Staff Sergeant Fluke was the tail gunner of a B-26B Invader bomber with the 8th Bomber Squadron, 3rd Bomber Group. On 2 July 1950, while on a combat mission, the aircraft ran out of fuel and was ditched along the Korean Coast near Fujae-shima, Korea, killing him. His remains were not recovered. His name is inscribed on the Courts of the Missing at the Honolulu Memorial.

Fluke was awarded the Air Medal, the Purple Heart, the Korean Service Medal, the United Nations Service Medal, the National Defense Service Medal, the Korean Presidential Unit Citation and the Republic of Korea War Service Medal.