| Sieradz to Siran | 1,250.26 mi (2,012.09 km) |
| Sieradz to Sirnak | 1,507.40 mi (2,425.93 km) |
| Sieradz to Sirvan | 1,463.81 mi (2,355.77 km) |
| Sieradz to Sivas | 1,197.15 mi (1,926.62 km) |
| Sieradz to Sivasli | 1,049.20 mi (1,688.52 km) |
| Sieradz to Siverek | 1,382.68 mi (2,225.20 km) |
| Sieradz to Sivrice | 1,345.75 mi (2,165.78 km) |
| Sieradz to Sivrihisar | 1,039.80 mi (1,673.39 km) |
| Sieradz to Sogut | 968.81 mi (1,559.14 km) |
| Sieradz to Sogutlu | 925.39 mi (1,489.28 km) |
| Sieradz to Soke | 1,045.48 mi (1,682.54 km) |
| Sieradz to Solhan | 1,382.19 mi (2,224.42 km) |
| Sieradz to Soma | 957.61 mi (1,541.13 km) |
| Sieradz to Sorgun | 1,131.76 mi (1,821.39 km) |
| Sieradz to Suhut | 1,067.87 mi (1,718.57 km) |
