| Castelfidardo to Sangeorz-Bai | 602.90 mi (970.27 km) |
| Castelfidardo to Sannicolau Mare | 390.22 mi (628.00 km) |
| Castelfidardo to Santana | 437.04 mi (703.35 km) |
| Castelfidardo to Satu Mare | 540.87 mi (870.44 km) |
| Castelfidardo to Scobinti | 702.23 mi (1,130.13 km) |
| Castelfidardo to Scornicesti | 551.63 mi (887.76 km) |
| Castelfidardo to Sebes | 521.08 mi (838.60 km) |
| Castelfidardo to Seini | 555.44 mi (893.90 km) |
| Castelfidardo to Sfantu-Gheorghe | 623.28 mi (1,003.07 km) |
| Castelfidardo to Sibiu | 545.28 mi (877.54 km) |
| Castelfidardo to Sighetu Marmatiei | 586.16 mi (943.33 km) |
| Castelfidardo to Sighisoara | 582.21 mi (936.97 km) |
| Castelfidardo to Simeria | 493.11 mi (793.58 km) |
| Castelfidardo to Sinaia | 606.11 mi (975.44 km) |
| Castelfidardo to Slatina | 541.87 mi (872.05 km) |
