| Dour to Oakley (California) | 5,490.92 mi (8,836.78 km) |
| Dour to Oakton (Virginia) | 3,862.33 mi (6,215.83 km) |
| Dour to Oakville (Missouri) | 4,399.82 mi (7,080.83 km) |
| Dour to Oatfield (Oregon) | 5,081.16 mi (8,177.33 km) |
| Dour to Ocala (Florida) | 4,523.77 mi (7,280.30 km) |
| Dour to Ocean Acres (New Jersey) | 3,700.52 mi (5,955.41 km) |
| Dour to Ocean City (New Jersey) | 3,734.58 mi (6,010.22 km) |
| Dour to Ocean Pines (Maryland) | 3,796.26 mi (6,109.49 km) |
| Dour to Ocean Pointe (Hawaii) | 7,358.82 mi (11,842.88 km) |
| Dour to Ocean Springs (Mississippi) | 4,737.71 mi (7,624.61 km) |
| Dour to Oceanside (California) | 5,635.07 mi (9,068.77 km) |
| Dour to Oceanside (New York) | 3,635.49 mi (5,850.76 km) |
| Dour to Ocoee (Florida) | 4,527.24 mi (7,285.89 km) |
| Dour to Oconomowoc (Wisconsin) | 4,109.06 mi (6,612.90 km) |
| Dour to Odenton (Maryland) | 3,829.52 mi (6,163.02 km) |
