The 2004Wilkes-Barre/Scranton Pioneers season was the team's third season as a member of the af2. The Pioneers finished with a 13-3 record under new head coach Les Moss, their fourth head coach in three seasons. The Pioneers clinched the Northeastern Division and secured their first playoff appearance. The Pioneers lost in the third week of the postseason, ending their playoff run just short of the ArenaCup. Following the season, Moss signed a contract to remain the head coach for a second season, the first returning coach in team history.