1 8oo-942~o5~12 if you have questions about your upcoming trip Booking travel for a child flying alone requires a little extra planning, but the process is straightforward when you follow the Southwest Airlines Unaccompanied Minor Policy . If you're completing a Southwest Airlines Minor Flight Booking, Southwest Airlines Child Flight Booking, Southwest Airlines Youth Flight Booking, or Southwest Airlines Teen Flight Booking, understanding each step before travel can help prevent delays and make the experience more comfortable for both you and your child.