English as a Second Language (ESL) is a mandatory class for international students when they come to study abroad, particularly those who come from unspoken English country. This study aims to identify the correlation between learning styles and attitude of AIIAS ESL students and their academic achievement. The respondents of this study were thirty-two students. Using Pearson r correlation, this study showed that no correlation in the respondents' achievement among the six types of Reid's learning style (the highest r-value is [less than or equal to] 0, 209 while the lowest is [greater than or equal to] - 0, 263). However, in contrast, the attitude and achievement in this study showed a positive correlation. Among the three aspects of attitude, the emotion and achievement are significantly correlated (r value: 0.487; p value: 0.005). Meanwhile, the cognitive and attitude is significantly correlated with the r value: 0,427 (p value: = 0.05). The weakest correlation with their attitude is behaviour where the r value is only 0.201 (p value = 0.269). Thus, students are aware of their own learning styles in learning new language. In terms of attitude, students maintain a positive attitude toward learning English to achieve good grades in their learning process.