Southwest Airlines became the latest US carrier on Wednesday to withdraw its financial forecast as President Trump’s trade ...

The airline said it expects unit revenue to be flat to down as much as 4% in the second quarter from a year earlier.

A Southwest Airlines flight headed to Los Cabos, Mexico, returned to Texas on Thursday after an apparent issue with the plane ...

But, as TPG first reported last fall, Southwest customers won't have to wait until then to start seeing the more spacious ...