| Billings to Sinop | 5,971.24 mi (9,609.78 km) |
| Billings to Siran | 6,169.32 mi (9,928.55 km) |
| Billings to Sirnak | 6,405.42 mi (10,308.52 km) |
| Billings to Sirvan | 6,362.10 mi (10,238.81 km) |
| Billings to Sivas | 6,154.49 mi (9,904.69 km) |
| Billings to Sivasli | 6,064.35 mi (9,759.63 km) |
| Billings to Siverek | 6,329.57 mi (10,186.46 km) |
| Billings to Sivrice | 6,284.77 mi (10,114.35 km) |
| Billings to Sivrihisar | 6,050.38 mi (9,737.15 km) |
| Billings to Sogut | 5,982.65 mi (9,628.14 km) |
| Billings to Sogutlu | 5,935.85 mi (9,552.83 km) |
| Billings to Soke | 6,050.19 mi (9,736.84 km) |
| Billings to Solhan | 6,285.18 mi (10,115.01 km) |
| Billings to Soma | 5,968.51 mi (9,605.39 km) |
| Billings to Sorgun | 6,111.29 mi (9,835.17 km) |
