| Ottawa to Duluth (Minnesota) | 408.93 mi (658.10 km) |
| Ottawa to Dumas (Texas) | 803.30 mi (1,292.79 km) |
| Ottawa to Dumont (New Jersey) | 771.33 mi (1,241.33 km) |
| Ottawa to Duncan (Oklahoma) | 682.84 mi (1,098.92 km) |
| Ottawa to Duncanville (Texas) | 748.38 mi (1,204.41 km) |
| Ottawa to Dundalk (Maryland) | 664.86 mi (1,070.00 km) |
| Ottawa to Dunedin (Florida) | 981.69 mi (1,579.88 km) |
| Ottawa to Dunkirk (New York) | 493.97 mi (794.97 km) |
| Ottawa to Dunmore (Pennsylvania) | 684.61 mi (1,101.77 km) |
| Ottawa to Dunwoody (Georgia) | 568.43 mi (914.80 km) |
| Ottawa to Durango (Colorado) | 1,054.52 mi (1,697.08 km) |
| Ottawa to Durant (Oklahoma) | 655.05 mi (1,054.21 km) |
| Ottawa to Durham (North Carolina) | 650.93 mi (1,047.57 km) |
| Ottawa to Dyer (Indiana) | 68.94 mi (110.94 km) |
| Ottawa to Dyersburg (Tennessee) | 368.02 mi (592.27 km) |
