A Southwest Airlines flight departing from Burbank to Las Vegas faced a life-threatening situation when it suddenly plunged nearly 500 feet to avoid a mid-air collision with another aircraft. Passengers described a terrifying experience as they were thrown from their seats during the aggressive maneuver. The flight crew reported that two flight attendants were injured during the descent triggered by warnings about a nearby fighter jet. Video footage from the incident highlights the drastic drop shortly after takeoff, prompting an urgent evasive action. Fortunately, the plane successfully avoided a potential crash, but the incident left passengers rattled and concerned.