Pro-environmental behavior has become a topic of study in sustainability research. This research aims to examine the factors influencing the public's pro-environmental behavior to use public transport. The study utilized the extended Theory of Planned behavior, where the determinants being examined comprise attitude, subjective norm, perceived behavioral control, economic benefits, and media attention. This study employed a quantitative method and applied a purposive sampling technique with 175 valid respondents recorded. The data analysis techniques utilized were descriptive analysis and partial least square through the Statistical Package of Social Science version 26 and Smart-PLS 3.3.9. The findings indicated that only attitude and perceived behavioral control are the predictors of pro-environmental behavior to use public transport, whereas subjective norms, economic benefits, and media attention were not the predictors. The study contributes to the sustainability scholarship by incorporating economic benefits and media attention as an important construct to expand the TPB theory with the societal factors, which provide relevant strategies for the ministry of transport and public transportation companies. Conclusion, implications, and suggestions for future study were also discussed.