Flintridge Sacred Heart Academy is a private, all-girls Catholic high school in the Roman Catholic Archdiocese of Los Angeles run by the Dominican Sisters of Mission San Jose. It is located in La Cañada Flintridge, California, on a 41 acres (170,000 m2) campus near the San Gabriel Mountains.

'Tuition: $30,800. Room and Board: $37,000, Total: $67,800. Refundable Key & Lock Deposit: $60. Refundable Minor Medical Deposit: $250. Boarding Student Medical Insurance: $740. Additional fee: Tuition Refund Plan: $300 (only if full payment not received by June 1, 2023). New Student Fee: $1,500 (one time only). Graduation Fee: $1,100 (seniors only). Technology: $500. Advanced Placement (AP) Exam Fee: $97. Variable cost: Educational Material: $350 - $500. Uniforms: $400 - $600. '