| Walthamstow to Sinop | 1,768.64 mi (2,846.35 km) |
| Walthamstow to Siran | 2,010.91 mi (3,236.25 km) |
| Walthamstow to Sirnak | 2,265.55 mi (3,646.06 km) |
| Walthamstow to Sirvan | 2,223.64 mi (3,578.61 km) |
| Walthamstow to Sivas | 1,939.58 mi (3,121.45 km) |
| Walthamstow to Sivasli | 1,691.87 mi (2,722.80 km) |
| Walthamstow to Siverek | 2,122.55 mi (3,415.91 km) |
| Walthamstow to Sivrice | 2,091.98 mi (3,366.72 km) |
| Walthamstow to Sivrihisar | 1,723.68 mi (2,774.00 km) |
| Walthamstow to Sogut | 1,643.05 mi (2,644.23 km) |
| Walthamstow to Sogutlu | 1,617.73 mi (2,603.49 km) |
| Walthamstow to Soke | 1,636.59 mi (2,633.84 km) |
| Walthamstow to Solhan | 2,143.63 mi (3,449.84 km) |
| Walthamstow to Soma | 1,576.31 mi (2,536.82 km) |
| Walthamstow to Sorgun | 1,859.92 mi (2,993.26 km) |
