Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Distraction
Conflict Airborne Conflict
General None Reported / Taken
Aircraft; Human Factors
While on approach to Runway 28C; ORD about 1 mile to SEIKA (FAF); noticed object move rapidly through my field of vision from the front to the left as we went past it. Object appeared to be a quadcopter UAV and was at our altitude (approximately 2;500 ft MSL). It happened very rapidly and I did not have time to react to the object until it was past the left wing.
On approach to ORD Runway 28C just outside SEIKA; I noticed what appeared to be a party balloon at our altitude. The Captain looked out left to the rear and said he saw a quadcopter drone. I reported it to tower. After we landed we gave ground a description of the drone; the altitude; and the location. On the post-flight walk-around I looked carefully for evidence of impact; and found none.
Flight crew reported an uneventful airborne conflict with a drone during initial approach.