This Day in History: br Malaysia Airlines Flight Vanishes br With More Than 200 People Aboard March 8, 2014 Malaysia Airlines Flight 370 br had 239 people aboard when the br flight lost contact with air traffic control. The Boeing 777 disappeared br on route to Beijing Capital International Airport, br less than an hour after takeoff. The mysterious disappearance of the flight prompted br extensive, coordinated international investigations. Satellite transmissions revealed br the flight had veered off course, br operating on autopilot for several hours. Theories of what caused the br disappearance abounded, including br terrorism and oxygen deprivation. All those aboard the doomed br flight are presumed dead. br Exactly what happened to the br Malaysian airliner remains a mystery.