| Gourock to Suhut | 2,014.31 mi (3,241.72 km) |
| Gourock to Sulakyurt | 2,048.69 mi (3,297.05 km) |
| Gourock to Sultanbeyli | 1,844.60 mi (2,968.60 km) |
| Gourock to Sultandagi | 2,038.98 mi (3,281.42 km) |
| Gourock to Sultanhani | 2,137.81 mi (3,440.47 km) |
| Gourock to Sultanhisar | 1,963.20 mi (3,159.47 km) |
| Gourock to Suluova | 2,088.43 mi (3,361.00 km) |
| Gourock to Sumbas | 2,270.43 mi (3,653.90 km) |
| Gourock to Sungurlu | 2,073.11 mi (3,336.36 km) |
| Gourock to Surmene | 2,254.33 mi (3,628.00 km) |
| Gourock to Suruc | 2,383.29 mi (3,835.53 km) |
| Gourock to Susehri | 2,212.92 mi (3,561.35 km) |
| Gourock to Susurluk | 1,857.86 mi (2,989.94 km) |
| Gourock to Susuz | 2,376.71 mi (3,824.94 km) |
| Gourock to Sutculer | 2,083.84 mi (3,353.62 km) |
