VT-8 flew from "Saratoga" during the initial stages of the Guadalcanal Campaign. In the Battle of the Eastern Solomons, VT-8 assisted in sinking the light carrier . When "Saratoga" was torpedoed by a Japanese submarine, the squadron was assigned to Henderson Field on Guadalcanal, where it served as part of the Cactus Air Force. VTR-8 fought there to the point where all aircraft were disabled, and then operated as a single-aircraft unit, as one plane at a time was put back into service by salvaging parts (often themselves damaged) from other planes. VT-8 pilots and air crew also participated in the ground defense of Henderson Field, assisting to fend off Japanese infantry attacks on 24–26 October 1942. VT-8's last official mission was flown on 15 November 1942, against damaged transports from the last major Japanese convoy to the island. After leaving Guadalcanal and returning to the United States, the squadron was disbanded.