Https://intercom.help/infanthelp/en/articles/11538680-step-by-step-guide-to-adding-an-infant-or-minor-to-your-frontier-airlines-itinerary https://intercom.help/infanthelp/en/articles/11538680-step-by-step-guide-to-adding-an-infant-or-minor-to-your-frontier-airlines-itinerary