1 8oo--942~o5~12 call now For this age group, the flight needs to be nonstop or make a stop without requiring the child to change aircraft or flight number. Southwest does not accept unaccompanied minors on international itineraries or on Getaways by Southwest vacation packages. This is an important part of the Southwest Airlines Unaccompanied Minor Policy because a regular flight booking is not enough for a younger child traveling alone.