| Opwijk to Siran | 1,824.80 mi (2,936.73 km) |
| Opwijk to Sirnak | 2,079.21 mi (3,346.17 km) |
| Opwijk to Sirvan | 2,037.38 mi (3,278.85 km) |
| Opwijk to Sivas | 1,753.00 mi (2,821.18 km) |
| Opwijk to Sivasli | 1,507.84 mi (2,426.63 km) |
| Opwijk to Siverek | 1,935.92 mi (3,115.57 km) |
| Opwijk to Sivrice | 1,905.42 mi (3,066.47 km) |
| Opwijk to Sivrihisar | 1,537.86 mi (2,474.95 km) |
| Opwijk to Sogut | 1,457.41 mi (2,345.48 km) |
| Opwijk to Sogutlu | 1,431.50 mi (2,303.77 km) |
| Opwijk to Soke | 1,455.63 mi (2,342.62 km) |
| Opwijk to Solhan | 1,957.48 mi (3,150.25 km) |
| Opwijk to Soma | 1,393.17 mi (2,242.09 km) |
| Opwijk to Sorgun | 1,673.30 mi (2,692.91 km) |
| Opwijk to Suhut | 1,539.80 mi (2,478.06 km) |
