Originally Posted by karalp
Do cheaper flights that say unavailable now ever come available?
Welcome to FT.
Yes, availability sometimes (maybe 20% of the time I've tried) improves between 12 and 8 weeks before your travel date. This is unlikely to happen for Friday or Sunday evening flights or for any other flight that Southwest expects to sell out. If you want to travel at a peak time, don't expect the lowest fare no matter when you buy.