Travelling with a baby is not travelling with a small person. It is travelling with a complete life-support system that has to work in an airport queue, on a plane with no counter space, and in a hotel room with no fridge.
The other difference is that the failure modes are immediate. Forget a jumper and you are cold. Run out of nappies over the Atlantic and there is no shop, no substitute, and three hours left.
This guide is specifically about infants — under two, pre-walking or barely walking, still on milk. If you are packing for a mixed-age family, our family vacation packing list covers the bag-per-child system and older children. This one goes deep on the baby.
1. The Short Answer
| Category | What matters |
|---|---|
| Feeding | Formula or expressed milk, bottles, cold-water sterilising tablets |
| Nappies | 1 per hour of travel, then doubled |
| Changes | 2 outfits per day, plus 2 spare in the cabin bag |
| Sleep | Familiar sleep sack, blackout blind, white noise |
| Flying | Bassinet booked early, or a seat with an approved car seat |
| Transport | Carrier for airports, stroller gate-checked |
| Health | Infant paracetamol dosed by weight, thermometer, nappy cream |
| Documents | Own passport, consent letter if travelling solo |
The one rule: everything essential goes in the bag on your body. Cabin bags get gate-checked on full flights without warning, and a nappy bag in the hold is useless.
2. The Liquid Rule Exemption
Start here, because most parents do not know it and it changes what you can carry.
Baby milk, formula, water for making up feeds, and baby food are exempt from the 100ml liquid limit when you are travelling with an infant. You can carry what you reasonably need for the journey, in containers well over 100ml.
How it works in practice:
- Take them out of your bag before you reach the scanner and tell the officer
- They are screened separately, sometimes by opening or testing a container
- You do not need the baby to be physically present at the machine, but you do need to be travelling with them
- Ready-made cartons are the smoothest option through security — nothing to mix, nothing to explain
Rules vary a little by country, so check your departure airport if you are connecting through somewhere unfamiliar. But the exemption itself applies nearly everywhere, and it is the difference between managing feeds properly and rationing.
Bring more than the flight needs. Delays happen, and airside shops rarely stock formula.
3. Feeding on the Move
If formula feeding:
- Pre-measured powder dispensers, one compartment per feed — measuring powder on a tray table is genuinely difficult
- Or ready-made cartons for travel days: heavier, but no water, no mixing, no sterilised bottle required
- Two bottles minimum. One is always dirty
- Bottled water for making up feeds — tap water abroad may not be suitable
- A small insulated bag if you are carrying made-up feeds
If breastfeeding, you are carrying less, but still consider a cover if you want one, breast pads, and a pump plus storage bags if you are expressing. Pumps are medical equipment and generally do not count against your cabin baggage allowance — worth confirming with your airline.
Sterilising away from home. Cold-water sterilising tablets are the answer. Drop a tablet into any clean container of cold water, submerge the bottles, leave them. No power, no boiling, no equipment, works in a hotel sink. Microwave steriliser bags are a good backup where there is a microwave. An electric steriliser is not worth the suitcase space.
If weaning, add pouches for travel days, a soft-tipped spoon, bibs, and a couple of snacks. Pouches are exempt from the liquid rule on the same basis as milk.
4. The Nappy Maths
The formula that works: one nappy per hour of total door-to-door travel, then double it.
A six-hour flight is not six hours. It is two hours before departure, six in the air, an hour to clear the airport, and a transfer — a ten-hour day. So twelve to sixteen nappies in the cabin bag.
That feels absurd until a delay stretches it. Nappies weigh almost nothing; the only cost is volume, and running out has no solution mid-flight.
Also carry:
- Wipes, more than you think, in an easy-open pack
- A travel changing mat — aircraft changing tables are small, cold, and shared
- Nappy sacks for disposal
- Nappy rash cream. Long travel days in one nappy cause flare-ups
- Two spare outfits for the baby and one spare top for you. If a nappy fails on a plane, it lands on whoever is holding the baby
Changing on a plane: most aircraft have a fold-down table in one or two lavatories, usually near the back. Not every lavatory has one — ask cabin crew rather than working through them all with a baby on your hip.
5. Flying: Bassinet, Lap, or Seat
Lap infant. Under two, your baby normally travels on your lap at a reduced fare with a loop belt attached to yours. Cheapest, and fine on short flights.
Bassinet. Attaches to the bulkhead wall on long-haul aircraft, and it transforms an overnight flight if your baby will sleep in one.
- Book as early as you possibly can. There are typically only a handful per aircraft and they cannot be reserved through normal seat selection — you usually have to phone the airline
- They exist only in bulkhead rows
- They carry weight and length limits, commonly around 11kg, and crew will decline if your baby exceeds them
- Your baby must be lifted out for turbulence and for take-off and landing
Buying a seat. More expensive but safer and more comfortable on long flights, and it lets you use an approved car seat that your baby is already used to sleeping in. Check the seat is airline-approved and fits the aircraft width.
Ear pressure on descent. Babies cannot equalise deliberately. Feeding — bottle, breast, or a dummy — during descent genuinely works, because swallowing does the job for them. Time a feed for the descent rather than sleeping through it, even if that means waking them.
6. Stroller, Carrier, and Car Seat
A carrier beats a stroller in airports. Hands free, through security, up stairs, onto a shuttle bus. If you take one thing for transit, take the carrier.
Strollers can almost always be gate-checked — you keep it right up to boarding and collect it at the aircraft door or on the carousel. It usually does not count against your baggage allowance. Compact travel buggies survive handling better than full-size prams.
Car seats:
- Most airlines carry a car seat and a stroller free of charge, in addition to your normal allowance
- Do not assume a rental car seat will be safe, clean, or correctly fitted. Standards vary widely, and rental companies will rarely fit it for you
- Taxi rules differ by country — many allow an infant without a seat, which does not make it a good idea
- Use a padded travel bag if the seat is expensive; handling is rough
7. Sleep Away From Home
The most common reason a trip with a baby goes badly is sleep, and sleep is mostly about environment.
- Blackout blind. Portable stick-on ones cost very little and make an unfamiliar room usable for daytime naps. Genuinely one of the highest-value items in the bag
- White noise. A small machine or an app. Familiar sound covers unfamiliar hotel corridors
- Their own sleep sack or sheet. Familiar smell matters more than familiar furniture
- Travel cot — but check with your accommodation first. Most family-friendly hotels and rentals provide one free, and carrying a cot you did not need is a large waste of space
- A comfort item, and if possible a duplicate
Expect the first night to be poor regardless. It usually is, and it usually resolves by the second.
8. Health and Medication
- Infant paracetamol, and ibuprofen if age-appropriate, dosed by weight rather than age
- Write down your baby's current weight before you travel. It is the number you will need at 2 a.m. and the one you will not remember
- Digital thermometer
- Nappy rash cream, teething gel or granules
- Saline drops for blocked noses — dry cabin air is hard on small airways
- Rehydration sachets appropriate for infants
- Any prescription medication in original labelled packaging, with a copy of the prescription
- High-factor sun cream formulated for babies, and a sun hat. Babies under six months should be kept out of direct sun entirely
Check whether your destination restricts any of your medication. Some countries control substances that are routine elsewhere — our Dubai packing guide covers a good example of how strict this can get.
9. Documents
- Your baby needs their own passport, from birth. There is no adding them to yours
- Child passports expire faster than adult ones, typically five years, and many destinations require six months validity beyond your travel dates
- A consent letter if you are travelling without the other parent. Frequently required, and impossible to produce at the airport
- Birth certificate if your surname differs from your baby's, which is regularly questioned
- Visas — infants need them in their own right
- Travel insurance listing the baby, with the policy number saved offline
- Photograph everything and store it offline
10. What to Buy There Instead
Baby gear is heavy and most of it is available worldwide.
Buy on arrival: nappies, wipes, bath products, most snacks. Bring enough for the journey plus the first day, then restock.
Bring from home: your specific formula brand (availability and formulation vary by country), all prescription medication, comfort items, and anything your baby is particular about.
Leave behind: an electric steriliser, a bottle warmer, a full-size pram for a city trip, more toys than two or three, and a travel cot before you have checked whether one is provided.
11. Building the List with PackPilot
Baby packing is where a generic checklist fails hardest, because almost every quantity is a calculation rather than a fixed number — nappies from journey length, feeds from the schedule, outfits from age.
In PackPilot, add your baby as a traveller with their age and set the trip length. Zippy scales those quantities from the actual journey instead of handing you one number to divide up. Change a six-hour flight to a twelve-hour one and the nappy and feed counts move with it.
Bag assignment is the part that matters most here. The nappy bag you carry on your body and the suitcase in the hold serve completely different purposes, and the whole trip depends on the right things being in the first one. Assign items to each and you can check it before you leave for the airport rather than discovering the gap at the gate.
And because everything works fully offline, the list is there on the plane and in accommodation with no signal — which is precisely when you need to confirm you packed the sterilising tablets.
Related Travel Guides
- Family Vacation Packing List: What to Pack When Travelling With Kids
- Beach Vacation Packing List: What to Pack for a Tropical Trip
- The Essential Packing Checklist for Long-Haul Flights and International Travel
- Expert Travel Packing Guides & Checklists
- PackPilot AI Travel Checklist App
Frequently Asked Questions
Yes, and this is the exemption most parents do not know about. Formula, breast milk, water for making up feeds, and baby food are generally allowed through security in quantities above the usual 100ml liquid limit when you are travelling with an infant. They are screened separately, so take them out of your bag and tell the officer before you go through. Rules vary slightly by country, so check your departure airport, but the exemption itself is near-universal.
Roughly one per hour of total door-to-door travel time, then double it. A six-hour flight with airport time either side realistically means twelve to sixteen. It sounds excessive until a delay turns a six-hour day into a ten-hour one. Nappies are bulky but weightless, and running out mid-flight has no solution at 35,000 feet.
Cold-water sterilising tablets are the travel-friendly method — drop a tablet into any clean container of cold water, submerge the bottles, and leave them. No power, no boiling, no equipment. Microwave steriliser bags are a good backup if your accommodation has a microwave. Both pack flat, unlike an electric steriliser, which is not worth the suitcase space.
Under two, no. Infants normally travel as a lap passenger on a reduced fare with a loop belt that attaches to yours. Buying a separate seat and using an approved car seat is safer and far more comfortable on long flights, but it is not required. If you want a bassinet instead, book it as early as possible — they exist only in bulkhead rows, numbers are very limited, and they carry weight and length limits.
Nappies, wipes, and most baby toiletries are available almost everywhere and are usually cheaper than paying to fly them. What you should not count on finding is your specific formula brand, any prescription medication, and familiar comfort items. Pack those. Bring enough nappies for the journey plus the first day, then buy the rest on arrival.
Yes. Add your baby as a traveller with their age, set the trip length, and Zippy scales the quantities — nappies, feeds, changes of clothes — from the journey rather than giving you a fixed list. Bag assignment separates the nappy bag you carry on from the checked luggage, which is the distinction that matters when a bag gets gate-checked.