What are the rules for flying with a baby?

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.



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Typically, minors under the age of 18 do not have to present identification for domestic U.S. travel. Airlines will accept identification from the responsible adult on behalf of the minor(s). For international travel, minors under the age of 18 must present the same travel documents as the adult.

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Standard strollers, folding wagons, and car seats can be used to get to your gate and then checked for free. They'll be returned to you on arrival. Collapsible strollers can be stored in-cabin. Car seats can be used onboard your flight too.

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You may transport this item in carry-on or checked bags. For items you wish to carry on, you should check with the airline to ensure that the item will fit in the overhead bin or underneath the seat of the airplane.

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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.

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First, choose the bulkhead, the window, and near the toilets. These seats are the most convenient spots for families when flying. Second, if you have an infant, get a bulkhead seat, and request a bassinet, a crib that attaches to the cabin's front wall.

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If you're traveling with a child of any age, you can bring the following on your flight for free in addition to your carry-on and personal items: Diaper bag. Breast pump, milk or formula. FAA-approved car seat.

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Formula, breast milk, toddler drinks, and baby/toddler food (to include puree pouches) are considered medically necessary liquids. This also applies to breast milk and formula cooling accessories, such as ice packs, freezer packs, and gel packs (regardless of presence of breast milk).

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If you are flying domestically and your baby will be flying as a lap child, you may be asked for proof at check-in that they are indeed younger than 2 years old. If your child is flying domestically on their own ticket (not as a lap child) they probably won't need any sort of ID until they are 18 years old.

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U.S. citizen children traveling abroad If you are traveling alone with your child, you may be required to present documentation proving you are the parent or legal guardian. You may also need a letter of permission from the other parent for your child to travel.

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Spirit Airlines reserves the right to request documented proof of age for any passenger 2 years of age or younger. You must be prepared to provide documentation (such as the child's birth certificate or passport) upon request.

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Make sure you bring plenty of pacifiers and bottles with you on the plane so that your baby can use them as needed throughout the flight. If your baby is particularly sensitive to loud noises, consider using ear plugs or ear muffs while flying.

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Chewing is another great way to help babies equalise their ear pressure while flying. Offer them something soft and safe to chew on, such as a teething toy or mitten with chewable protrusions on, which will help open up their Eustachian tubes and allow air to flow more easily through their inner ear.

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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.

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Checked Bags: Yes 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. Please see traveling with children for more information. For more prohibited items, please go to the 'What Can I Bring?'

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Compact folding stroller that meets our size guidelines for carry-on bags (9 inches x 14 inches x 22 inches or 9 inches x 10 inches x 17 inches). United accept accept one stroller or folding wagon free of charge for each child in addition to a car seat.

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