This study is aimed at investigating the ethical behaviors performed by students in online classes. It is descriptive qualitative research. Observation and questionnaires as well as informal interviews for lecturers and students are the tools of data collection. 10 lecturers and 66 students participated in this research. Only a small number of lecturers (<37.5%) stated that the students always show discipline, manner, engagement, honesty, responsibility, creativity, innovation, adaptive with technology whereas many students (77.84%) said that they were always disciplined and responsible in online classes. About creativity, innovation, adaptive to technology, according to some of the lecturers (65%), students sometimes have a good internet connection during online class, use a headset with headphones and a microphone to get audio quality, and prevent disruptions to others. However, not many students (less than 50%) stated that they have a good internet connection during online class, use a headset with headphones and a microphone to get audio quality and prevent disruptions to others. In conclusion, the ethical behaviors of students in an online class in the English Education Study Program of FKIP UNTAN are not always discipline, good manner, engaged, honest, responsible, creative to technology, and good communication with lecturers and peers.