Southwest Airlines announed that it is adding a new stop,direct from MSP: Phoenix, Arizona. The non-stop flights, offered twice daily, begin August 15. Southwest began flying out of Minneapolis in March 2009 with direct flights to Chicago. It has since added flights to Denver and St. Louis, making Phoenix its fourth destiniation served by non-stops. The news is good for anyone with a hankering for some fun in the sun. Where Southwest goes, fares tend to drop with the added competition.