| Momchilgrad to Somma Lombardo | 882.12 mi (1,419.63 km) |
| Momchilgrad to Somma Vesuviana | 572.21 mi (920.89 km) |
| Momchilgrad to Sommacampagna | 776.43 mi (1,249.54 km) |
| Momchilgrad to Sona | 777.81 mi (1,251.76 km) |
| Momchilgrad to Sondrio | 836.46 mi (1,346.15 km) |
| Momchilgrad to Sora | 609.10 mi (980.25 km) |
| Momchilgrad to Sorbolo | 786.67 mi (1,266.02 km) |
| Momchilgrad to Soresina | 821.35 mi (1,321.84 km) |
| Momchilgrad to Sorisole | 838.20 mi (1,348.96 km) |
| Momchilgrad to Sorrento | 578.13 mi (930.41 km) |
| Momchilgrad to Sorso | 875.97 mi (1,409.74 km) |
| Momchilgrad to Sortino | 630.88 mi (1,015.30 km) |
| Momchilgrad to Soverato Marina | 507.93 mi (817.44 km) |
| Momchilgrad to Sovicille | 732.68 mi (1,179.13 km) |
| Momchilgrad to Spello | 658.74 mi (1,060.15 km) |
