I wonder if it's because of the flash sale that WN is running today only for travel on select Tuesdays and Wednesdays in September. Seeing transcons (OK, connections) < $200 RT ai, and otherwise their shortest routes for as low as $72 RT ai. If this is a fare war, I wish it would expand to other carriers.
http://www.southwest.com/html/promot...ROFARSAV120803