> Is Southwest the lone primary carrier for many of their airports? SWA is generally one of the bigger users of any particular airport they use as SWA tends to

> Is Southwest the lone primary carrier for many of their airports? SWA is generally one of the bigger users of any particular airport they use as SWA tends to avoid the "primary tier" hub airports. SWA examples: Providence or Nashua, not Boston. Houston Hobby--not Intergalactic. Chicago Midway not O'Hare. San Jose rather than San Francisco. etc.