| Ottawa to Decatur (Alabama) | 479.13 mi (771.09 km) |
| Ottawa to Decatur (Georgia) | 579.57 mi (932.72 km) |
| Ottawa to Decatur (Illinois) | 103.78 mi (167.02 km) |
| Ottawa to Deer Park (New York) | 807.72 mi (1,299.89 km) |
| Ottawa to Deer Park (Texas) | 879.55 mi (1,415.50 km) |
| Ottawa to Deerfield (Illinois) | 75.19 mi (121.01 km) |
| Ottawa to Deerfield Beach (Florida) | 1,151.99 mi (1,853.95 km) |
| Ottawa to Defiance (Ohio) | 231.49 mi (372.55 km) |
| Ottawa to DeForest (Wisconsin) | 132.19 mi (212.74 km) |
| Ottawa to DeKalb (Illinois) | 39.99 mi (64.36 km) |
| Ottawa to Del Aire (California) | 1,686.72 mi (2,714.51 km) |
| Ottawa to Del City (Oklahoma) | 619.23 mi (996.56 km) |
| Ottawa to Del Rio (Texas) | 1,068.73 mi (1,719.95 km) |
| Ottawa to DeLand (Florida) | 951.57 mi (1,531.41 km) |
| Ottawa to Delano (California) | 1,679.90 mi (2,703.54 km) |
