On June 15, 2017, the third flight of MC-21-300 commercial aircraft took place at the airfield of Irkutsk Aviation Plant, the affiliate of Irkut Corporation (a UAC member).

The flight was carried out as part of the development test program and lasted 1.5 hours.

During the flight, the range of flight modes was extended and the configuration of high lift devices was examined to change from takeoff to cruising. Flight mission was fully completed.