| Valletta to Olympia Heights (Florida) | 5,450.42 mi (8,771.61 km) |
| Valletta to Omaha (Nebraska) | 5,530.85 mi (8,901.04 km) |
| Valletta to On Top of the World Designated Place (Florida) | 5,415.52 mi (8,715.44 km) |
| Valletta to Onalaska (Wisconsin) | 5,224.99 mi (8,408.80 km) |
| Valletta to Oneida (New York) | 4,595.09 mi (7,395.08 km) |
| Valletta to Oneonta (New York) | 4,588.51 mi (7,384.50 km) |
| Valletta to Ontario (California) | 6,702.49 mi (10,786.61 km) |
| Valletta to Ontario (Oregon) | 6,132.70 mi (9,869.63 km) |
| Valletta to Opa-locka (Florida) | 5,439.24 mi (8,753.61 km) |
| Valletta to Opelika (Alabama) | 5,424.06 mi (8,729.19 km) |
| Valletta to Opelousas (Louisiana) | 5,827.69 mi (9,378.76 km) |
| Valletta to Orange (California) | 6,722.91 mi (10,819.48 km) |
| Valletta to Orange (Texas) | 5,922.93 mi (9,532.03 km) |
| Valletta to Orange City (Florida) | 5,372.59 mi (8,646.35 km) |
| Valletta to Orangeburg (South Carolina) | 5,176.21 mi (8,330.31 km) |
