Carry-On Packing Checklist for Flying with Kids

What goes in the bag decides how your flight feels from the moment you reach the airport. Good packing prevents the two things that stress parents most: not having what a child needs mid-flight, and carrying so much that security becomes a fight.

Travel Documents Kids Need to Fly

Real ID enforcement began May 7, 2025 for domestic flights — a Real ID-compliant license, passport, or another TSA-approved ID is required for travelers 18 and older. Every child needs a valid passport for international travel, even infants a few days old; processing routinely takes several weeks, so apply early. If one parent is traveling alone with a child, some countries and airlines ask for a notarized letter from the other parent or legal guardian authorizing the trip — confirm requirements with your airline and destination before departure.

TSA Rules for Formula, Milk, and Baby Food

The standard TSA rule caps carry-on liquids at 3.4 ounces per container. Formula, breast milk, toddler drinks, and baby food — including pouches and jars — are exempt, with no size or count limit for a reasonable trip length. Declare these items to the TSA officer at the start of screening and remove them from your bag for separate inspection. Ice packs, freezer packs, and gel packs used to keep them cold are allowed even partially frozen or slushy. Clear, translucent bottles screen faster than pouches, though pouches are still permitted.

Carry-On Checklist by Child's Age

What goes in the bag changes as kids get older. Use the list that matches your child's age, then add anything specific to your flight length or destination.

Strollers, Car Seats, and Gate-Checking

The FAA calls an approved car seat the safest place for a child on a plane — look for text on the seat reading "certified for use in motor vehicles and aircraft." Strollers and car seats go through X-ray screening at the checkpoint; carry your child through the metal detector separately. Most airlines gate-check strollers and car seats at no charge and return them on the jetway at your arrival gate — compact travel strollers small enough for the overhead bin can stay with you the whole flight.

In-Flight Tips for Ears, Meds, and Delays

Pack any medicine your child might need in the carry-on, never a checked bag — checked luggage is unreachable mid-flight if a fever or upset stomach hits at 30,000 feet. Sucking on a bottle, pacifier, or lollipop during takeoff and landing helps relieve ear pressure for babies and toddlers. Pack one extra change of clothes for yourself along with your child's, and add extra diapers and snacks beyond what the flight time requires — delays happen, and airports don't always stock family supplies.