This study aims to find out the effect of Garuda Miles Program to the customers’ loyalty. The research was using hypothesis testing. The method used was a simple linear regression analysis with a total sample of 30 people. The result of the research shows that the effect of Garuda Miles Program to the customers’ loyalty with regression equation y is 6.86 + 0.8x. The Garuda Miles Program has a very strong and positive influence on customers’ loyalty shown by r = 0.81. Customers’ loyalty has been affected by Garuda Miles program of 65.61% (coefficient determination), while the remaining 35.39% is determined by other factors. The result of the hypothesis test is t –count > t-table (12.59> 2,048). Therefore, there is a significant influence of Garuda Miles Program to the customers’ loyalty.