Technological and social developments cause the birth and death rates to decrease. This has a direct effect on the increase in the rate of old age in the total population. In Turkey like in other countries, they face various problems in transportation in addition to education, health, justice, and social security. Therefore, the airline companies should provide some special services to elderly individuals in terms of accessibility and usability for their websites. This chapter aims to examine the accessibility of websites of airline companies for 65 and older individuals. Then, the second aim of this chapter is to determine the criteria for accessibility and alternatives. Then the next aim of this chapter is to determine the weights of these criteria and evaluate the alternatives with multi-criteria decision-making methods. The best airline company for airline website according to OWA, WASPAS, WSM, and WPM methods is Alternative 1.