Abstract
The air transport industry is a dynamic sector and operates in a dynamic environment. This situation leads to intense competition among airlines and, consequently, to a search for new methods to improve the operational performance. It is claimed that revealing the factors affecting the operational performance of airline companies might provide them with strategic advantages in such a competitive market. Therefore, this study attempts to fill a gap existant in the current literature by empirically examining the factors determining the operational performance of airline companies. The operational data for the period between 1990 and 2017 of 52 airlines, which control more than 90% of the global air passenger transport industry, were analyzed using panel data analysis. The results of the study show that the number of passengers carried, the load factor, the number of flights made by the airlines, the rate of use of the aircraft and the amount of cargo carried by the airlines significantly affect their operational performance.