| Ostrov to Oswego (Illinois) | 4,509.32 mi (7,257.05 km) |
| Ostrov to Oswego (New York) | 3,989.61 mi (6,420.65 km) |
| Ostrov to Otsego (Minnesota) | 4,509.04 mi (7,256.60 km) |
| Ostrov to Ottawa (Illinois) | 4,543.16 mi (7,311.51 km) |
| Ostrov to Ottawa (Kansas) | 4,911.66 mi (7,904.56 km) |
| Ostrov to Ottumwa (Iowa) | 4,686.46 mi (7,542.13 km) |
| Ostrov to Overland (Missouri) | 4,733.64 mi (7,618.06 km) |
| Ostrov to Overland Park (Kansas) | 4,876.47 mi (7,847.92 km) |
| Ostrov to Overlea (Maryland) | 4,178.82 mi (6,725.16 km) |
| Ostrov to Oviedo (Florida) | 4,892.53 mi (7,873.77 km) |
| Ostrov to Owasso (Oklahoma) | 5,054.67 mi (8,134.71 km) |
| Ostrov to Owatonna (Minnesota) | 4,556.23 mi (7,332.54 km) |
| Ostrov to Owensboro (Kentucky) | 4,662.50 mi (7,503.57 km) |
| Ostrov to Owings Mills (Maryland) | 4,187.32 mi (6,738.85 km) |
| Ostrov to Owosso (Michigan) | 4,295.45 mi (6,912.85 km) |
