| Casaluce to Olympia Heights (Florida) | 5,295.80 mi (8,522.76 km) |
| Casaluce to Omaha (Nebraska) | 5,274.03 mi (8,487.73 km) |
| Casaluce to On Top of the World Designated Place (Florida) | 5,240.04 mi (8,433.03 km) |
| Casaluce to Onalaska (Wisconsin) | 4,969.34 mi (7,997.39 km) |
| Casaluce to Oneida (New York) | 4,373.24 mi (7,038.06 km) |
| Casaluce to Oneonta (New York) | 4,370.70 mi (7,033.96 km) |
| Casaluce to Ontario (California) | 6,415.07 mi (10,324.06 km) |
| Casaluce to Ontario (Oregon) | 5,827.11 mi (9,377.83 km) |
| Casaluce to Opa-locka (Florida) | 5,284.08 mi (8,503.90 km) |
| Casaluce to Opelika (Alabama) | 5,224.85 mi (8,408.59 km) |
| Casaluce to Opelousas (Louisiana) | 5,618.49 mi (9,042.09 km) |
| Casaluce to Orange (California) | 6,435.47 mi (10,356.89 km) |
| Casaluce to Orange (Texas) | 5,710.49 mi (9,190.15 km) |
| Casaluce to Orange City (Florida) | 5,200.75 mi (8,369.80 km) |
| Casaluce to Orangeburg (South Carolina) | 4,985.42 mi (8,023.26 km) |
