| Opatija to Siran | 1,302.72 mi (2,096.52 km) |
| Opatija to Sirnak | 1,545.84 mi (2,487.79 km) |
| Opatija to Sirvan | 1,507.09 mi (2,425.43 km) |
| Opatija to Sivas | 1,214.24 mi (1,954.13 km) |
| Opatija to Sivasli | 919.50 mi (1,479.79 km) |
| Opatija to Siverek | 1,388.62 mi (2,234.77 km) |
| Opatija to Sivrice | 1,364.85 mi (2,196.51 km) |
| Opatija to Sivrihisar | 966.41 mi (1,555.28 km) |
| Opatija to Sogut | 884.36 mi (1,423.23 km) |
| Opatija to Sogutlu | 869.91 mi (1,399.99 km) |
| Opatija to Soke | 854.99 mi (1,375.97 km) |
| Opatija to Solhan | 1,431.55 mi (2,303.86 km) |
| Opatija to Soma | 800.58 mi (1,288.41 km) |
| Opatija to Sorgun | 1,125.32 mi (1,811.03 km) |
| Opatija to Suhut | 955.67 mi (1,538.00 km) |
