| Dorchester to Saint-Nazaire | 238.02 mi (383.06 km) |
| Dorchester to Saint-Omer | 205.41 mi (330.58 km) |
| Dorchester to Saint-Orens-de-Gameville | 528.81 mi (851.03 km) |
| Dorchester to Saint-Ouen | 246.43 mi (396.60 km) |
| Dorchester to Saint-Ouen-l'Aumone | 233.02 mi (375.00 km) |
| Dorchester to Saint-Paul-les-Dax | 487.27 mi (784.19 km) |
| Dorchester to Saint-Paul-Trois-Chateaux | 553.05 mi (890.05 km) |
| Dorchester to Saint-Philbert-de-Grand-Lieu | 256.85 mi (413.36 km) |
| Dorchester to Saint-Pierre-des-Corps | 270.68 mi (435.62 km) |
| Dorchester to Saint-Pierre-du-Mont | 480.53 mi (773.34 km) |
| Dorchester to Saint-Pierre-du-Perray | 264.01 mi (424.89 km) |
| Dorchester to Saint-Pol-sur-Mer | 209.54 mi (337.22 km) |
| Dorchester to Saint-Priest | 485.08 mi (780.66 km) |
| Dorchester to Saint-Quentin | 259.61 mi (417.80 km) |
| Dorchester to Saint-Rambert | 473.71 mi (762.36 km) |
