Southwest Airlines Co. LUV is soaring to new heights following an impressive earnings beat and a fresh alliance with activist investor Elliott Investment Management.In its recent earnings report, the airline posted a 5.3% increase in total operating revenue, hitting $6.87 billion — outpacing expectations of $6.81 billion.Earnings Impress Despite ChallengesDespite turbulence from the COVID-19 pandemic and ongoing delivery delays from Boeing, the airline showed resilience with an adjusted net income of $89 mi ...