Navarro prevailed 25-22, 25-15, 25-20.
Blinn is now 29-7 overall and 10-5 in region play.
Freshman Taylor Glendening paced the Bucs with five kills, and sophomore Kierslynn Wright and freshman LaNeah Lara had four apiece.
Freshman setter Darby Nash had 17 set assists.
On defense, sophomore libero Ellie Turner posted 24 digs while Nash finished with 10.
Blinn finishes its regular season with a home tilt against Panola College at 4 p.m. on Saturday, Oct. 29, at the Kruse Center in Brenham, Texas. The Bucs will celebrate Sophomore Day.
Blinn has competed in intercollegiate athletics since 1903 and captured 42 NJCAA national championships since 1987.