To develop the 2011 Southwest Airlines One Report™, we increased our scope, boundary, and measurement methods that were used to develop the 2010 Southwest Airlines One Report™ and 2009 Southwest Airlines One Report™ to include the AirTran acquisition. In 2011, we worked diligently to integrate AirTran data with Southwest Airlines’ data where available and feasible. Due to the AirTran acquisition during 2011, AirTran data is reported differently within each section comprising our triple bottom line:

• Performance: AirTran data beginning May 2, 2011, is included in Southwest Airlines Performance section data unless otherwise stated.
• People: AirTran data is excluded from People data unless otherwise stated.
• Planet: AirTran jet fuel, diesel, and gasoline consumption totals beginning May 2, 2011, are included in Southwest Airlines consumption totals. AirTran data is excluded from other Southwest Airlines data unless otherwise stated.