Online learning is a mode of delivery in distance education through the internet [1]. Teachers conduct their classes synchronously (real-time online sessions) or asynchronously (courses at different times). Online learning is currently the primary mode of delivery in the Philippines due to the threat of the COVID-19 pandemic. Due to this, learning management systems (LMS) are used and are essential for the delivery of online classes to meet students’ needs. Integrating technology and the internet in teaching and learning is necessary. This study aimed to determine the perceptions on the utilization of learning management system and its effects on the communication skills of private senior high school students in Manila, the capital city of the Philippines. The connection between LMS and communication skills is not usually explored based on the literature surveyed, hence, the conception of this research study. The following research questions were answered through a survey form which contained both closed and open-ended questions: 1) What are the perceptions on the utilized learning management system of senior high school students? and 2) How effective is the learning management system used in enhancing communication skills? Seventy-four senior high school students from private schools in Manila voluntarily participated in the study. Data were examined using descriptive statistics and thematic analysis. The study found that senior high school students have a positive perception of learning management systems in terms of interaction, instruction, and learning quality. These function as a tool to promote communication among students and between students and teachers that are made possible by its features. Students also think that learning management systems are a way to make collaborative activities possible that further allow them to hone their communication skills. Overall, the respondents deem that online learning quality and communication skills are improved by using LMS. Based on the findings, the study recommends that more trainings be conducted for students and teachers alike to maximize the use of LMS as part of the new normal way of teaching and learning and to further explore this research topic.