| Southborough to Santa Ursula | 1,795.60 mi (2,889.74 km) |
| Southborough to Santander | 564.73 mi (908.85 km) |
| Southborough to Santany | 827.32 mi (1,331.44 km) |
| Southborough to Santiago de Compostela | 705.79 mi (1,135.85 km) |
| Southborough to Santiago del Teide | 1,811.89 mi (2,915.95 km) |
| Southborough to Santiponce | 997.34 mi (1,605.07 km) |
| Southborough to Santomera | 907.26 mi (1,460.09 km) |
| Southborough to Santona | 560.90 mi (902.68 km) |
| Southborough to Santurce-Antiguo | 562.48 mi (905.22 km) |
| Southborough to Sarria | 681.90 mi (1,097.41 km) |
| Southborough to Sauzal | 1,790.76 mi (2,881.95 km) |
| Southborough to Sedavi | 811.26 mi (1,305.59 km) |
| Southborough to Segorbe | 782.14 mi (1,258.74 km) |
| Southborough to Segovia | 735.86 mi (1,184.25 km) |
| Southborough to Senmanat | 665.86 mi (1,071.60 km) |
