What documents are needed when traveling with a child?

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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If you travel or are going to travel with a child, consider taking the following documents: If the child is traveling with only one of their custodial parents, they must have a letter of consent, preferably in English and notarized, from the other parent or signed by both parents.

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Children. TSA does not require children under 18 to provide identification when traveling within the United States.

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You'll need to fill out an unaccompanied minor form and any necessary Customs and Immigration documents for the day of departure. This form must remain with your child during their journey. At check-in, parents / guardians will also need to provide: A birth certificate or passport as proof of the child's age.

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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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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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Planning your trip
  • Infants on lap. Children under two can sit on a parent's lap during flights to any destination.
  • Infant seats. Alternatively, infants can have their own seat if you bring an approved car seat.
  • All other kids. Children older than two will need a ticket and their own seat on the plane.


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What is a Child Travel Consent form? A Child Travel Consent gives a minor child permission to travel without their parents or legal guardians. Use this form when your child needs to travel alone or with another adult, who is not their legal guardian (e.g., a grandparent, friend, or teacher).

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Travel Documents and Information
  1. Valid photo identification. ...
  2. Travel tickets (plane, train, bus; can be paper or electronic copies)
  3. Boarding passes.
  4. Reservation confirmations (rental car, hotel, pre-paid tickets for events; can be paper or electronic copies)
  5. Credit and debit cards. ...
  6. Cash.
  7. Emergency contact list.


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Beginning May 7, 2025, every air traveler 18 years of age and older will need a REAL ID-compliant driver's license, state-issued enhanced driver's license, or another acceptable form of ID to fly within the United States.

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When flying within the U.S., or traveling internationally by land or sea, a child's birth certificate will suffice most of the time. A notarized letter of consent will be required for children who travel without one or both of their parents or legal guardians.

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The document will include the full name of the non-travelling parent(s) or legal guardian and their relationship to the child. The full name and relationship of the person who is travelling with the child should also be included.

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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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The letter of consent ensures the legitimacy of the travel consent offered by the accompanying adult. With travel consent, children five years or older may fly without a parent or guardian so long as it is a direct flight with no connections. Children older than eight may travel alone on flights with connections.

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Absolutely! The AAP (American Academy of Pediatrics) and FAA (Federal Aviation Administration) strongly encourage bringing your baby's infant car seat on board. It protects against turbulence and keeps your little one safe in their seat, so they're not trying to explore the plane.

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Spirit currently has no official family seating policy. It only states that it can't guarantee that you'll sit with your friends and family if you don't purchase seat assignments; it says that gate agents will work to provide adjacent seats for guests flying with children aged 13 and under whenever possible.

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Spirit Airlines charges $100 as an unaccompanied minor service fee per passenger each way. The charges also include snacks and drinks to be served to the child on board the flight. The unaccompanied minor service fee for a roundtrip flight is $200 (for a two-way flight).

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