A Southwest Airlines flight dropped several hundred feet in a matter of seconds to avoid a midair collision, after the Federal Aviation Administration said pilots were alerted to another aircraft's presence in the area.

A person on the flight said it “dove aggressively” and that people flew out of their seats. The flight landed safely at its destination, Las Vegas.

Southwest Airlines took a huge step in its international flights initiative with the recent opening of a five-gate, $146 million terminal at Houston's Hobby Airport.

Passengers aboard Southwest flight 1496 from California to Nevada experienced a frightening few seconds when the aircraft took a sudden nosedive to avoid a midair collision.