This article lists the deadliest aircraft accidents and incidents involving commercial passenger and cargo flights, military passenger and cargo flights, or general aviation flights that have been involved in a ground or mid-air collision.
As of 17 August 2024, 206 accidents and incidents have resulted in at least 100 fatalities, 34 at least 200 fatalities, eight at least 300 fatalities, and four at least 500 fatalities.