RCAF Detachment Gananoque was a relief landing field for the Royal Air Force's No.

31 Service Flying Training School (SFTS) located at RCAF Station Kingston during the Second World War.

Gananoque consisted of a triangle-shaped runway pattern, one hangar, and a control tower.

The airfield was constructed in a typical BCATP wartime pattern, with three runways formed in a triangle.

In approximately 1942 the aerodrome was listed at 44°24′N 76°15′W / 44.400°N 76.250°W / 44.400; -76.250 with a variation of 12 degrees west and elevation of 395 ft (120 m).