The Comets jumped out to a 12-3 first quarter lead and owned a 32-19 halftime lead.
Ferris was six-of-15 from the field and knocked down three three-point goals to lead the Comets. Tara Sorensen led Pella with nine points. The Lady Dutch failed to score in the fourth quarter.
Charles City will play Dubuque Wahlert in the Class 3A semifinal at 6:30 p.m. Thursday. Pella ends its season at 19-6.
Charles City (22-3) 12 20 14 4 -- 50
Pella (19-5) 3 16 11 0 -- 30