| Torrelodones to Oswego (Illinois) | 4,200.99 mi (6,760.84 km) |
| Torrelodones to Oswego (New York) | 3,608.73 mi (5,807.69 km) |
| Torrelodones to Otsego (Minnesota) | 4,304.02 mi (6,926.65 km) |
| Torrelodones to Ottawa (Illinois) | 4,234.24 mi (6,814.35 km) |
| Torrelodones to Ottawa (Kansas) | 4,623.90 mi (7,441.44 km) |
| Torrelodones to Ottumwa (Iowa) | 4,405.94 mi (7,090.67 km) |
| Torrelodones to Overland (Missouri) | 4,399.47 mi (7,080.27 km) |
| Torrelodones to Overland Park (Kansas) | 4,587.04 mi (7,382.12 km) |
| Torrelodones to Overlea (Maryland) | 3,728.68 mi (6,000.73 km) |
| Torrelodones to Oviedo (Florida) | 4,330.82 mi (6,969.78 km) |
| Torrelodones to Owasso (Oklahoma) | 4,740.79 mi (7,629.56 km) |
| Torrelodones to Owatonna (Minnesota) | 4,329.56 mi (6,967.75 km) |
| Torrelodones to Owensboro (Kentucky) | 4,283.60 mi (6,893.80 km) |
| Torrelodones to Owings Mills (Maryland) | 3,740.33 mi (6,019.48 km) |
| Torrelodones to Owosso (Michigan) | 3,971.08 mi (6,390.84 km) |
