| Ottawa to Wanaque (New Jersey) | 755.11 mi (1,215.23 km) |
| Ottawa to Wantagh (New York) | 798.86 mi (1,285.65 km) |
| Ottawa to Warner Robins (Georgia) | 668.87 mi (1,076.44 km) |
| Ottawa to Warr Acres (Oklahoma) | 622.69 mi (1,002.12 km) |
| Ottawa to Warren (Michigan) | 308.24 mi (496.06 km) |
| Ottawa to Warren (Ohio) | 415.66 mi (668.94 km) |
| Ottawa to Warrensburg (Missouri) | 314.93 mi (506.84 km) |
| Ottawa to Warrensville Heights (Ohio) | 378.50 mi (609.13 km) |
| Ottawa to Warrenville (Illinois) | 46.14 mi (74.26 km) |
| Ottawa to Warrington (Florida) | 762.89 mi (1,227.75 km) |
| Ottawa to Warsaw (Indiana) | 154.84 mi (249.20 km) |
| Ottawa to Warwick (Rhode Island) | 898.40 mi (1,445.84 km) |
| Ottawa to Wasco (California) | 1,689.86 mi (2,719.57 km) |
| Ottawa to Washington (District of Columbia) | 645.87 mi (1,039.42 km) |
| Ottawa to Washington (Illinois) | 54.99 mi (88.50 km) |
