Portal:Transport/Selected anniversaries/September 9
- 1966 – The National Traffic and Motor Vehicle Safety Act signed into law by U.S. President Lyndon B. Johnson.
- 1969 – Allegheny Airlines Flight 853 DC-9 collided in flight with a Piper PA-28 and crashed near Fairland, Indiana.
- 1970 – A British airliner is hijacked by the Popular Front for the Liberation of Palestine and flown to Dawson's Field in Jordan.
More events: December 13 – December 14 – December 15