How far in advance does Southwest release dates

[bear_mom]

Just wondering when next Sept will be released? I'm a planner

 

[ruadisneyfan2]

This link will help when the time comes.
http://www.southwest.com/html/travel-tools/index.html?int=GFOOTER-CUSTOMER-TRAVEL-TOOLS

It's usually around 6-7 months in advance so if I were you I would save this to my favorites and start watching it in January. Once they post the next expansion date, it's subject to change.