Passengers aboard a Southwest Airline jet that took a dramatic plunge to avoid an oncoming aircraft were told by the pilot that they nearly struck another plane before landing safely in Las Vegas. The Boeing 737 jet dropped hundreds of feet in a little over 30 seconds during a flight on Friday,

Southwest Airlines is one of the largest and most recognizable airlines in the United States, competing with Delta, United, and American in a number of key metrics. However, there is one somewhat surprising way Southwest has never even tried to compete with the other three major airlines.