Alaska Airlines Flight 1866 was a regularly scheduled flight from Anchorage , Alaska , to Seattle , Washington , with intermediate stops . On September 4 , 1971 , the aircraft serving the flight crashed into a mountain in Haines Borough , near Juneau , Alaska ( JNU/PAJN ) on approach for landing . All 111 people were killed . It was the first fatal jet airliner crash of Alaska Airlines , and the deadliest single-plane crash in the history of the United States until June 24 , 1975 , when Eastern Air Lines Flight 66 crashed . To date it is the deadliest accident in Alaska Airlines history
Eastern Air Lines Flight 66
Eastern Air Lines Flight 66
Alaska Airlines Flight 1866