| Middlesex to Sinop | 5,235.69 mi (8,426.02 km) |
| Middlesex to Siran | 5,473.00 mi (8,807.95 km) |
| Middlesex to Sirnak | 5,730.19 mi (9,221.85 km) |
| Middlesex to Sirvan | 5,686.69 mi (9,151.84 km) |
| Middlesex to Sivas | 5,414.34 mi (8,713.54 km) |
| Middlesex to Sivasli | 5,181.01 mi (8,338.03 km) |
| Middlesex to Siverek | 5,599.60 mi (9,011.68 km) |
| Middlesex to Sivrice | 5,565.21 mi (8,956.35 km) |
| Middlesex to Sivrihisar | 5,213.03 mi (8,389.56 km) |
| Middlesex to Sogut | 5,132.75 mi (8,260.37 km) |
| Middlesex to Sogutlu | 5,105.54 mi (8,216.58 km) |
| Middlesex to Soke | 5,118.59 mi (8,237.57 km) |
| Middlesex to Solhan | 5,605.11 mi (9,020.55 km) |
| Middlesex to Soma | 5,064.03 mi (8,149.76 km) |
| Middlesex to Sorgun | 5,340.76 mi (8,595.12 km) |
