The present study attempted to investigate the current situation and limitations of online classes implemented at the college level. To this end, a university located in the Yeongnam, Honam, and Chungcheong area was selected respectively, and students enrolled in these universities were requested to complete a questionnaire. The questionnaire consisted of various items related to online classes. Results showed that the most frequently used type of online class was asynchronous video lectures. The variables related to the instructor such as differences in class preparation level, ability to use information and communication devices were the most influential factors on the quality of online class. The findings also revealed that the most critical reason that the participants preferred online classes was not due to the advantages of online classes themselves, but it was due to the prevention of the spread of infectious diseases. The students were less confident in using software than using hardware, and the students’ satisfaction level of asynchronous video lectures was highest while the satisfaction level of the assignment-oriented lectures was lowest. Finally, the participants’ suggestions for improving online class included an expansion of the online web server capacity, instructors exhibiting more enthusiasm in online classes, and a variety of teaching and learning contents. Several implications can be drawn from the study.