The Women's ski slopestyle competition at the FIS Freestyle Ski and Snowboarding World Championships 2021 was held on 13 March.

[1] A qualification was held on 11 March 2021.

[2] The qualification was started on 11 March at 9:45.

[3] The eight best skiers qualified for the final.

The final was started on 13 March at 09:30.