| Pont-y-pwl to Sinop | 1,898.19 mi (3,054.85 km) |
| Pont-y-pwl to Siran | 2,140.52 mi (3,444.83 km) |
| Pont-y-pwl to Sirnak | 2,395.04 mi (3,854.44 km) |
| Pont-y-pwl to Sirvan | 2,353.18 mi (3,787.07 km) |
| Pont-y-pwl to Sivas | 2,068.77 mi (3,329.36 km) |
| Pont-y-pwl to Sivasli | 1,817.01 mi (2,924.20 km) |
| Pont-y-pwl to Siverek | 2,251.54 mi (3,623.50 km) |
| Pont-y-pwl to Sivrice | 2,221.20 mi (3,574.68 km) |
| Pont-y-pwl to Sivrihisar | 1,850.85 mi (2,978.66 km) |
| Pont-y-pwl to Sogut | 1,769.99 mi (2,848.52 km) |
| Pont-y-pwl to Sogutlu | 1,745.54 mi (2,809.17 km) |
| Pont-y-pwl to Soke | 1,758.94 mi (2,830.74 km) |
| Pont-y-pwl to Solhan | 2,273.22 mi (3,658.39 km) |
| Pont-y-pwl to Soma | 1,700.65 mi (2,736.93 km) |
| Pont-y-pwl to Sorgun | 1,988.71 mi (3,200.52 km) |
