk on a plane? ›Powder-like substances over 12 oz. or 350mL in carry-on that cannot be resolved at the central checkpoint will not be allowed onto the cabin of the aircraft and will be disposed of. For your convenience, place powders in your checked bag.
Can you take a tin of formula on a plane? ›You are allowed to take powdered baby formula on all flights, but you'll need to show it for screening when you go through. Baby products, prescription and non-prescription medicines (including special dietary products) and medical items required during a flight are exempt from the rules.
How do you travel with breast milk in a bottle? ›Transporting Milk
You can carry freshly expressed milk in an insulated cooler bag with frozen ice packs for up to 24 hours. After arriving at your destination, use the milk right away, store it in the refrigerator, or freeze it.
It is important to use breast milk-specific bags because other storage bags like Ziplocs are not sterile. Many breast pump brands or bottle brands make a version of a breast milk storage bag.
What happens if you freeze breast milk with air in the bag? ›Breast Milk Storage Bag Air Bubbles: Safe Or Not
The air inside the breast milk storage bag causes a freezer burn on the milk. After you defrost it, you're going to feed it to your child. It causes stomach aches in the little one. You don't want to see your baby suffer troubles like this.
To do this, you could use a travel bottle warmer. These come in various designs, including one that plugs into your car's cigarette lighter. Or take a flask of hot water and a large plastic container. Then just put the hot water from the flask into a container and dip the bottle in, with its cap on, to warm it.
How many baby bottles to travel with? ›
How many bottles should you pack whilst travelling? You should pack as many bottles as your baby uses in 24 hours, plus one or two spares. If you do your washing and sterilizing in the evening or overnight, you'll always have enough bottles for the following day.
How do you travel with formula in a diaper bag? ›Bottle & formula (if Using)
Obviously don't have a ready-made bottle sitting in your diaper bag, but if you use powder formula, you can leave a can or packet in there along with a water bottle. You can pre-fill a formula dispenser or keep some powder in a Ziploc bag and stuff it in an empty bottle.
Milk over 100ml IS allowed in hand luggage
That means two things– your holiday might be the first time you sample your child's warm milk.
Sanitizing Wipes: Wet wipes, in any quantity, can be carried on. This includes baby wipes! Disinfectant sprays: You are allowed to have sprays in your carry-on bag as long as they do not exceed 3.4 oz. Pack larger sizes in your checked luggage.
How much baby powder can you bring on a plane? ›Powder-like substances greater than 12 oz. / 350 mL must be placed in a separate bin for X-ray screening. They may require additional screening and containers may need to be opened. For your convenience, we encourage you to place non-essential powders greater than 12 oz.