| Kouvola to Siran | 1,523.38 mi (2,451.64 km) |
| Kouvola to Sirnak | 1,752.45 mi (2,820.29 km) |
| Kouvola to Sirvan | 1,709.48 mi (2,751.14 km) |
| Kouvola to Sivas | 1,524.17 mi (2,452.92 km) |
| Kouvola to Sivasli | 1,551.98 mi (2,497.68 km) |
| Kouvola to Siverek | 1,688.51 mi (2,717.39 km) |
| Kouvola to Sivrice | 1,641.96 mi (2,642.48 km) |
| Kouvola to Sivrihisar | 1,494.27 mi (2,404.80 km) |
| Kouvola to Sogut | 1,448.18 mi (2,330.61 km) |
| Kouvola to Sogutlu | 1,388.91 mi (2,235.23 km) |
| Kouvola to Soke | 1,597.55 mi (2,571.00 km) |
| Kouvola to Solhan | 1,633.91 mi (2,629.52 km) |
| Kouvola to Soma | 1,498.43 mi (2,411.49 km) |
| Kouvola to Sorgun | 1,499.14 mi (2,412.63 km) |
| Kouvola to Suhut | 1,552.23 mi (2,498.07 km) |
