583 fatalities

What Is The Deadliest Plane Crash In History? On March 27, 1977, two Boeing 747 passenger jets, operating KLM Flight 4805 and Pan Am Flight 1736, collided on the runway at Los Rodeos Airport (now Tenerife North Airport) on the Spanish island of Tenerife. Resulting in 583 fatalities, the Tenerife airport disaster is the deadliest