| Colesville to Oswego (Illinois) | 622.79 mi (1,002.28 km) |
| Colesville to Oswego (New York) | 303.64 mi (488.67 km) |
| Colesville to Otsego (Minnesota) | 950.08 mi (1,529.00 km) |
| Colesville to Ottawa (Illinois) | 642.97 mi (1,034.75 km) |
| Colesville to Ottawa (Kansas) | 981.78 mi (1,580.02 km) |
| Colesville to Ottumwa (Iowa) | 825.36 mi (1,328.30 km) |
| Colesville to Overland (Missouri) | 718.79 mi (1,156.78 km) |
| Colesville to Overland Park (Kansas) | 948.51 mi (1,526.49 km) |
| Colesville to Overlea (Maryland) | 32.78 mi (52.76 km) |
| Colesville to Oviedo (Florida) | 758.38 mi (1,220.49 km) |
| Colesville to Owasso (Oklahoma) | 1,045.52 mi (1,682.60 km) |
| Colesville to Owatonna (Minnesota) | 905.67 mi (1,457.53 km) |
| Colesville to Owensboro (Kentucky) | 554.84 mi (892.93 km) |
| Colesville to Owings Mills (Maryland) | 25.94 mi (41.75 km) |
| Colesville to Owosso (Michigan) | 461.55 mi (742.80 km) |
