| Somain to Saint-Hilaire-de-Riez | 346.65 mi (557.88 km) |
| Somain to Saint-Jacques-de-la-Lande | 273.69 mi (440.46 km) |
| Somain to Saint-Jean | 469.85 mi (756.15 km) |
| Somain to Saint-Jean-d'Illac | 427.39 mi (687.82 km) |
| Somain to Saint-Jean-de-Braye | 178.96 mi (288.01 km) |
| Somain to Saint-Jean-de-la-Ruelle | 180.46 mi (290.43 km) |
| Somain to Saint-Jean-de-Luz | 534.66 mi (860.45 km) |
| Somain to Saint-Jean-de-Monts | 346.63 mi (557.84 km) |
| Somain to Saint-Jean-de-Vedas | 469.23 mi (755.15 km) |
| Somain to Saint-Jean-le-Blanc | 181.15 mi (291.54 km) |
| Somain to Saint-Julien-en-Genevois | 318.35 mi (512.34 km) |
| Somain to Saint-Junien | 327.74 mi (527.44 km) |
| Somain to Saint-Laurent-de-la-Salanque | 524.18 mi (843.58 km) |
| Somain to Saint-Laurent-du-Var | 497.33 mi (800.38 km) |
| Somain to Saint-Leu-la-Foret | 103.51 mi (166.59 km) |
