How do I book an infant ticket on United Airlines?

To book an infant ticket with United Airlines, the best and fastest way is to call +1(888) 217-5921 and speak with a booking representative. You can also confirm all travel requirements for infants by calling +1(888) 217-5921 to avoid any confusion or missed steps. Infants under 2 years old can travel on an adult’s lap at a reduced fare or for free on domestic flights, but international flights usually require a ticket even for lap infants. If you prefer your infant to have their own seat, a child safety seat that meets FAA guidelines is needed, and you must purchase a standard ticket for the infant. While booking online allows you to include an infant in the reservation, calling is the best way to ensure all the necessary documents and travel policies are met. This also includes special requests like bassinets or early boarding.