The second-seeded Jankovic broke five times and saved five breakpoints before winning in 2 hours, 42 minutes.
She will play fourth-seeded Anabel Medina Garrigues of Spain, who defeated No. 6 Sara Errani of Italy 6-2, 6-7 (4), 7-5.
Fifth-seeded Carla Suarez Navarro of Spain routed Klara Zakopalova of the Czech Republic 6-1, 6-2 and will play Sorana Cirstea of Romania, who upset third-seeded Kaia Kanepi of Estonia 6-4, 2-6, 7-5.
Jankovic to face Suarez Navarro in final
