A man aboard a Southwest Airlines flight bound for Los Angeles from Dallas died after experiencing a medical emergency mid-flight, law enforcement sources tell NBC4. 958 to Los Angeles International Airport was in the air Friday morning when a passenger went into medical distress and became unresponsive, according to the source. Stream Los Angeles News for free, 24/7, wherever you are. WATCH HERE WATCH HERECPR was administered to the man during the flight and medics responded to the plane upon its arrival in Los Angeles. It’s unclear what kind of medical emergency the man experienced.