In his rookie season, Biletnikoff played primarily on special teams. He did not see playing time on offense until the seventh game of the year, against the Boston Patriots, in which he caught seven passes for 118 yards. His production increased significantly with Oakland's acquisition of quarterback Daryle Lamonica in 1967. That year, he caught 40 passes for 876 yards and five touchdowns and led the league with an average of 21.9 yards per reception. He was invited to play in the 1967 AFL All-Star Game. In that year's AFL championship game, Biletnikoff had two receptions for 19 yards in the Raiders' 40–7 blow-out win over the Houston Oilers. In Super Bowl II against the Green Bay Packers, he caught two passes for 10 yards as the Raiders were defeated 33–14.