Subsequently, Bush returned to San Jacinto in November 1944 and participated in operations in the Philippines. When San Jacinto returned to Guam, the squadron, which had suffered 50 percent casualties of its pilots, was replaced and sent to the United States. Throughout 1944, he had flown 58 combat missions for which he received the Distinguished Flying Cross, three Air Medals, and the Presidential Unit Citation awarded San Jacinto.
Because of his valuable combat experience, Bush was reassigned to Norfolk and put in a training wing for new torpedo pilots. Later, he was assigned as a naval aviator in a new torpedo squadron, VT-153. With the surrender of Japan, he was honorably discharged in September 1945 and then entered Yale University.