| Opava to Siran | 1,228.73 mi (1,977.45 km) |
| Opava to Sirnak | 1,485.27 mi (2,390.31 km) |
| Opava to Sirvan | 1,442.48 mi (2,321.45 km) |
| Opava to Sivas | 1,165.73 mi (1,876.07 km) |
| Opava to Sivasli | 980.68 mi (1,578.26 km) |
| Opava to Siverek | 1,350.96 mi (2,174.16 km) |
| Opava to Sivrice | 1,316.90 mi (2,119.35 km) |
| Opava to Sivrihisar | 983.64 mi (1,583.01 km) |
| Opava to Sogut | 908.56 mi (1,462.19 km) |
| Opava to Sogutlu | 870.75 mi (1,401.34 km) |
| Opava to Soke | 964.37 mi (1,552.00 km) |
| Opava to Solhan | 1,361.54 mi (2,191.19 km) |
| Opava to Soma | 881.47 mi (1,418.59 km) |
| Opava to Sorgun | 1,093.37 mi (1,759.60 km) |
| Opava to Suhut | 1,003.52 mi (1,615.01 km) |
