| Ottawa to Savannah (Georgia) | 770.38 mi (1,239.81 km) |
| Ottawa to Sayreville (New Jersey) | 758.86 mi (1,221.27 km) |
| Ottawa to Sayville (New York) | 820.18 mi (1,319.95 km) |
| Ottawa to Scaggsville (Maryland) | 647.48 mi (1,042.02 km) |
| Ottawa to Scarsdale (New York) | 782.09 mi (1,258.65 km) |
| Ottawa to Schaumburg (Illinois) | 60.36 mi (97.14 km) |
| Ottawa to Schenectady (New York) | 769.52 mi (1,238.42 km) |
| Ottawa to Schererville (Indiana) | 72.16 mi (116.14 km) |
| Ottawa to Schertz (Texas) | 970.78 mi (1,562.31 km) |
| Ottawa to Schiller Park (Illinois) | 64.62 mi (104.00 km) |
| Ottawa to Schofield Barracks (Hawaii) | 4,192.53 mi (6,747.22 km) |
| Ottawa to Scotchtown (New York) | 748.38 mi (1,204.40 km) |
| Ottawa to Scottdale (Georgia) | 578.83 mi (931.54 km) |
| Ottawa to Scotts Valley (California) | 1,790.20 mi (2,881.04 km) |
| Ottawa to Scottsbluff (Nebraska) | 766.24 mi (1,233.14 km) |
