| Vila do Conde to Oswego (Illinois) | 3,957.16 mi (6,368.43 km) |
| Vila do Conde to Oswego (New York) | 3,361.30 mi (5,409.48 km) |
| Vila do Conde to Otsego (Minnesota) | 4,069.60 mi (6,549.38 km) |
| Vila do Conde to Ottawa (Illinois) | 3,990.24 mi (6,421.68 km) |
| Vila do Conde to Ottawa (Kansas) | 4,380.30 mi (7,049.41 km) |
| Vila do Conde to Ottumwa (Iowa) | 4,163.74 mi (6,700.89 km) |
| Vila do Conde to Overland (Missouri) | 4,152.91 mi (6,683.46 km) |
| Vila do Conde to Overland Park (Kansas) | 4,343.42 mi (6,990.06 km) |
| Vila do Conde to Overlea (Maryland) | 3,476.37 mi (5,594.68 km) |
| Vila do Conde to Oviedo (Florida) | 4,074.11 mi (6,556.64 km) |
| Vila do Conde to Owasso (Oklahoma) | 4,494.73 mi (7,233.57 km) |
| Vila do Conde to Owatonna (Minnesota) | 4,092.78 mi (6,586.69 km) |
| Vila do Conde to Owensboro (Kentucky) | 4,034.21 mi (6,492.43 km) |
| Vila do Conde to Owings Mills (Maryland) | 3,488.17 mi (5,613.66 km) |
| Vila do Conde to Owosso (Michigan) | 3,726.78 mi (5,997.67 km) |
