| Ontario to Sinop | 6,904.82 mi (11,112.23 km) |
| Ontario to Siran | 7,097.80 mi (11,422.80 km) |
| Ontario to Sirnak | 7,329.27 mi (11,795.32 km) |
| Ontario to Sirvan | 7,286.43 mi (11,726.38 km) |
| Ontario to Sivas | 7,087.16 mi (11,405.67 km) |
| Ontario to Sivasli | 7,005.27 mi (11,273.89 km) |
| Ontario to Siverek | 7,259.98 mi (11,683.80 km) |
| Ontario to Sivrice | 7,214.54 mi (11,610.69 km) |
| Ontario to Sivrihisar | 6,989.79 mi (11,248.99 km) |
| Ontario to Sogut | 6,922.75 mi (11,141.09 km) |
| Ontario to Sogutlu | 6,875.35 mi (11,064.80 km) |
| Ontario to Soke | 6,991.77 mi (11,252.16 km) |
| Ontario to Solhan | 7,210.83 mi (11,604.71 km) |
| Ontario to Soma | 6,909.93 mi (11,120.46 km) |
| Ontario to Sorgun | 7,046.61 mi (11,340.42 km) |
