B757-200
Flight Crew Air Transport Pilot (ATP)
Situational Awareness; Communication Breakdown
Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor; Inflight Event / Encounter Other / Unknown
Air Traffic Control Provided Assistance; Flight Crew Diverted; General Declared Emergency
Environment - Non Weather Related
Enroute FL370 approximately 150 NM north of ZZZ began smelling unusual (smoky) odor in cockpit. Immediately donned O2 [mask] and queried flight attendants who also had noticed smell. Declared emergency; requested diversion to ZZZ and began ATC assigned descent to FL240 (First Officer flying). Completed Smoke; Fire or Fumes QRH Checklist. During descent one Flight Attendant mentioned local area wildfires. We asked ATC if other aircraft in area had reported smoke odors. He queried four other aircraft. One said they had smelled faint odor and the other three said; 'No'. At that point; well into descent; we elected to continue to ZZZ. Landed overweight at minimum sink rate. Upon gate arrival we were advised by ZZZ Station Personnel that they had a prior diversion for the same reason. Called Dispatch. They had another [aircraft] south of ZZZ who called about smoke smell. I suggested that it might be a good idea to add a message to Flight Plans regarding the issue.
[Narrative 2 contains no additional information.]
B757-200 flight crew noticed 'smoky' odor in cockpit at FL370. Crew confirmed odor with flight attendants; declared an emergency; and diverted. Area wildfires found to be the cause of odor.