Travel Packing Checklist by Age

Build the bag around two questions

Before you fold a single onesie, answer two questions: what does my child need in the next four hours, and what would be hard to buy if a bag got lost? The first question fills your carry-on or diaper bag. The second decides what should never go in checked luggage. Formula, a few days of any prescription medication, one full change of clothes per child, and your child's comfort item belong with you, not in the cargo hold.

Then pack by category rather than by day. A pile of "feeding," a pile of "sleep," a pile of "diapering," and so on is faster to check and faster to repack than outfit-by-outfit. The table below is organized the same way, split across four age bands so you can scan straight to your child's stage and skip the rest.

Packing list by age and category

A starting checklist. Adjust quantities for trip length and whether you can buy or wash at the destination.

Category	Newborn (0-3 mo)	Infant (4-11 mo)	Toddler (1-3 yr)	Preschooler (3-5 yr)
Feeding	Formula or pumping kit, bottles, burp cloths, nursing cover	Bottles, formula or pouches, first solids, bibs, spoons	Sippy or straw cup, utensils, mess mat, familiar snacks	Spill-proof cup, snacks, small utensils, gum or chews for ears
Sleep	Travel crib or bassinet, 2-3 fitted sheets, swaddles, white-noise app	Travel crib, sleep sack, 2 sheets, white-noise app	Travel crib or rail, sleep sack or small blanket, lovey	Travel cot or bed rail, familiar pillowcase, night-light
Diapering	Diapers (1 per 2-3 hrs plus extra), wipes, cream, changing pad, bags	Diapers, wipes, cream, changing pad, disposal bags	Diapers or pull-ups, wipes, a few potty supplies if training	Pull-ups if needed, wipes, spare underwear, travel potty seat
Health / meds	Infant acetaminophen, thermometer, saline drops, nail file, any Rx	Infant pain/fever reducer, teething relief, thermometer, Rx	Child pain/fever reducer, bandages, thermometer, Rx	Child pain/fever reducer, bandages, motion-sickness plan, Rx
Clothing	6-8 onesies, sleepers, hat, socks, weather layer, 2 swaddle blankets	Day outfits, sleepers, hat, layers, sun hat, light jacket	Outfits plus extras, pajamas, hat, jacket, closed shoes	Outfits, pajamas, hat, jacket, shoes, swimwear if needed
Entertainment	Lovey, a couple of high-contrast toys, pacifiers	2-3 quiet toys, teether, board book, pacifiers	Sticker book, small toys, board books, snacks as a backup	Activity book, crayons, small toys, downloaded shows on a device

Carry-on vs checked

Treat your carry-on as the bag that has to get you through a delayed or canceled flight. Inside it: enough diapers and wipes for the travel day plus a buffer, one full change of clothes per child (and a spare shirt for you), formula or food, all medications, the comfort item, and a phone or tablet with shows already downloaded. Checked luggage holds the bulkier, replaceable items: the rest of the clothing, extra diapers, toiletries, and the travel crib if it does not fit a gate-check.

Strollers and car seats are usually gate-checked for free on flights and screened by X-ray at security. The U.S. Federal Aviation Administration says the safest place for a child on a plane is in an FAA-approved child restraint in their own seat, not on a lap, so if you have bought a seat, bring the car seat aboard. Look for the label "This restraint is certified for use in motor vehicles and aircraft." For older kids who have outgrown the lap-child stage, the FAA-certified CARES harness is an approved alternative for children roughly 22 to 44 pounds and up to 40 inches tall.

TSA rules for baby items

The U.S. Transportation Security Administration exempts baby-feeding liquids from the usual carry-on limit:

• Formula, breast milk, toddler drinks, and baby or toddler food (including puree pouches) are allowed in carry-on in quantities greater than 3.4 oz / 100 ml. They do not have to fit in the quart-sized bag.
• Tell the TSA officer at the start of screening that you are carrying these, and take them out for separate screening.
• Ice packs, freezer packs, and gel packs to keep milk or food cold are allowed, even if no breast milk is present, along with liquid-filled teethers.
• Your child does not need to be traveling with you to bring breast milk and cooling accessories.
• Everything else liquid still follows 3-1-1: containers of 3.4 oz / 100 ml or less, together in one quart-sized bag. Larger toiletries go in checked luggage.
• Children 12 and under can leave their shoes, light jackets, and headwear on during screening.

A travel health kit worth bringing

The CDC recommends a personal travel health kit. For families, include:

• Age-appropriate pain and fever reducer (infant or children's acetaminophen or ibuprofen) with a syringe or dosing cup
• Oral rehydration salts for diarrhea or vomiting
• A digital thermometer
• Adhesive bandages in several sizes plus any antiseptic
• Antihistamine, insect repellent, and sunscreen of SPF 30 or higher
• Enough of every prescription medication for the full trip plus a few spare days, in original labeled containers

Reflects TSA traveling-with-children and liquids rules, FAA child-restraint guidance, and CDC travel-health-kit guidance, 2024-2026.

Related questions

Can I bring more than 3.4 oz of formula or breast milk through airport security?

Yes. TSA exempts formula, breast milk, toddler drinks, and baby food in reasonable quantities over 3.4 oz / 100 ml from the liquids rule. Tell the officer at the start of screening and remove these items so they can be screened separately. Ice packs to keep them cold are also allowed.

Do I need to bring a car seat on the plane?

The FAA says the safest place for a child is in an FAA-approved car seat in their own ticketed seat, not on a lap. If you have bought a seat, bring the car seat. It must carry the label certifying it for use in aircraft. For kids about 22 to 44 pounds, the CARES harness is an approved alternative.

How many diapers should I pack for a flight?

Plan on about one diaper every two to three hours of travel, then add several extras for delays. Keep this supply in your carry-on, not checked luggage, along with wipes, a changing pad, and disposal bags. You can restock at the destination, so you only need enough to cover travel day plus a buffer.

What should never go in checked luggage when traveling with a baby?

Anything you cannot easily replace or wait for: formula and food, all medications, one full change of clothes per child, the comfort item, and your phone or tablet with downloaded entertainment. Checked bags can be delayed or lost, so the essentials for a full travel day stay with you.

Sources & further reading

1. TSA — Traveling with Children
2. TSA — Formula and breast milk are exempt from 3-1-1
3. TSA — Liquids, Aerosols, and Gels (3-1-1) Rule
4. FAA — Flying with Children (Kids' Corner)
5. CDC Yellow Book — Travel Health Kits

This article reflects current AAP, CDC, FDA, and other public-health guidance and is for educational purposes only. It does not constitute medical advice. ParentFlow is a wellness companion — not a substitute for your pediatrician. For any medical concern, contact your healthcare provider.