| Radviliskis to Sestu | 1,318.56 mi (2,122.02 km) |
| Radviliskis to Settimo Torinese | 1,007.80 mi (1,621.90 km) |
| Radviliskis to Seveso | 939.65 mi (1,512.22 km) |
| Radviliskis to Sezze | 1,095.00 mi (1,762.23 km) |
| Radviliskis to Siano | 1,111.17 mi (1,788.26 km) |
| Radviliskis to Siena | 1,018.26 mi (1,638.74 km) |
| Radviliskis to Signa | 995.56 mi (1,602.20 km) |
| Radviliskis to Silea | 854.20 mi (1,374.71 km) |
| Radviliskis to Silvi Paese | 1,007.65 mi (1,621.66 km) |
| Radviliskis to Sinalunga | 1,015.18 mi (1,633.77 km) |
| Radviliskis to Siniscola | 1,225.32 mi (1,971.96 km) |
| Radviliskis to Sinnai | 1,315.82 mi (2,117.60 km) |
| Radviliskis to Siracusa | 1,350.39 mi (2,173.24 km) |
| Radviliskis to Solaro | 942.76 mi (1,517.23 km) |
| Radviliskis to Soliera | 942.95 mi (1,517.52 km) |
