| Kastav to Oswego (Illinois) | 4,768.61 mi (7,674.34 km) |
| Kastav to Oswego (New York) | 4,227.77 mi (6,803.93 km) |
| Kastav to Otsego (Minnesota) | 4,789.89 mi (7,708.59 km) |
| Kastav to Ottawa (Illinois) | 4,802.56 mi (7,728.98 km) |
| Kastav to Ottawa (Kansas) | 5,178.18 mi (8,333.48 km) |
| Kastav to Ottumwa (Iowa) | 4,953.07 mi (7,971.20 km) |
| Kastav to Overland (Missouri) | 4,988.62 mi (8,028.40 km) |
| Kastav to Overland Park (Kansas) | 5,142.40 mi (8,275.90 km) |
| Kastav to Overlea (Maryland) | 4,400.70 mi (7,082.25 km) |
| Kastav to Oviedo (Florida) | 5,087.26 mi (8,187.15 km) |
| Kastav to Owasso (Oklahoma) | 5,316.35 mi (8,555.84 km) |
| Kastav to Owatonna (Minnesota) | 4,833.13 mi (7,778.17 km) |
| Kastav to Owensboro (Kentucky) | 4,906.34 mi (7,895.99 km) |
| Kastav to Owings Mills (Maryland) | 4,410.12 mi (7,097.40 km) |
| Kastav to Owosso (Michigan) | 4,549.54 mi (7,321.77 km) |
