| Torre del Mar to Oswego (Illinois) | 4,335.13 mi (6,976.72 km) |
| Torre del Mar to Oswego (New York) | 3,733.08 mi (6,007.81 km) |
| Torre del Mar to Otsego (Minnesota) | 4,459.80 mi (7,177.36 km) |
| Torre del Mar to Ottawa (Illinois) | 4,367.87 mi (7,029.41 km) |
| Torre del Mar to Ottawa (Kansas) | 4,758.13 mi (7,657.46 km) |
| Torre del Mar to Ottumwa (Iowa) | 4,544.15 mi (7,313.10 km) |
| Torre del Mar to Overland (Missouri) | 4,525.30 mi (7,282.77 km) |
| Torre del Mar to Overland Park (Kansas) | 4,721.27 mi (7,598.15 km) |
| Torre del Mar to Overlea (Maryland) | 3,833.67 mi (6,169.70 km) |
| Torre del Mar to Oviedo (Florida) | 4,396.86 mi (7,076.05 km) |
| Torre del Mar to Owasso (Oklahoma) | 4,867.73 mi (7,833.86 km) |
| Torre del Mar to Owatonna (Minnesota) | 4,480.47 mi (7,210.62 km) |
| Torre del Mar to Owensboro (Kentucky) | 4,399.88 mi (7,080.93 km) |
| Torre del Mar to Owings Mills (Maryland) | 3,845.99 mi (6,189.53 km) |
| Torre del Mar to Owosso (Michigan) | 4,104.23 mi (6,605.12 km) |
