Haley Peters had 17 points and 13 rebounds in No. 6 Duke's 72-66 win over No. 23 Florida State in the semifinals of the ACC Tournament.
Tricia Liston added 17 points for the Blue Devils (29-2), who advanced to the ACC title game for the 11th time in 14 years.
Duke will play No. 15 North Carolina, which defeated No. 10 Maryland later Saturday, in Sunday's final.
Chelsea Davis netted 17 points for the fourth-seeded Seminoles (22-9), who were in just their third ACC semifinal in school history.
With the game tied at 58-58, Peters' layup put Duke ahead for good with 4:06 left. Richa Jackson converted a layup on the Blue Devils' next possession before Alexa Deluzio sunk two free throws to pull FSU within 62-60.
But the Seminoles didn't record a point over the final 3:12 of play.
Duke led throughout the nip-and-tuck affair. The Blue Devils jumped out to an 11-3 advantage before FSU fought back to cut the deficit to 34-31 entering the break.