The Belarusian world number one came home 6-4, 6-2 on Rod Laver Arena and will meet either Polish second seed Iga Swiatek or American 19th seed Madison Keys in Saturday's decider.
Sabalenka beats Badosa to reach Australian Open final
Defending champion Aryna Sabalenka put her close friendship with Paula Badosa aside Thursday to sweep past the Spaniard into a third successive Australian Open final.
