| Stanmore to Olympia Heights (Florida) | 4,427.43 mi (7,125.26 km) |
| Stanmore to Omaha (Nebraska) | 4,280.01 mi (6,888.01 km) |
| Stanmore to On Top of the World Designated Place (Florida) | 4,339.23 mi (6,983.31 km) |
| Stanmore to Onalaska (Wisconsin) | 3,976.82 mi (6,400.08 km) |
| Stanmore to Oneida (New York) | 3,416.74 mi (5,498.71 km) |
| Stanmore to Oneonta (New York) | 3,419.27 mi (5,502.79 km) |
| Stanmore to Ontario (California) | 5,409.67 mi (8,706.02 km) |
| Stanmore to Ontario (Oregon) | 4,826.25 mi (7,767.11 km) |
| Stanmore to Opa-locka (Florida) | 4,414.99 mi (7,105.25 km) |
| Stanmore to Opelika (Alabama) | 4,290.25 mi (6,904.50 km) |
| Stanmore to Opelousas (Louisiana) | 4,668.21 mi (7,512.76 km) |
| Stanmore to Orange (California) | 5,430.07 mi (8,738.85 km) |
| Stanmore to Orange (Texas) | 4,755.81 mi (7,653.74 km) |
| Stanmore to Orange City (Florida) | 4,306.02 mi (6,929.87 km) |
| Stanmore to Orangeburg (South Carolina) | 4,064.83 mi (6,541.71 km) |
