| Slupsk to Oswego (Illinois) | 4,475.63 mi (7,202.83 km) |
| Slupsk to Oswego (New York) | 3,989.80 mi (6,420.96 km) |
| Slupsk to Otsego (Minnesota) | 4,441.92 mi (7,148.58 km) |
| Slupsk to Ottawa (Illinois) | 4,509.07 mi (7,256.65 km) |
| Slupsk to Ottawa (Kansas) | 4,864.44 mi (7,828.55 km) |
| Slupsk to Ottumwa (Iowa) | 4,640.59 mi (7,468.31 km) |
| Slupsk to Overland (Missouri) | 4,704.63 mi (7,571.36 km) |
| Slupsk to Overland Park (Kansas) | 4,830.36 mi (7,773.71 km) |
| Slupsk to Overlea (Maryland) | 4,198.72 mi (6,757.19 km) |
| Slupsk to Oviedo (Florida) | 4,939.84 mi (7,949.91 km) |
| Slupsk to Owasso (Oklahoma) | 5,013.74 mi (8,068.83 km) |
| Slupsk to Owatonna (Minnesota) | 4,495.20 mi (7,234.32 km) |
| Slupsk to Owensboro (Kentucky) | 4,649.63 mi (7,482.86 km) |
| Slupsk to Owings Mills (Maryland) | 4,205.99 mi (6,768.89 km) |
| Slupsk to Owosso (Michigan) | 4,270.92 mi (6,873.38 km) |
