| Gourock to Sesena | 1,096.33 mi (1,764.37 km) |
| Gourock to Sestao | 877.22 mi (1,411.75 km) |
| Gourock to Sevilla | 1,294.15 mi (2,082.73 km) |
| Gourock to Sevilla La Nueva | 1,078.89 mi (1,736.30 km) |
| Gourock to Silla | 1,164.01 mi (1,873.29 km) |
| Gourock to Silleda | 928.29 mi (1,493.93 km) |
| Gourock to Sitges | 1,059.92 mi (1,705.77 km) |
| Gourock to Socuellamos | 1,154.85 mi (1,858.56 km) |
| Gourock to Soller | 1,169.80 mi (1,882.60 km) |
| Gourock to Solsona | 1,005.35 mi (1,617.96 km) |
| Gourock to Son Servera | 1,188.67 mi (1,912.97 km) |
| Gourock to Sonseca | 1,123.73 mi (1,808.46 km) |
| Gourock to Sopelana | 872.47 mi (1,404.10 km) |
| Gourock to Soria | 985.89 mi (1,586.64 km) |
| Gourock to Suances | 865.75 mi (1,393.29 km) |
