| Sligo to Settimo Torinese | 957.99 mi (1,541.74 km) |
| Sligo to Seveso | 979.62 mi (1,576.54 km) |
| Sligo to Sezze | 1,322.66 mi (2,128.61 km) |
| Sligo to Siano | 1,414.57 mi (2,276.54 km) |
| Sligo to Siena | 1,170.01 mi (1,882.95 km) |
| Sligo to Signa | 1,138.67 mi (1,832.51 km) |
| Sligo to Silea | 1,092.36 mi (1,757.99 km) |
| Sligo to Silvi Paese | 1,305.37 mi (2,100.78 km) |
| Sligo to Sinalunga | 1,188.92 mi (1,913.39 km) |
| Sligo to Siniscola | 1,264.25 mi (2,034.62 km) |
| Sligo to Sinnai | 1,322.36 mi (2,128.13 km) |
| Sligo to Siracusa | 1,636.56 mi (2,633.79 km) |
| Sligo to Solaro | 979.11 mi (1,575.73 km) |
| Sligo to Soliera | 1,085.66 mi (1,747.20 km) |
| Sligo to Solofra | 1,418.33 mi (2,282.58 km) |
