| Hertford to Suhut | 1,731.67 mi (2,786.85 km) |
| Hertford to Sulakyurt | 1,789.38 mi (2,879.73 km) |
| Hertford to Sultanbeyli | 1,570.88 mi (2,528.09 km) |
| Hertford to Sultandagi | 1,759.27 mi (2,831.28 km) |
| Hertford to Sultanhani | 1,866.36 mi (3,003.61 km) |
| Hertford to Sultanhisar | 1,667.29 mi (2,683.24 km) |
| Hertford to Suluova | 1,842.01 mi (2,964.44 km) |
| Hertford to Sumbas | 2,005.06 mi (3,226.83 km) |
| Hertford to Sungurlu | 1,816.70 mi (2,923.70 km) |
| Hertford to Surmene | 2,027.60 mi (3,263.11 km) |
| Hertford to Suruc | 2,125.42 mi (3,420.54 km) |
| Hertford to Susehri | 1,972.57 mi (3,174.55 km) |
| Hertford to Susurluk | 1,572.72 mi (2,531.04 km) |
| Hertford to Susuz | 2,161.74 mi (3,478.98 km) |
| Hertford to Sutculer | 1,797.65 mi (2,893.03 km) |
