Wolfpacks U-309 was part of
U-309 operated with the following Wolfpacks during its career:
Rossbach (6 Oct 1943 - 9 Oct 1943)
Schlieffen (14 Oct 1943 - 22 Oct 1943)
Siegfried (22 Oct 1943 - 26 Oct 1943)
Rügen 7 (28 Dec 1943 - 2 Jan 1944)
Rügen 6 (2 Jan 1944 - 7 Jan 1944)
Rügen (7 Jan 1944 - 26 Jan 1944)
Stürmer (26 Jan 1944 - 3 Feb 1944)