| Dos Hermanas to Oswego (Illinois) | 4,230.68 mi (6,808.62 km) |
| Dos Hermanas to Oswego (New York) | 3,627.85 mi (5,838.46 km) |
| Dos Hermanas to Otsego (Minnesota) | 4,358.10 mi (7,013.68 km) |
| Dos Hermanas to Ottawa (Illinois) | 4,263.35 mi (6,861.21 km) |
| Dos Hermanas to Ottawa (Kansas) | 4,653.58 mi (7,489.22 km) |
| Dos Hermanas to Ottumwa (Iowa) | 4,440.08 mi (7,145.61 km) |
| Dos Hermanas to Overland (Missouri) | 4,420.03 mi (7,113.35 km) |
| Dos Hermanas to Overland Park (Kansas) | 4,616.74 mi (7,429.92 km) |
| Dos Hermanas to Overlea (Maryland) | 3,727.17 mi (5,998.31 km) |
| Dos Hermanas to Oviedo (Florida) | 4,289.97 mi (6,904.04 km) |
| Dos Hermanas to Owasso (Oklahoma) | 4,762.49 mi (7,664.49 km) |
| Dos Hermanas to Owatonna (Minnesota) | 4,378.03 mi (7,045.76 km) |
| Dos Hermanas to Owensboro (Kentucky) | 4,293.92 mi (6,910.40 km) |
| Dos Hermanas to Owings Mills (Maryland) | 3,739.52 mi (6,018.18 km) |
| Dos Hermanas to Owosso (Michigan) | 3,999.73 mi (6,436.95 km) |
