| Catania to Olympia Heights (Florida) | 5,435.00 mi (8,746.78 km) |
| Catania to Omaha (Nebraska) | 5,476.23 mi (8,813.14 km) |
| Catania to On Top of the World Designated Place (Florida) | 5,392.50 mi (8,678.39 km) |
| Catania to Onalaska (Wisconsin) | 5,170.71 mi (8,321.45 km) |
| Catania to Oneida (New York) | 4,553.98 mi (7,328.93 km) |
| Catania to Oneonta (New York) | 4,548.96 mi (7,320.85 km) |
| Catania to Ontario (California) | 6,635.01 mi (10,678.01 km) |
| Catania to Ontario (Oregon) | 6,056.48 mi (9,746.97 km) |
| Catania to Opa-locka (Florida) | 5,423.61 mi (8,728.46 km) |
| Catania to Opelika (Alabama) | 5,392.20 mi (8,677.90 km) |
| Catania to Opelousas (Louisiana) | 5,792.27 mi (9,321.76 km) |
| Catania to Orange (California) | 6,655.43 mi (10,710.88 km) |
| Catania to Orange (Texas) | 5,886.32 mi (9,473.11 km) |
| Catania to Orange City (Florida) | 5,350.87 mi (8,611.39 km) |
| Catania to Orangeburg (South Carolina) | 5,147.34 mi (8,283.84 km) |
