| Monforte del Cid to Oswego (Illinois) | 4,426.56 mi (7,123.86 km) |
| Monforte del Cid to Oswego (New York) | 3,832.39 mi (6,167.64 km) |
| Monforte del Cid to Otsego (Minnesota) | 4,531.96 mi (7,293.48 km) |
| Monforte del Cid to Ottawa (Illinois) | 4,459.75 mi (7,177.27 km) |
| Monforte del Cid to Ottawa (Kansas) | 4,849.59 mi (7,804.67 km) |
| Monforte del Cid to Ottumwa (Iowa) | 4,632.15 mi (7,454.73 km) |
| Monforte del Cid to Overland (Missouri) | 4,623.70 mi (7,441.13 km) |
| Monforte del Cid to Overland Park (Kansas) | 4,812.73 mi (7,745.33 km) |
| Monforte del Cid to Overlea (Maryland) | 3,948.00 mi (6,353.69 km) |
| Monforte del Cid to Oviedo (Florida) | 4,538.20 mi (7,303.52 km) |
| Monforte del Cid to Owasso (Oklahoma) | 4,965.32 mi (7,990.91 km) |
| Monforte del Cid to Owatonna (Minnesota) | 4,557.15 mi (7,334.03 km) |
| Monforte del Cid to Owensboro (Kentucky) | 4,505.87 mi (7,251.50 km) |
| Monforte del Cid to Owings Mills (Maryland) | 3,959.83 mi (6,372.73 km) |
| Monforte del Cid to Owosso (Michigan) | 4,196.43 mi (6,753.50 km) |
