Southwest Sale Fares ??

[rantnnravin]

Has anyone ever seen Southwest offer additional reduced fare tickets on flights that are completely booked on-line?

 

[cdpa4d]

I have not seen this; however, somtimes a DING fare may come available depending on the time of year and availability of the flights during the sale.
If SWA offers more seats they would probably have to add another flight for your date of travel. The chances of that are slim since SWA only has so many planes. Their fleet of planes are usually all scheduled for each day, so the chance of adding a flight is almost impossible without affecting another city.