| Mexborough to Oswego (Illinois) | 3,877.78 mi (6,240.68 km) |
| Mexborough to Oswego (New York) | 3,348.91 mi (5,389.55 km) |
| Mexborough to Otsego (Minnesota) | 3,894.13 mi (6,266.99 km) |
| Mexborough to Ottawa (Illinois) | 3,911.70 mi (6,295.27 km) |
| Mexborough to Ottawa (Kansas) | 4,284.87 mi (6,895.83 km) |
| Mexborough to Ottumwa (Iowa) | 4,059.64 mi (6,533.37 km) |
| Mexborough to Overland (Missouri) | 4,099.87 mi (6,598.11 km) |
| Mexborough to Overland Park (Kansas) | 4,249.26 mi (6,838.53 km) |
| Mexborough to Overlea (Maryland) | 3,535.33 mi (5,689.56 km) |
| Mexborough to Oviedo (Florida) | 4,249.92 mi (6,839.58 km) |
| Mexborough to Owasso (Oklahoma) | 4,424.79 mi (7,121.01 km) |
| Mexborough to Owatonna (Minnesota) | 3,937.58 mi (6,336.92 km) |
| Mexborough to Owensboro (Kentucky) | 4,023.93 mi (6,475.89 km) |
| Mexborough to Owings Mills (Maryland) | 3,543.92 mi (5,703.38 km) |
| Mexborough to Owosso (Michigan) | 3,661.00 mi (5,891.82 km) |
