| Ottawa to Scottsboro (Alabama) | 487.68 mi (784.85 km) |
| Ottawa to Scottsdale (Arizona) | 1,363.84 mi (2,194.89 km) |
| Ottawa to Scranton (Pennsylvania) | 681.68 mi (1,097.05 km) |
| Ottawa to Seabrook (Maryland) | 652.66 mi (1,050.35 km) |
| Ottawa to Seabrook (Texas) | 884.88 mi (1,424.08 km) |
| Ottawa to Seaford (New York) | 799.82 mi (1,287.18 km) |
| Ottawa to Seagoville (Texas) | 736.16 mi (1,184.73 km) |
| Ottawa to Seal Beach (California) | 1,676.46 mi (2,698.01 km) |
| Ottawa to Searcy (Arkansas) | 450.83 mi (725.54 km) |
| Ottawa to Seaside (California) | 1,790.64 mi (2,881.75 km) |
| Ottawa to SeaTac (Washington) | 1,690.84 mi (2,721.15 km) |
| Ottawa to Seattle (Washington) | 1,692.51 mi (2,723.83 km) |
| Ottawa to Sebastian (Florida) | 1,049.86 mi (1,689.58 km) |
| Ottawa to Sebring (Florida) | 1,045.93 mi (1,683.26 km) |
| Ottawa to Secaucus (New Jersey) | 768.97 mi (1,237.54 km) |
