Iga Swiatek will compete against Tunisia’s Ons Jabeur to retain her title as world number one for the US Open women’s singles title.
Both athletes won their semi-finals on Thursday.
Fifth seed Jabeur, 28, reached back-to-back Grand Slam finals by winning 6-1 6-3 against France’s Caroline Garcia.
Poland’s two-time major winner Swiatek, 21, moved into her first US Open final with a 3-6 6-1 6-4 victory over Belarusian sixth seed Aryna Sabalenka.
The final takes place in New York on Saturday (21:00 BST).
Jabeur needed little more than an hour to beat 17th seed Garcia in the first semi-final and is now aiming for her first major title after losing July’s Wimbledon final to Kazakhstan’s Elena Rybakina.
Top seed Swiatek, who has won both of her two Grand Slam titles on the French Open clay, fought back from 4-2 down in the deciding set to beat Sabalenka in the second semi-final.
The final will be a match-up between the two most dominant players on the WTA Tour this year.
Before the first of Thursday’s semi-finals there was a moment’s silence held on Arthur Ashe Stadium in memory of Queen Elizabeth II, who has died aged 96.