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Can I add a child to an already booked flight spirit?

Once a reservation is confirmed, you are not able to modify the passengers on the booking. Simply create a new reservation for your additional passengers.



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Once a reservation is confirmed, you are not able to modify the passengers on the booking. Simply create a new reservation for your additional passengers.

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If you wish to include an additional traveler, you will need to make a separate booking.

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Family Seating: If Guests with children aged 13 and under do not opt to pre-select seats at the time of booking, our gate agents and Flight Attendants will work to provide adjacent seats when possible.

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How do I add my Known Traveler Number (KTN) to previous reservations? Contact your airline by phone or online to add your Known Traveler Number (KTN).

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Just make your booking first, then contact us to make a separate booking for your child. Children between 5 and 12 can be booked into a different cabin from you.

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Infant on Lap If you have a child who is younger than 2 years of age and you do not wish to purchase a separate seat, your child may travel sitting on your lap. Spirit Airlines will not charge a fare for a lap infant, but, depending on destination, taxes and fees may apply for the infant.

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