Indonesian aviation cadets' complex and multi-faceted tasks have directed them to exhaustion and less learning focus. Their motivation and self-efficacy in learning Aviation English are hampered so their anxiety dominates. This hypothetical cause and effect enforce the present study to describe their motivation, anxiety, and self-efficacy in learning Aviation English. The present study also aimed to reveal the effect of each construct on their learning performance and identify the most predictive sub-skills that contribute to their motivation, anxiety, and self-efficacy formation. This study used a cross-sectional survey research design with a quantitative research approach. There were 207 aviation cadets chosen purposively to participate in the study. Data were collected using the Motivation, Anxiety, and Self-Efficacy Scale (MASS) with a 6-point Likert's scaling method ([alpha] = 0.987) and cadets' final test scores. Data were analyzed using descriptive statistics, "Pearson r" correlation, and hierarchical multiple regression with the assistance of SPSS software. Results showed that cadets' motivation, anxiety, and self-efficacy in learning Aviation English were high, thus, their learning optimism and pessimism were growing together. Each variable had a positive and strong relationship with one other (r > 0.05, p < 0.001). Another finding was that communication and test anxiety was the most influencing factor in determining cadets' learning performance.