Southwest Airlines allotted mainly three boarding groups for the travelers at the airport which is namely A, B, and C.Furthermore, the airlines have one more boarding group for persons with disabilities and special requirements which is known as pre-boarding groups.Depending on their fare class or check-in time, passengers are assigned a boarding position. To know more about how many boarding groups does Southwest have, its benefits, and guidelines, visit the Southwest Airlines official website or speak to customer service at the airline.