| Vitoria-Gasteiz to Oswego (Illinois) | 4,174.08 mi (6,717.54 km) |
| Vitoria-Gasteiz to Oswego (New York) | 3,590.89 mi (5,778.97 km) |
| Vitoria-Gasteiz to Otsego (Minnesota) | 4,260.39 mi (6,856.43 km) |
| Vitoria-Gasteiz to Ottawa (Illinois) | 4,207.63 mi (6,771.53 km) |
| Vitoria-Gasteiz to Ottawa (Kansas) | 4,595.82 mi (7,396.26 km) |
| Vitoria-Gasteiz to Ottumwa (Iowa) | 4,375.45 mi (7,041.60 km) |
| Vitoria-Gasteiz to Overland (Missouri) | 4,378.16 mi (7,045.97 km) |
| Vitoria-Gasteiz to Overland Park (Kansas) | 4,559.05 mi (7,337.08 km) |
| Vitoria-Gasteiz to Overlea (Maryland) | 3,724.36 mi (5,993.77 km) |
| Vitoria-Gasteiz to Oviedo (Florida) | 4,351.19 mi (7,002.57 km) |
| Vitoria-Gasteiz to Owasso (Oklahoma) | 4,717.78 mi (7,592.53 km) |
| Vitoria-Gasteiz to Owatonna (Minnesota) | 4,289.63 mi (6,903.49 km) |
| Vitoria-Gasteiz to Owensboro (Kentucky) | 4,269.53 mi (6,871.14 km) |
| Vitoria-Gasteiz to Owings Mills (Maryland) | 3,735.49 mi (6,011.69 km) |
| Vitoria-Gasteiz to Owosso (Michigan) | 3,945.57 mi (6,349.78 km) |
