409 Tactical Fighter Squadron (TFS) was reformed on 6 July 2006 at 4 Wing Cold Lake by amalgamating personnel and aircraft from 416 Tactical Fighter Squadron and 441 Tactical Fighter Squadron.

The newly reformed 409 Squadron continues the duties of both 416 and 441 Squadrons and, assisted by 410 Tactical Fighter (Operational Training) Squadron, deploys tactical fighter forces to meet Canadian and allied defence needs. Under the umbrella of the NORAD mission, fighter crews are on stand-by 24/7 ready to respond to any aerospace threat.

The newly reformed 409 Squadron is now 4 Wing's operational CF-18 Squadron.