The company said this departure is separate from the 11 other senior level positions that were laid off in February.

The airline's Executive Vice President & Chief Transformation Officer Ryan Green's departure coincides with the company’s first major layoffs in its history. Southwest said his departure is unrelated to the 11 senior officials laid off earlier this week.

Southwest Airlines plans to cut 1,750 jobs or 15 percent of its corporate workforce, in the US carrier's first company-wide layoffs in its 54-year history. The Dallas-based airline said Monday that the job cuts would be focused almost entirely on “corporate overhead and leadership positions,