| Middlesbrough to Sinop | 1,855.41 mi (2,986.00 km) |
| Middlesbrough to Siran | 2,094.73 mi (3,371.14 km) |
| Middlesbrough to Sirnak | 2,351.64 mi (3,784.59 km) |
| Middlesbrough to Sirvan | 2,308.60 mi (3,715.33 km) |
| Middlesbrough to Sivas | 2,032.87 mi (3,271.59 km) |
| Middlesbrough to Sivasli | 1,818.49 mi (2,926.58 km) |
| Middlesbrough to Siverek | 2,217.99 mi (3,569.51 km) |
| Middlesbrough to Sivrice | 2,184.09 mi (3,514.96 km) |
| Middlesbrough to Sivrihisar | 1,838.30 mi (2,958.45 km) |
| Middlesbrough to Sogut | 1,759.74 mi (2,832.03 km) |
| Middlesbrough to Sogutlu | 1,728.25 mi (2,781.35 km) |
| Middlesbrough to Soke | 1,775.54 mi (2,857.46 km) |
| Middlesbrough to Solhan | 2,227.39 mi (3,584.63 km) |
| Middlesbrough to Soma | 1,707.51 mi (2,747.96 km) |
| Middlesbrough to Sorgun | 1,959.25 mi (3,153.11 km) |
