Infants or children under 2 years of age can travel on the lap of an adult for free (within the United States) or at a reduced fare (for international travel).
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Ticket fares for babies and childrenOn domestic flights, infants under the age of two often fly for free if seated on their parent's lap, and some airlines charge a (discounted) fare. On international flights, airlines often charge 10% of the adult ticket price.
Most international flights allow children under 2 to fly as lap children, but with one big difference — it's usually not 100% free. Typically, if you're flying on a revenue ticket, you must pay the taxes and fees for your lap infant plus, in some cases, 10% of the fare.
?Parents of children over the age of 2 are typically required to pay the full adult fare for their kids. ? Whereas kids fly free with an accompanying adult if they are sitting on the adult's lap and are under 2, they would then be considered a lap infant.
United Airlines, Delta Air Lines, Southwest Airlines and many others have similar policies for domestic flights, with a cutoff age of 2 years old. On international flights, there is no fare for lap infants, but fees may apply. In most cases, you'll need to add the infant to the adult's ticket.
Travel Restrictions and Required DocumentationIs your child two years old? Or turning two years old en route? If yes, then a seat is required to be purchased for all flights in which your child is 2 years old.
To prove your child's age to an airline, one of the following documents will suffice: Child's passport (how to get a U.S. passport for an infant and things to know about children's passports) Child's birth certificate. Child's immunization form or other medical records may also work domestically.
How much does a child ticket cost? The price of a child ticket will differ from airline to airline. Some airlines offer discounted prices for children, whereas others have a flat fare for adults and children. On average, discounted airline tickets for children are around 25—33% cheaper than adult tickets.
However, children over the age of 2 must pay for a flight ticket and have their own seat on the aircraft. Many airlines will only charge between 50% to 80% of an adult ticket, for a child flight ticket.
Although children who have not reached their second birthday are permitted to travel as lap children, the FAA strongly discourages this practice and recommends that you secure your child in an approved CRS in their own seat for the entire flight.
The infant must be under 2 years of age for the duration of the trip. If they turn 2 during a trip, they will need their own seat for the remainder of the trip.
Related: Why you should travel while your baby is an infantIf you have a trip that spans your child's second birthday, only the outbound flight will be free. On the return flight, you will be required to purchase your now-2-year-old a seat with a one-way ticket.
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.