| Greenock to Santa Ursula | 1,988.02 mi (3,199.40 km) |
| Greenock to Santander | 863.83 mi (1,390.19 km) |
| Greenock to Santany | 1,202.21 mi (1,934.77 km) |
| Greenock to Santiago de Compostela | 918.69 mi (1,478.49 km) |
| Greenock to Santiago del Teide | 2,001.40 mi (3,220.94 km) |
| Greenock to Santiponce | 1,280.62 mi (2,060.96 km) |
| Greenock to Santomera | 1,247.85 mi (2,008.22 km) |
| Greenock to Santona | 866.19 mi (1,394.00 km) |
| Greenock to Santurce-Antiguo | 875.31 mi (1,408.67 km) |
| Greenock to Sarria | 917.35 mi (1,476.33 km) |
| Greenock to Sauzal | 1,983.55 mi (3,192.21 km) |
| Greenock to Sedavi | 1,159.08 mi (1,865.35 km) |
| Greenock to Segorbe | 1,129.22 mi (1,817.31 km) |
| Greenock to Segovia | 1,036.94 mi (1,668.80 km) |
| Greenock to Senmanat | 1,038.26 mi (1,670.92 km) |
