| Colesville to Olympia Heights (Florida) | 942.45 mi (1,516.73 km) |
| Colesville to Omaha (Nebraska) | 1,015.11 mi (1,633.66 km) |
| Colesville to On Top of the World Designated Place (Florida) | 751.78 mi (1,209.87 km) |
| Colesville to Onalaska (Wisconsin) | 805.72 mi (1,296.68 km) |
| Colesville to Oneida (New York) | 285.28 mi (459.12 km) |
| Colesville to Oneonta (New York) | 254.65 mi (409.81 km) |
| Colesville to Ontario (California) | 2,261.35 mi (3,639.29 km) |
| Colesville to Ontario (Oregon) | 2,074.38 mi (3,338.39 km) |
| Colesville to Opa-locka (Florida) | 929.54 mi (1,495.96 km) |
| Colesville to Opelika (Alabama) | 644.58 mi (1,037.35 km) |
| Colesville to Opelousas (Louisiana) | 1,037.39 mi (1,669.52 km) |
| Colesville to Orange (California) | 2,278.71 mi (3,667.23 km) |
| Colesville to Orange (Texas) | 1,133.33 mi (1,823.92 km) |
| Colesville to Orange City (Florida) | 742.02 mi (1,194.16 km) |
| Colesville to Orangeburg (South Carolina) | 441.49 mi (710.51 km) |
