| Hertford to Seysses | 576.98 mi (928.56 km) |
| Hertford to Sin-le-Noble | 170.24 mi (273.97 km) |
| Hertford to Six-Fours-les-Plages | 660.46 mi (1,062.90 km) |
| Hertford to Soissons | 223.77 mi (360.13 km) |
| Hertford to Soisy-sous-Montmorency | 220.49 mi (354.84 km) |
| Hertford to Sollies-Pont | 659.14 mi (1,060.78 km) |
| Hertford to Somain | 176.41 mi (283.91 km) |
| Hertford to Sorgues | 584.59 mi (940.80 km) |
| Hertford to Sotteville-les-Rouen | 172.71 mi (277.95 km) |
| Hertford to Soyaux | 425.54 mi (684.85 km) |
| Hertford to Stains | 224.56 mi (361.40 km) |
| Hertford to Stiring-Wendel | 356.17 mi (573.20 km) |
| Hertford to Strasbourg | 410.83 mi (661.17 km) |
| Hertford to Sucy-en-Brie | 238.54 mi (383.89 km) |
| Hertford to Suresnes | 226.15 mi (363.95 km) |
