| Somain to Seysses | 482.90 mi (777.15 km) |
| Somain to Sin-le-Noble | 7.38 mi (11.88 km) |
| Somain to Six-Fours-les-Plages | 515.52 mi (829.66 km) |
| Somain to Soissons | 67.45 mi (108.55 km) |
| Somain to Soisy-sous-Montmorency | 104.30 mi (167.85 km) |
| Somain to Sollies-Pont | 512.07 mi (824.10 km) |
| Somain to Sorgues | 444.98 mi (716.13 km) |
| Somain to Sotteville-les-Rouen | 117.47 mi (189.05 km) |
| Somain to Soyaux | 355.64 mi (572.35 km) |
| Somain to Stains | 105.20 mi (169.30 km) |
| Somain to Stiring-Wendel | 181.36 mi (291.87 km) |
| Somain to Strasbourg | 234.94 mi (378.11 km) |
| Somain to Sucy-en-Brie | 114.84 mi (184.81 km) |
| Somain to Suresnes | 113.21 mi (182.19 km) |
| Somain to Talant | 222.98 mi (358.84 km) |
