KLM Flight 4805 was taking off when it ran broadside into Pan Am Flight 1736. All 248 people on board the KLM plane died; 335 of the 396 people on the Pan Am plane died. 583 died in total.
It is a chartered flight bound from Amsterdam to Las Palmas ... It departed from Los Angeles bound for the same intended destination as KLM 4805—Las Palmas's Gran Canaria International Airport ...