| Santa Coloma de Farnes to Oswego (Illinois) | 4,440.93 mi (7,146.99 km) |
| Santa Coloma de Farnes to Oswego (New York) | 3,862.57 mi (6,216.21 km) |
| Santa Coloma de Farnes to Otsego (Minnesota) | 4,516.96 mi (7,269.34 km) |
| Santa Coloma de Farnes to Ottawa (Illinois) | 4,474.61 mi (7,201.18 km) |
| Santa Coloma de Farnes to Ottawa (Kansas) | 4,861.66 mi (7,824.08 km) |
| Santa Coloma de Farnes to Ottumwa (Iowa) | 4,640.15 mi (7,467.60 km) |
| Santa Coloma de Farnes to Overland (Missouri) | 4,647.63 mi (7,479.64 km) |
| Santa Coloma de Farnes to Overland Park (Kansas) | 4,824.97 mi (7,765.03 km) |
| Santa Coloma de Farnes to Overlea (Maryland) | 4,000.86 mi (6,438.76 km) |
| Santa Coloma de Farnes to Oviedo (Florida) | 4,632.27 mi (7,454.93 km) |
| Santa Coloma de Farnes to Owasso (Oklahoma) | 4,986.16 mi (8,024.45 km) |
| Santa Coloma de Farnes to Owatonna (Minnesota) | 4,548.67 mi (7,320.37 km) |
| Santa Coloma de Farnes to Owensboro (Kentucky) | 4,542.26 mi (7,310.06 km) |
| Santa Coloma de Farnes to Owings Mills (Maryland) | 4,011.83 mi (6,456.42 km) |
| Santa Coloma de Farnes to Owosso (Michigan) | 4,213.36 mi (6,780.75 km) |
