| Boulogne-sur-Mer to Saint-Omer | 28.29 mi (45.53 km) |
| Boulogne-sur-Mer to Saint-Orens-de-Gameville | 495.76 mi (797.85 km) |
| Boulogne-sur-Mer to Saint-Ouen | 129.38 mi (208.22 km) |
| Boulogne-sur-Mer to Saint-Ouen-l'Aumone | 118.28 mi (190.35 km) |
| Boulogne-sur-Mer to Saint-Paul-les-Dax | 499.55 mi (803.95 km) |
| Boulogne-sur-Mer to Saint-Paul-Trois-Chateaux | 464.44 mi (747.44 km) |
| Boulogne-sur-Mer to Saint-Philbert-de-Grand-Lieu | 294.76 mi (474.36 km) |
| Boulogne-sur-Mer to Saint-Pierre-des-Corps | 233.93 mi (376.48 km) |
| Boulogne-sur-Mer to Saint-Pierre-du-Mont | 483.27 mi (777.74 km) |
| Boulogne-sur-Mer to Saint-Pierre-du-Perray | 151.23 mi (243.38 km) |
| Boulogne-sur-Mer to Saint-Pol-sur-Mer | 38.14 mi (61.38 km) |
| Boulogne-sur-Mer to Saint-Priest | 379.71 mi (611.08 km) |
| Boulogne-sur-Mer to Saint-Quentin | 95.52 mi (153.72 km) |
| Boulogne-sur-Mer to Saint-Rambert | 380.85 mi (612.92 km) |
| Boulogne-sur-Mer to Saint-Raphael | 559.39 mi (900.25 km) |
