In the complex terrain of high school education, it is critical to comprehend the elements that greatly influence academic achievement. This study evaluated the impact of studentteacher interaction, socioeconomic status, and facilities at school on the academic achievement of high school students. The cross-sectional and quantitative research design was employed. Multistage and proportionate sampling techniques were used. 280 respondents were selected using these techniques from public sector high schools in Faisalabad. Data were collected using a questionnaire having the key study variables. The collected data was analysed with IBM SPSS for windows (27 edition). Descriptive, correlational, and multiple regression analyses were utilised to evaluate the impact of student-teacher interaction, socioeconomic status, and facilities at school on the academic achievement of high school students. The findings of the study show that student-teacher interaction, socioeconomic status, and facilities at school significantly positively impact academic achievement. The study underscores the importance of positive interaction between students and teachers, socioeconomic parity, and school infrastructure in optimizing academic achievement. Policy recommendations for educational leaders, policymakers, and administrators are also discussed.