Blended learning is emerging as a modern teaching approach of the school educational system in many countries. Moreover, blended learning in reading lessons from EFL high school students’ perceptions is a rather new field in the Mekong Delta- Vietnam. For these reasons, the study tried to reveal EFL high school students’ perceptions of benefits and challenges of blended learning in reading lessons. The study was conducted as a descriptive study under concurrent nested design in which thirty-six close-ended items are embedded within three open-ended items in the questionnaire. Sixty (60) high school students in grade 10 participated in the study. The findings showed that students achieved more benefits than faced challenges in blended reading lessons. Finally, the suggested pedagogical implications of blended learning in reading lessons from EFL high schools’ perceptions are contributed to the innovation of teaching reading lessons in the high school context in the Mekong Delta- Vietnam.

Keywords: EFL high school students, perceptions, blended learning, benefits, challenges, Mekong Delta.