http://www.prnewswire.com/news-rele...-celebrate-40-years-of-service-124267369.html For 72 Hours, Airline Commemorates 40 Years of LUV with Fares as Low as $40 Since 1971, the mission of Southwest Airlines (NYSE: LUV) has been to provide great Customer Service and super low fares. In honor of the airline's 40th Anniversary, Customers can purchase one-way tickets for $40, $80, or $120 to select destinations, based on length of travel. For travel up to 450 miles, fares are $40 one-way. For travel between 451 and 1,250 miles, fares are $80 one-way. For travel more than 1,251 miles, fares are $120 one-way. These fares are available for purchase through 11:59 p.m. PDT June 23, 2011, for travel beginning Aug. 23, 2011, through Nov. 16, 2011. To see the list of available cities, prices, and to take advantage of these special fares, visit www.southwest.com. "Southwest Airlines is celebrating its 40th Anniversary with its Customers by offering even lower fares," said Kevin Krone, Southwest Airlines Vice President of Marketing, Sales, and Distribution. "We couldn't think of a better way to surprise and delight our Customers than with the offer to travel all over the country on Southwest's incredibly low fares." Examples of these low fares include (see Fare Rules below): $40 one-way between Philadelphia and the Boston Area $80 one-way between Denver and San Francisco (SFO) $120 one-way between Baltimore/Washington and Los Angeles (LAX) As a part of the effort to spread low fares farther through the integration of two airlines, AirTran Airways, Southwest's wholly owned subsidiary, launched a parallel fare sale today. AirTran is celebrating Southwest's 40 years of great service with fares as low as $40 one-way. AirTran's fares along with terms and conditions can be found at www.airtran.com.