PRNewswire -- Southwest Airlines is offering Customers nationwide airfares starting as low as $49 one-way. Take advantage of these super low fares on southwest.com and start planning your spring or summer getaway today! Fares are available for travel Mondays through Thursdays or Saturdays when purchased by April 6, 2009. These fares are only available on southwest.com and require 14-day advance purchase for travel by Aug. 14, 2009. To get these special online fares, click here. Examples of fares include (see Additional Fare Rules below):
