On the 9th they will open them until Aug 3rd so the next set after that.
You can check for the next opening now on SWA web-sight in the travel section here
http://www.southwest.com/travel_center/travel_center.html?ref=trvltls_gn
Here is the past few years
SWA release dates
Magic number is 105 days out.
Mostly Thurs 11:00am EST.
05-11-05 released dates through 10-28-05
07-14-05 released dates through 12-12-05
08-18-05 released dates through 01-09-06
09-27-05 released dates through 02-03-06
10-27-05 released dates through 03-31-06
12-20-05 released dates through 06-09-06
02-23-06 released dates through 08-03-06
04-19-06 released dates through 09-12-06
05-26-06 released dates through 10-27-06
07-13-06 released dates through 12-10-06
08-17-06 released dates through 01-09-07
09-21-06 released dates through 03-09-07
11-16-06 released dates through 05-10-07
02-08-07 released dates through 08-24-07
04-26-07 released dates through 11-02-07
06-27-07 released dates through 01-11-08
08-27-07 released dates through 03-07-08
11-08-07 released dates through 05-09-08
