| Houilles to Oswego (Illinois) | 4,160.11 mi (6,695.06 km) |
| Houilles to Oswego (New York) | 3,611.17 mi (5,811.62 km) |
| Houilles to Otsego (Minnesota) | 4,196.95 mi (6,754.34 km) |
| Houilles to Ottawa (Illinois) | 4,194.06 mi (6,749.70 km) |
| Houilles to Ottawa (Kansas) | 4,573.26 mi (7,359.95 km) |
| Houilles to Ottumwa (Iowa) | 4,348.62 mi (6,998.43 km) |
| Houilles to Overland (Missouri) | 4,377.57 mi (7,045.01 km) |
| Houilles to Overland Park (Kansas) | 4,537.17 mi (7,301.87 km) |
| Houilles to Overlea (Maryland) | 3,780.59 mi (6,084.28 km) |
| Houilles to Oviedo (Florida) | 4,467.35 mi (7,189.50 km) |
| Houilles to Owasso (Oklahoma) | 4,708.29 mi (7,577.27 km) |
| Houilles to Owatonna (Minnesota) | 4,236.60 mi (6,818.15 km) |
| Houilles to Owensboro (Kentucky) | 4,290.85 mi (6,905.46 km) |
| Houilles to Owings Mills (Maryland) | 3,790.12 mi (6,099.61 km) |
| Houilles to Owosso (Michigan) | 3,938.71 mi (6,338.74 km) |
