| Gourock to Sereflikochisar | 2,102.41 mi (3,383.50 km) |
| Gourock to Serik | 2,118.47 mi (3,409.34 km) |
| Gourock to Serinhisar | 2,018.57 mi (3,248.58 km) |
| Gourock to Serinyol | 2,331.96 mi (3,752.92 km) |
| Gourock to Seydisehir | 2,118.97 mi (3,410.16 km) |
| Gourock to Seyhan | 2,268.21 mi (3,650.33 km) |
| Gourock to Seyitgazi | 1,972.91 mi (3,175.09 km) |
| Gourock to Siirt | 2,468.58 mi (3,972.80 km) |
| Gourock to Sile | 1,847.16 mi (2,972.72 km) |
| Gourock to Silifke | 2,248.64 mi (3,618.84 km) |
| Gourock to Silivri | 1,802.57 mi (2,900.95 km) |
| Gourock to Silopi | 2,522.14 mi (4,059.00 km) |
| Gourock to Simav | 1,929.87 mi (3,105.82 km) |
| Gourock to Sinanpasa | 1,992.40 mi (3,206.45 km) |
| Gourock to Sindirgi | 1,893.03 mi (3,046.54 km) |
