On 11 April 2018, an Ilyushin Il-76 military transport aircraft of the Algerian Air Force crashed shortly after take-off from Boufarik Airport, Boufarik, Algeria, which is near Blida and south-west of the capital, Algiers. All 257 people on board were killed, making the accident the deadliest air crash on Algerian soil.

The aircraft was an Ilyushin Il-76TD of the Algerian Air Force's 347e Escadron de Transport Stratégique produced by Tashkent Aviation Production Association. The aircraft, registered 7T-WIV, msn 1043419649, had first flown in 1994.

At 07:50 local time (06:50 UTC), the aircraft crashed just outside the perimeter of Boufarik Airport, Boufarik, from which it had recently taken off. Witnesses reported that the wing of the aircraft had caught fire prior to the crash. The flight had a final destination of Tindouf Airport, Tindouf, with a stopover in Boudghene Ben Ali Lotfi Airport, Béchar. All 10 crew and 247 passengers on board were killed on the scene. Among the passengers were 176 members of the Algerian People's National Army. Many of these soldiers and officers were traveling with family members.

Thirty Saharawi students and other civilians from the refugee camps in Tindouf were among the dead according to officials of the Saharawi Republic. They had been visiting Algiers for various medical and bureaucratic reasons. Saharawis from the refugee camps are regularly provided with free flights in Algerian military transport aircraft. Initial reports claimed that a senior member of the National Liberation Front, the governing party of the National Assembly in Algeria, said that 26 Polisario Front members were among the casualties. The Moroccan media in particular unanimously claimed that several Polisario Front members were among the dead; however, Algerian and Saharawi officials have since maintained that there were only 30 Saharawi civilian casualties.

Local authorities dispatched fourteen ambulances, ten fire apparatus and 130 personnel to attend to the crash site. As a result of the crash, the road between Boufarik and Blida was temporarily closed to traffic.

Following the accident, Abdelaziz Bouteflika, the President of Algeria, declared three days of national mourning, echoing his reaction to the 2014 military air crash. For his part, Brahim Ghali, the President of the Saharawi Arab Democratic Republic, declared seven days of national mourning. Ahmed Gaid Salah, Chief of Staff of the Algerian Army, ordered an investigation to determine the cause of the accident. Russia stated that it would assist in the investigation.

• List of accidents and incidents involving military aircraft (2010–present)