Just got an email from Southwest about there 3 days of deals promo
* Fares do not include federal excise tax of $3.70 per takeoff and landing, airport-assessed passenger facility charges (PFC) of up to $9, and government-imposed September 11th Security Fee of up to $5 one-way.
* 14-day advance purchase required.
* Purchase by May 5, 2011, 11:59 pm Pacific Time.
* Travel through October 5, 2011.
* Blackout Dates Apply: May 26 – 31, June 30, July 4 and September 5, 2011
* Travel valid every day except Fridays & Sundays.