ICYMI - Southwest extended their schedule yesterday for flights through January 5, 2022.
They also provided their next release date today: It will be 9/16/21 for travel through April 18th, 2022. Given how far out this is, I'd also say that this date could move up, so I'll keep everybody posted!
Also, Here is my usual Historical Southwest Release Dates (for planning purposes) comment.
Release Date | Travel Through
next release: 9/16/21 | April 18, 2022
6/10/21 | January 5, 2022
4/1/21 | November 5, 2021
12/10/20 | August 16, 2021
8/13/20 | April 11th, 2021
5/28/20 | January 4th, 2021
3/12/20 | October 30th, 2020
12/11/19 | August 10th, 2020
10/30/19 | June 6th, 2020
9/26/19 | April 13th, 2020
8/15/19 | March 6th, 2020
5/30/19 | January 5th, 2020
Yesterday's release occurred at 7:15am Eastern. Here is a list of recent release times:
6/10/21 | 7:15am
4/1/21 | 9:10am
12/10/20 | 7:15am
8/13/20 | 9:15am
5/28/20 | 9:06am
3/12/20 | 9:40am
12/11/19 | 9:10am
10/30/19 | 7:15am
9/26/19 | 7:30am
8/15/19 | 10:41am
5/30/19 | 9:20am