| Costa de Caparica to Oswego (Illinois) | 4,027.65 mi (6,481.88 km) |
| Costa de Caparica to Oswego (New York) | 3,424.46 mi (5,511.13 km) |
| Costa de Caparica to Otsego (Minnesota) | 4,157.41 mi (6,690.70 km) |
| Costa de Caparica to Ottawa (Illinois) | 4,060.29 mi (6,534.41 km) |
| Costa de Caparica to Ottawa (Kansas) | 4,450.50 mi (7,162.38 km) |
| Costa de Caparica to Ottumwa (Iowa) | 4,237.29 mi (6,819.27 km) |
| Costa de Caparica to Overland (Missouri) | 4,216.62 mi (6,785.99 km) |
| Costa de Caparica to Overland Park (Kansas) | 4,413.66 mi (7,103.09 km) |
| Costa de Caparica to Overlea (Maryland) | 3,523.95 mi (5,671.26 km) |
| Costa de Caparica to Oviedo (Florida) | 4,091.31 mi (6,584.32 km) |
| Costa de Caparica to Owasso (Oklahoma) | 4,559.09 mi (7,337.14 km) |
| Costa de Caparica to Owatonna (Minnesota) | 4,176.61 mi (6,721.61 km) |
| Costa de Caparica to Owensboro (Kentucky) | 4,090.43 mi (6,582.92 km) |
| Costa de Caparica to Owings Mills (Maryland) | 3,536.28 mi (5,691.09 km) |
| Costa de Caparica to Owosso (Michigan) | 3,796.69 mi (6,110.18 km) |
