Changes of clothes: You can never be too prepared—one for you, one for your toddler. Toys: Books, stuffed animals, or simple puzzles are safe bets. Sippy cups: Bringing an empty sippy cup is beneficial if your toddler uses one, as the flight attendant can fill it during drink rounds.

In 2026, toddlers are granted significant exemptions from standard security rules to ensure their comfort during flight. Parents can bring "reasonable quantities" of liquids, including milk, formula, juice, and pureed food pouches, which are exempt from the 3-1-1 liquid rule (though they must be declared for separate screening). Toddlers are also allowed a personal carry-on bag containing toys, tablet devices, and "comfort items" like blankets or stuffed animals. For snacks, dry options like crackers, dried fruit, and granola bars are best as they face zero restrictions. Additionally, most airlines allow you to gate-check a stroller and a car seat for free, or you can bring a FAA-approved car seat on board if you have purchased a separate seat for the child. Pro tip for 2026: Pack "powdered milk" packets to avoid liquid screenings entirely, as they can be easily mixed with bottled water purchased after passing through the security checkpoint.