| Oakville to Oswego (Illinois) | 246.90 mi (397.34 km) |
| Oakville to Oswego (New York) | 798.40 mi (1,284.90 km) |
| Oakville to Otsego (Minnesota) | 500.64 mi (805.71 km) |
| Oakville to Ottawa (Illinois) | 215.93 mi (347.50 km) |
| Oakville to Ottawa (Kansas) | 267.41 mi (430.35 km) |
| Oakville to Ottumwa (Iowa) | 209.76 mi (337.57 km) |
| Oakville to Overland (Missouri) | 17.39 mi (27.98 km) |
| Oakville to Overland Park (Kansas) | 237.51 mi (382.24 km) |
| Oakville to Overlea (Maryland) | 744.08 mi (1,197.47 km) |
| Oakville to Oviedo (Florida) | 855.76 mi (1,377.22 km) |
| Oakville to Owasso (Oklahoma) | 337.35 mi (542.91 km) |
| Oakville to Owatonna (Minnesota) | 418.12 mi (672.91 km) |
| Oakville to Owensboro (Kentucky) | 180.54 mi (290.54 km) |
| Oakville to Owings Mills (Maryland) | 729.50 mi (1,174.01 km) |
| Oakville to Owosso (Michigan) | 449.46 mi (723.34 km) |
