AND, they are booking thru the first week of August now. Unlike the major airlines, SWA doesn't book as far in advance, but that's a longer view for advance planners - besides, the majors will change or cancel flights according to their whims anyway.
BONUS! They're now quoting thru fares from Lubbock with only the one stop in Houston. The lowest date pair I see for July travel seems to offer $438 trips vs America & United trying to gouge me for $758 plus luggage fees. It looks like they're about to win me back after three decades avoiding them.