| Hamrun to Olympia Heights (Florida) | 5,449.58 mi (8,770.25 km) |
| Hamrun to Omaha (Nebraska) | 5,530.51 mi (8,900.50 km) |
| Hamrun to On Top of the World Designated Place (Florida) | 5,414.77 mi (8,714.23 km) |
| Hamrun to Onalaska (Wisconsin) | 5,224.65 mi (8,408.26 km) |
| Hamrun to Oneida (New York) | 4,594.57 mi (7,394.25 km) |
| Hamrun to Oneonta (New York) | 4,587.97 mi (7,383.63 km) |
| Hamrun to Ontario (California) | 6,702.35 mi (10,786.39 km) |
| Hamrun to Ontario (Oregon) | 6,132.72 mi (9,869.66 km) |
| Hamrun to Opa-locka (Florida) | 5,438.40 mi (8,752.26 km) |
| Hamrun to Opelika (Alabama) | 5,423.42 mi (8,728.15 km) |
| Hamrun to Opelousas (Louisiana) | 5,827.09 mi (9,377.79 km) |
| Hamrun to Orange (California) | 6,722.77 mi (10,819.26 km) |
| Hamrun to Orange (Texas) | 5,922.34 mi (9,531.08 km) |
| Hamrun to Orange City (Florida) | 5,371.82 mi (8,645.11 km) |
| Hamrun to Orangeburg (South Carolina) | 5,175.53 mi (8,329.21 km) |
