What does Southwest require for minors? According to Southwest Airlines, between 5 years to 11-year-old children can fly alone by using the Southwest Airlines Unaccompanied Minor Policy. Between the ages of 12 years to 17, you can fly without using any unaccompanied minor policy if needed; they can use minor policy. For more details, you can visit Southwest Airlines official website. To learn more, you can also visit: https://www.airlinesunaccompaniedminor.com/southwest-airlines-umnr-policy #travelagency #southwestairlines #unaccompaniedminorpolicy #customerservice #usa #post