Southwest Airlines has carried more passengers than any other U.S. airline since August 2006 for combined domestic and international passengers according to the U.S. Department of Transportation 's Bureau of Transportation Statistics .
The airline has been in business since 1971 .
The airline has been in business since 1971 .
Haz la oración simple: Southwest Airlines has carried more passengers than any other U.S. airline since August 2006 for combined domestic and international passengers according to the U.S. Department of Transportation 's Bureau of Transportation Statistics . Producción: