This study was conducted to examine the needs of the students of cabin services program regarding English in order to guide the design of a vocational English language curriculum. The research design used in this study was the concurrent triangulation approach, one of the mixed methods models. This approach can be used when the researcher collects both qualitative and quantitative data at the same time not giving privilege to either approach. It compares the two different data types to find out similarities and differences. There were two groups of participants in this study. The first group was composed of 352 students, enrolled in the Vocational School of Civil Aviation from four universities, who were selected with cluster sampling method, while the second group included 10 instructors working in these universities and four in-service flight attendants. A questionnaire and a semi-structured interview developed by the researcher were utilized to collect data. The quantitative data obtained from the questionnaire were analyzed through descriptive statistics procedures including frequencies, percentages, means and standard deviations, while qualitative data were analyzed through content analysis. Findings revealed that the students needed to develop their speaking and listening skills in order to be successful in their future work settings, although they were least competent in these skills. Based on further findings determined by needs analysis, the study was concluded with a sample guide for practitioners planning to develop a vocational English language curriculum using Hilda Taba's curriculum development model.