| Conwy to Saint-Nazaire | 421.06 mi (677.64 km) |
| Conwy to Saint-Omer | 312.38 mi (502.72 km) |
| Conwy to Saint-Orens-de-Gameville | 715.27 mi (1,151.12 km) |
| Conwy to Saint-Ouen | 402.96 mi (648.50 km) |
| Conwy to Saint-Ouen-l'Aumone | 389.48 mi (626.81 km) |
| Conwy to Saint-Paul-les-Dax | 672.14 mi (1,081.71 km) |
| Conwy to Saint-Paul-Trois-Chateaux | 729.49 mi (1,173.99 km) |
| Conwy to Saint-Philbert-de-Grand-Lieu | 442.19 mi (711.63 km) |
| Conwy to Saint-Pierre-des-Corps | 453.63 mi (730.04 km) |
| Conwy to Saint-Pierre-du-Mont | 666.51 mi (1,072.65 km) |
| Conwy to Saint-Pierre-du-Perray | 423.69 mi (681.87 km) |
| Conwy to Saint-Pol-sur-Mer | 304.20 mi (489.56 km) |
| Conwy to Saint-Priest | 654.42 mi (1,053.19 km) |
| Conwy to Saint-Quentin | 386.52 mi (622.05 km) |
| Conwy to Saint-Rambert | 647.74 mi (1,042.44 km) |
