Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Other / Unknown; Situational Awareness
Conflict Airborne Conflict; Conflict NMAC; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Airspace Structure; Environment - Non Weather Related
Shortly after being given a vector to intercept the localizer inbound on the ILS 26L into Ontario; CA my First Officer advised me that he saw a drone pass under our right wing. I never saw the drone; but immediately after being notified from the First Officer I reported the sighting to ATC (Approach Control). No evasive maneuvers were needed; nor any deviations from ATC instruction were needed. Drone came within 10-20 ft. from striking aircraft.
Airline Captain reported NMAC with a UAV during the turn to final approach.