The most important assets in project-oriented companies are knowledge and experience that are in its human capital. The goal of our quantitative correlation study is to gain insight on the role of the effective use of intellectual capital concerning the financial performance of the airlines in Kazakhstan through Project Management tools. Leading airlines in Kazakhstan provided information about human capital management through an online survey organized by SurveyMonkey. Airline HC's performance is based on the Intelligent Value-Added Index (VAIC) method and theoretical framework. Spearman's rank correlation coefficient was used to test a hypothetical relationship between variables. The results of our study showed a strong significant positive relationship between human capital management and the financial performance of airlines in the Republic of Kazakhstan. The results also show that the success of airlines depends on the expertise and competitive knowledge of its human capital.