| Monroeville to Oswego (Illinois) | 455.02 mi (732.29 km) |
| Monroeville to Oswego (New York) | 267.85 mi (431.06 km) |
| Monroeville to Otsego (Minnesota) | 776.27 mi (1,249.29 km) |
| Monroeville to Ottawa (Illinois) | 477.62 mi (768.65 km) |
| Monroeville to Ottawa (Kansas) | 834.84 mi (1,343.55 km) |
| Monroeville to Ottumwa (Iowa) | 663.51 mi (1,067.82 km) |
| Monroeville to Overland (Missouri) | 577.19 mi (928.90 km) |
| Monroeville to Overland Park (Kansas) | 800.11 mi (1,287.64 km) |
| Monroeville to Overlea (Maryland) | 186.90 mi (300.79 km) |
| Monroeville to Oviedo (Florida) | 817.11 mi (1,315.02 km) |
| Monroeville to Owasso (Oklahoma) | 914.89 mi (1,472.37 km) |
| Monroeville to Owatonna (Minnesota) | 732.86 mi (1,179.43 km) |
| Monroeville to Owensboro (Kentucky) | 435.28 mi (700.51 km) |
| Monroeville to Owings Mills (Maryland) | 172.24 mi (277.20 km) |
| Monroeville to Owosso (Michigan) | 288.69 mi (464.60 km) |
