| Ottawa to Shoreview (Minnesota) | 336.73 mi (541.92 km) |
| Ottawa to Shorewood (Illinois) | 33.58 mi (54.04 km) |
| Ottawa to Shorewood (Wisconsin) | 129.21 mi (207.94 km) |
| Ottawa to Short Hills (New Jersey) | 755.80 mi (1,216.34 km) |
| Ottawa to Short Pump (Virginia) | 649.17 mi (1,044.73 km) |
| Ottawa to Show Low (Arizona) | 1,252.99 mi (2,016.49 km) |
| Ottawa to Shreveport (Louisiana) | 672.50 mi (1,082.28 km) |
| Ottawa to Sicklerville (New Jersey) | 733.87 mi (1,181.05 km) |
| Ottawa to Sidney (Ohio) | 254.48 mi (409.55 km) |
| Ottawa to Sierra Madre (California) | 1,662.64 mi (2,675.77 km) |
| Ottawa to Sierra Vista (Arizona) | 1,367.00 mi (2,199.97 km) |
| Ottawa to Sierra Vista Southeast (Arizona) | 1,366.72 mi (2,199.53 km) |
| Ottawa to Signal Hill (California) | 1,679.90 mi (2,703.54 km) |
| Ottawa to Sikeston (Missouri) | 311.54 mi (501.37 km) |
| Ottawa to Siloam Springs (Arkansas) | 471.06 mi (758.10 km) |
