WHAT IS FLINT HILLS CHRISTIAN SCHOOL. Flint Hills Christian School (FHCS) is a private, independent, non-denominational, and discipleship-oriented. Christian school located in Manhattan, KS (approximately two hours west of Kansas City, MO). FHCS maintains. an average annual enrollment of approximately 215 students in grades Pre-Kindergarten through 12th grade. FHCS is fully accredited through both ACSI and Cognia, boasts an average ACT score of 2...