| Castelginest to Oswego (Illinois) | 4,319.17 mi (6,951.03 km) |
| Castelginest to Oswego (New York) | 3,745.51 mi (6,027.82 km) |
| Castelginest to Otsego (Minnesota) | 4,388.69 mi (7,062.91 km) |
| Castelginest to Ottawa (Illinois) | 4,352.92 mi (7,005.35 km) |
| Castelginest to Ottawa (Kansas) | 4,738.93 mi (7,626.58 km) |
| Castelginest to Ottumwa (Iowa) | 4,516.70 mi (7,268.92 km) |
| Castelginest to Overland (Missouri) | 4,528.00 mi (7,287.11 km) |
| Castelginest to Overland Park (Kansas) | 4,702.32 mi (7,567.65 km) |
| Castelginest to Overlea (Maryland) | 3,889.99 mi (6,260.33 km) |
| Castelginest to Oviedo (Florida) | 4,533.88 mi (7,296.57 km) |
| Castelginest to Owasso (Oklahoma) | 4,865.42 mi (7,830.13 km) |
| Castelginest to Owatonna (Minnesota) | 4,421.69 mi (7,116.02 km) |
| Castelginest to Owensboro (Kentucky) | 4,425.99 mi (7,122.95 km) |
| Castelginest to Owings Mills (Maryland) | 3,900.68 mi (6,277.54 km) |
| Castelginest to Owosso (Michigan) | 4,092.47 mi (6,586.19 km) |
