Patrols by U-1231
See the profile page for U-1231
| Commander | Departure | Arrival | Days | |||||
| 1. | Kpt. Hermann Lessing | 5 Oct, 1944 | Kiel | 7 Oct, 1944 | Horten | 3 days | ||
| 2. | Kpt. Hermann Lessing | 11 Oct, 1944 | Horten | 12 Oct, 1944 | Marviken | 2 days | ||
| 3. | Kpt. Hermann Lessing | 15 Oct, 1944 | Marviken | 17 Oct, 1944 | Bergen | 3 days | ||
| 4. | Kpt. Hermann Lessing | 18 Oct, 1944 | Bergen | 31 Jan, 1945 | Farsund | 106 days | P | View |
| 5. | Kpt. Hermann Lessing | 1 Feb, 1945 | Farsund | 5 Feb, 1945 | Flensburg | 5 days | ||
| 6. | Oblt. Helmut Wicke | 13 Apr, 1945 | Kiel | 20 Apr, 1945 | Horten | 8 days | ||
| 7. | Oblt. Helmut Wicke | 22 Apr, 1945 | Horten | 24 Apr, 1945 | Kristiansand | 3 days | ||
| 8. | Oblt. Helmut Wicke | 27 Apr, 1945 | Kristiansand | 14 May, 1945 | Loch Foyle, UK | 18 days | P | View |
2 War patrols (P) located. | ||||||||