| Marchena to Oswego (Illinois) | 4,252.27 mi (6,843.38 km) |
| Marchena to Oswego (New York) | 3,650.07 mi (5,874.22 km) |
| Marchena to Otsego (Minnesota) | 4,377.87 mi (7,045.50 km) |
| Marchena to Ottawa (Illinois) | 4,285.00 mi (6,896.04 km) |
| Marchena to Ottawa (Kansas) | 4,675.25 mi (7,524.09 km) |
| Marchena to Ottumwa (Iowa) | 4,461.39 mi (7,179.91 km) |
| Marchena to Overland (Missouri) | 4,442.29 mi (7,149.17 km) |
| Marchena to Overland Park (Kansas) | 4,638.40 mi (7,464.78 km) |
| Marchena to Overlea (Maryland) | 3,750.73 mi (6,036.21 km) |
| Marchena to Oviedo (Florida) | 4,315.67 mi (6,945.40 km) |
| Marchena to Owasso (Oklahoma) | 4,784.73 mi (7,700.27 km) |
| Marchena to Owatonna (Minnesota) | 4,398.25 mi (7,078.31 km) |
| Marchena to Owensboro (Kentucky) | 4,316.84 mi (6,947.28 km) |
| Marchena to Owings Mills (Maryland) | 3,763.04 mi (6,056.03 km) |
| Marchena to Owosso (Michigan) | 4,021.36 mi (6,471.76 km) |
