In line with the post-COVID-19 climate crisis, interest in corporate sustainability management is growing worldwide. In line with this, in the field of international aviation, the International Civil Aviation Organization (ICAO) is showing active movements such as developing CORSIA (International Aviation Carbon Offset System) to jointly respond to the climate change system. In this situation, domestic airlines are also coming up with various countermeasures to respond quickly, and we want to find out the relationship between these activities and loyalty, which is closely related to the customer's corporate trust in the airline and the behavioral intention to continue using the airline. Therefore, in this study, a survey was conducted over a total of 14 days from January 15, 2023 to identify the factors that affect the establishment of marketing strategy plans related to eco-friendly management activities of airlines. Based on the results of this study, among the sub-factors of airlines' eco-friendly management activities, eco-friendly in-flight service, eco-friendly education, eco-friendly campaigns, and eco-friendly operation all affect corporate trust, and among them, it was found that eco-friendly in-flight service had the greatest impact, and it was found that In the results of the impact, it was confirmed that it affects all factors except for eco-friendly flight and has the greatest impact on eco-friendly in-flight service. In addition, it was confirmed that the corporate trust formed by the positive perception of the airline's eco-friendly management activities has an effect on the loyalty that can be confirmed by the continuous purchase intention.