| Boone to Sinop | 5,721.86 mi (9,208.44 km) |
| Boone to Siran | 5,958.18 mi (9,588.77 km) |
| Boone to Sirnak | 6,215.31 mi (10,002.57 km) |
| Boone to Sirvan | 6,171.65 mi (9,932.31 km) |
| Boone to Sivas | 5,901.31 mi (9,497.24 km) |
| Boone to Sivasli | 5,671.61 mi (9,127.58 km) |
| Boone to Siverek | 6,086.72 mi (9,795.64 km) |
| Boone to Sivrice | 6,051.80 mi (9,739.43 km) |
| Boone to Sivrihisar | 5,702.74 mi (9,177.68 km) |
| Boone to Sogut | 5,622.63 mi (9,048.75 km) |
| Boone to Sogutlu | 5,594.86 mi (9,004.06 km) |
| Boone to Soke | 5,609.64 mi (9,027.84 km) |
| Boone to Solhan | 6,089.99 mi (9,800.89 km) |
| Boone to Soma | 5,554.80 mi (8,939.59 km) |
| Boone to Sorgun | 5,828.70 mi (9,380.39 km) |
