| Drogheda to Settimo Torinese | 865.57 mi (1,393.00 km) |
| Drogheda to Seveso | 885.90 mi (1,425.71 km) |
| Drogheda to Sezze | 1,229.65 mi (1,978.93 km) |
| Drogheda to Siano | 1,321.16 mi (2,126.20 km) |
| Drogheda to Siena | 1,076.77 mi (1,732.90 km) |
| Drogheda to Signa | 1,045.24 mi (1,682.15 km) |
| Drogheda to Silea | 997.83 mi (1,605.85 km) |
| Drogheda to Silvi Paese | 1,211.38 mi (1,949.52 km) |
| Drogheda to Sinalunga | 1,095.54 mi (1,763.10 km) |
| Drogheda to Siniscola | 1,174.71 mi (1,890.51 km) |
| Drogheda to Sinnai | 1,234.70 mi (1,987.05 km) |
| Drogheda to Siracusa | 1,544.92 mi (2,486.31 km) |
| Drogheda to Solaro | 885.44 mi (1,424.97 km) |
| Drogheda to Soliera | 991.74 mi (1,596.05 km) |
| Drogheda to Solofra | 1,324.83 mi (2,132.11 km) |
