| Halstead to Sinop | 1,744.40 mi (2,807.34 km) |
| Halstead to Siran | 1,986.40 mi (3,196.79 km) |
| Halstead to Sirnak | 2,241.53 mi (3,607.39 km) |
| Halstead to Sirvan | 2,199.42 mi (3,539.63 km) |
| Halstead to Sivas | 1,916.49 mi (3,084.29 km) |
| Halstead to Sivasli | 1,674.63 mi (2,695.05 km) |
| Halstead to Siverek | 2,099.92 mi (3,379.50 km) |
| Halstead to Sivrice | 2,068.80 mi (3,329.41 km) |
| Halstead to Sivrihisar | 1,704.12 mi (2,742.52 km) |
| Halstead to Sogut | 1,623.81 mi (2,613.27 km) |
| Halstead to Sogutlu | 1,597.33 mi (2,570.65 km) |
| Halstead to Soke | 1,621.95 mi (2,610.28 km) |
| Halstead to Solhan | 2,119.19 mi (3,410.50 km) |
| Halstead to Soma | 1,559.92 mi (2,510.45 km) |
| Halstead to Sorgun | 1,837.77 mi (2,957.60 km) |
