Forward Maya Moore led Minnesota with 20 points and eight rebounds, guiding the Lynx to a 91-80 victory over Los Angeles in the decisive third game of their Western Conference semifinal series at Minneapolis.
Minnesota advances to meet the Phoenix Mercury for the Western Conference title, with the opening game scheduled for Thursday in Minneapolis.
Moore sank just six of 21 shots from the floor, but she made all eight of her free throws.
Guard Seimone Augustus added 16 points for Minnesota, which got 14 from guard Lindsay Whalen, 13 from center Sylvia Fowles and 12 from center Devereaux Peters.
Sparks forward Candace Parker produced game highs in points (28) and rebounds (13). Forward Nneka Ogwumike and guard Kristi Toliver each scored 12 points for Los Angeles, and center Jantel Lavender contributed 11 points.