| Sandiacre to Olympia Heights (Florida) | 4,372.91 mi (7,037.52 km) |
| Sandiacre to Omaha (Nebraska) | 4,197.72 mi (6,755.58 km) |
| Sandiacre to On Top of the World Designated Place (Florida) | 4,279.06 mi (6,886.49 km) |
| Sandiacre to Onalaska (Wisconsin) | 3,895.25 mi (6,268.81 km) |
| Sandiacre to Oneida (New York) | 3,346.18 mi (5,385.15 km) |
| Sandiacre to Oneonta (New York) | 3,349.95 mi (5,391.22 km) |
| Sandiacre to Ontario (California) | 5,319.50 mi (8,560.90 km) |
| Sandiacre to Ontario (Oregon) | 4,732.51 mi (7,616.24 km) |
| Sandiacre to Opa-locka (Florida) | 4,360.37 mi (7,017.34 km) |
| Sandiacre to Opelika (Alabama) | 4,223.51 mi (6,797.08 km) |
| Sandiacre to Opelousas (Louisiana) | 4,597.66 mi (7,399.22 km) |
| Sandiacre to Orange (California) | 5,339.89 mi (8,593.72 km) |
| Sandiacre to Orange (Texas) | 4,684.19 mi (7,538.47 km) |
| Sandiacre to Orange City (Florida) | 4,247.04 mi (6,834.94 km) |
| Sandiacre to Orangeburg (South Carolina) | 4,001.27 mi (6,439.42 km) |
