But the sale Southwest announced today is anything but routine. It features airfares for holiday travel - from Dec. 13 to Jan. 5. And while there are blackout dates, there are not nearly as many as you might expect for a peak travel period.
One-way fares from Baltimore range from $49 to Boston to $199 for a trip to San Francisco. The sale is only for this weekend - it ends Columbus Day at 11:59 p.m.
To top off the fun, AirTran has also lowered some of its fares to match the Southwest sale. And you can look for other airlines to follow.