| Puerto del Rosario to Oswego (Illinois) | 4,177.35 mi (6,722.79 km) |
| Puerto del Rosario to Oswego (New York) | 3,563.80 mi (5,735.39 km) |
| Puerto del Rosario to Otsego (Minnesota) | 4,375.06 mi (7,040.97 km) |
| Puerto del Rosario to Ottawa (Illinois) | 4,207.23 mi (6,770.88 km) |
| Puerto del Rosario to Ottawa (Kansas) | 4,587.46 mi (7,382.80 km) |
| Puerto del Rosario to Ottumwa (Iowa) | 4,393.74 mi (7,071.04 km) |
| Puerto del Rosario to Overland (Missouri) | 4,333.22 mi (6,973.64 km) |
| Puerto del Rosario to Overland Park (Kansas) | 4,551.72 mi (7,325.29 km) |
| Puerto del Rosario to Overlea (Maryland) | 3,597.28 mi (5,789.26 km) |
| Puerto del Rosario to Oviedo (Florida) | 4,024.86 mi (6,477.38 km) |
| Puerto del Rosario to Owasso (Oklahoma) | 4,669.19 mi (7,514.33 km) |
| Puerto del Rosario to Owatonna (Minnesota) | 4,377.23 mi (7,044.46 km) |
| Puerto del Rosario to Owensboro (Kentucky) | 4,180.22 mi (6,727.41 km) |
| Puerto del Rosario to Owings Mills (Maryland) | 3,611.28 mi (5,811.79 km) |
| Puerto del Rosario to Owosso (Michigan) | 3,950.90 mi (6,358.35 km) |
