| Alcazar de San Juan to Oswego (Illinois) | 4,276.35 mi (6,882.13 km) |
| Alcazar de San Juan to Oswego (New York) | 3,681.72 mi (5,925.16 km) |
| Alcazar de San Juan to Otsego (Minnesota) | 4,383.78 mi (7,055.02 km) |
| Alcazar de San Juan to Ottawa (Illinois) | 4,309.51 mi (6,935.49 km) |
| Alcazar de San Juan to Ottawa (Kansas) | 4,699.42 mi (7,562.99 km) |
| Alcazar de San Juan to Ottumwa (Iowa) | 4,482.23 mi (7,213.45 km) |
| Alcazar de San Juan to Overland (Missouri) | 4,473.12 mi (7,198.79 km) |
| Alcazar de San Juan to Overland Park (Kansas) | 4,662.55 mi (7,503.65 km) |
| Alcazar de San Juan to Overlea (Maryland) | 3,797.27 mi (6,111.12 km) |
| Alcazar de San Juan to Oviedo (Florida) | 4,389.97 mi (7,064.98 km) |
| Alcazar de San Juan to Owasso (Oklahoma) | 4,814.79 mi (7,748.66 km) |
| Alcazar de San Juan to Owatonna (Minnesota) | 4,408.39 mi (7,094.62 km) |
| Alcazar de San Juan to Owensboro (Kentucky) | 4,355.07 mi (7,008.81 km) |
| Alcazar de San Juan to Owings Mills (Maryland) | 3,809.09 mi (6,130.13 km) |
| Alcazar de San Juan to Owosso (Michigan) | 4,046.15 mi (6,511.65 km) |
