| Swallownest to Sestu | 1,088.76 mi (1,752.19 km) |
| Swallownest to Settimo Torinese | 699.83 mi (1,126.27 km) |
| Swallownest to Seveso | 709.06 mi (1,141.11 km) |
| Swallownest to Sezze | 1,056.21 mi (1,699.80 km) |
| Swallownest to Siano | 1,144.10 mi (1,841.24 km) |
| Swallownest to Siena | 902.53 mi (1,452.48 km) |
| Swallownest to Signa | 869.68 mi (1,399.61 km) |
| Swallownest to Silea | 808.20 mi (1,300.68 km) |
| Swallownest to Silvi Paese | 1,029.47 mi (1,656.77 km) |
| Swallownest to Sinalunga | 920.00 mi (1,480.60 km) |
| Swallownest to Siniscola | 1,022.39 mi (1,645.38 km) |
| Swallownest to Sinnai | 1,090.93 mi (1,755.68 km) |
| Swallownest to Siracusa | 1,378.72 mi (2,218.83 km) |
| Swallownest to Solaro | 709.05 mi (1,141.10 km) |
| Swallownest to Soliera | 811.91 mi (1,306.64 km) |
