The existing systems sustained with the investments made require more automation and digital transformation with the continuous advancement of technology. The aviation industry is a sector that is open to more automation and digital transformation, mainly because of the intense competition and the analysis of a large variety of data. The long duration of operations in current airline processes and some process flows cause customer dissatisfaction and cost increase. In this study, the boarding process, which is one of the operational processes of airline transportation and is open to improvement, was discussed. The classical boarding process has been redesigned using Internet of Things technology a model called Boarding 4.0 was created. With Boarding 4.0, it is aimed to design a process where passengers can take their time before boarding more efficiently. In the study, the sub-processes of the Boarding 4.0 model, other processes that the sub-processes interact with, their activities, and data exchange passenger movements during the activities are explained in detail. Compared to the classical boarding process and Boarding 4.0 with the fuzzy ahp technique, it has been shown that boarding 4.0 is more advantageous and passenger movement times can be reduced during boarding. As a result of the evaluation made with the fuzzy ahp, it was determined that boarding 4.0 is more advantageous than the classical boarding process. In addition, when the total time of the sub-activities in the boarding process is calculated, boarding activities for a passenger take 50 min with the classic boarding process and 20 min with Boarding 4.0. Thus, when Boarding 4.0 is used, the passenger gains 30 min. Furthermore, when the calculation is made concerning the airport's current capacity, two passengers are hosted with the classical boarding process, while five passengers are hosted with Boarding 4.0. This acquisition is significant for airports in terms of efficient use of resources.