21 june 2017
In the fifth test flight MC-21 was in the air over 2 hours
During the flight, lasted 2 hours and 10 minutes, the aircraft fully completed the flight task, which included testing the wing in all configurations. In particular, the landing was carried out in the landing configuration of high lift devices. The aircraft flew with retracted landing gear.
On 20 June, 2017 Oleg Demchenko, the president of Irkut Corporation at the Paris International Air Show said that МС-21-300 will perform more than 30 test flights within development test program after which certification tests will begin.