The purpose of this research is to provide a systematic review on the flipped classroom (FL) approach in English language teaching (ELT) in Vietnam in terms of the trends and the key results, based on 12 published articles. A content analysis method was employed to analyze the collected papers. The findings indicated that the implementation of flipped learning appeared to gradually increase in Vietnam since 2017 and remain its prosperity in the higher education context. Also, the results revealed that a variety of research methods were used in selected articles
however, the most common one was the mixed method. Moreover, grammar and speaking skills were the two basic language skills being commonly studied. Additionally, the flipped learning was shown to not only produce an improvement on learners’ achievement but also positively affect their perspectives toward its application. The findings also pointed out some challenges and benefits concerning the utilization of the FC in ELT in Vietnam. Finally, some suggestions were provided to educators and future scholars.